./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:57:11,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:57:11,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:57:11,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:57:11,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:57:11,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:57:11,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:57:11,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:57:11,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:57:11,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:57:11,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:57:11,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:57:11,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:57:11,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:57:11,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:57:11,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:57:11,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:57:11,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:57:11,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:57:11,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:57:11,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:57:11,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:57:11,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:57:11,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:57:11,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:57:11,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:57:11,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:57:11,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:57:11,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:57:11,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:57:11,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:57:11,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:57:11,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:57:11,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:57:11,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:57:11,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:57:11,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:57:11,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:57:11,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:57:11,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:57:11,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:57:11,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-09 08:57:11,190 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:57:11,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:57:11,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:57:11,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:57:11,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:57:11,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:57:11,200 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:57:11,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:57:11,201 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 08:57:11,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:57:11,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:57:11,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:57:11,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:57:11,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:57:11,203 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-09 08:57:11,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:57:11,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:57:11,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:57:11,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:57:11,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:57:11,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:57:11,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:57:11,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:57:11,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:57:11,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:57:11,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:57:11,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:57:11,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:57:11,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:57:11,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 [2021-11-09 08:57:11,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:57:11,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:57:11,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:57:11,557 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:57:11,558 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:57:11,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2021-11-09 08:57:11,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/data/2a816157a/b3807e5c428148e1befe95e40e4637f5/FLAG0da304b69 [2021-11-09 08:57:12,065 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:57:12,065 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2021-11-09 08:57:12,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/data/2a816157a/b3807e5c428148e1befe95e40e4637f5/FLAG0da304b69 [2021-11-09 08:57:12,470 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/data/2a816157a/b3807e5c428148e1befe95e40e4637f5 [2021-11-09 08:57:12,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:57:12,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:57:12,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:57:12,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:57:12,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:57:12,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de1a6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12, skipping insertion in model container [2021-11-09 08:57:12,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:57:12,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:57:12,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:57:12,643 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:57:12,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:57:12,686 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:57:12,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12 WrapperNode [2021-11-09 08:57:12,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:57:12,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:57:12,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:57:12,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:57:12,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:57:12,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:57:12,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:57:12,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:57:12,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:57:12,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:57:12,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:57:12,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:57:12,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12" (1/1) ... [2021-11-09 08:57:12,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:57:12,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:12,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:57:12,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:57:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:57:12,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:57:12,989 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:57:12,989 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-09 08:57:12,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:57:12 BoogieIcfgContainer [2021-11-09 08:57:12,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:57:12,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:57:12,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:57:12,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:57:12,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:57:12" (1/3) ... [2021-11-09 08:57:12,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4a9b61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:57:12, skipping insertion in model container [2021-11-09 08:57:12,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:12" (2/3) ... [2021-11-09 08:57:12,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4a9b61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:57:12, skipping insertion in model container [2021-11-09 08:57:12,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:57:12" (3/3) ... [2021-11-09 08:57:13,000 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2021-11-09 08:57:13,006 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:57:13,006 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-09 08:57:13,070 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:57:13,077 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:57:13,077 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-09 08:57:13,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-09 08:57:13,121 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:13,122 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-09 08:57:13,123 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:13,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:13,129 INFO L85 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-11-09 08:57:13,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:13,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326562984] [2021-11-09 08:57:13,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:13,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:13,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:13,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:13,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326562984] [2021-11-09 08:57:13,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326562984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:13,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:13,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-09 08:57:13,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348853551] [2021-11-09 08:57:13,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:57:13,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:13,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:57:13,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,325 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:13,375 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-11-09 08:57:13,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:57:13,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-09 08:57:13,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:13,386 INFO L225 Difference]: With dead ends: 30 [2021-11-09 08:57:13,386 INFO L226 Difference]: Without dead ends: 17 [2021-11-09 08:57:13,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-09 08:57:13,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-11-09 08:57:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.6) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-09 08:57:13,422 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2021-11-09 08:57:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:13,423 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-09 08:57:13,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-09 08:57:13,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-09 08:57:13,424 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:13,424 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-09 08:57:13,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:57:13,425 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:13,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:13,426 INFO L85 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2021-11-09 08:57:13,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:13,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100486162] [2021-11-09 08:57:13,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:13,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:13,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:13,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:13,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100486162] [2021-11-09 08:57:13,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100486162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:13,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:13,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-09 08:57:13,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270230079] [2021-11-09 08:57:13,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:57:13,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:13,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:57:13,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,464 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:13,482 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-11-09 08:57:13,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:57:13,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-09 08:57:13,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:13,484 INFO L225 Difference]: With dead ends: 16 [2021-11-09 08:57:13,484 INFO L226 Difference]: Without dead ends: 15 [2021-11-09 08:57:13,485 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-09 08:57:13,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-09 08:57:13,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.5) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-09 08:57:13,488 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 4 [2021-11-09 08:57:13,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:13,489 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-09 08:57:13,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,489 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-09 08:57:13,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-09 08:57:13,490 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:13,490 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-09 08:57:13,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:57:13,491 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:13,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:13,491 INFO L85 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2021-11-09 08:57:13,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:13,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747720847] [2021-11-09 08:57:13,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:13,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:13,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:13,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:13,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747720847] [2021-11-09 08:57:13,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747720847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:13,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:13,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-09 08:57:13,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493030491] [2021-11-09 08:57:13,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:57:13,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:13,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:57:13,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,531 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:13,539 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-11-09 08:57:13,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:57:13,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-09 08:57:13,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:13,541 INFO L225 Difference]: With dead ends: 15 [2021-11-09 08:57:13,541 INFO L226 Difference]: Without dead ends: 14 [2021-11-09 08:57:13,542 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-09 08:57:13,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-09 08:57:13,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-09 08:57:13,546 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2021-11-09 08:57:13,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:13,546 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-09 08:57:13,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,547 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-09 08:57:13,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-09 08:57:13,547 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:13,548 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:57:13,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:57:13,548 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:13,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:13,549 INFO L85 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2021-11-09 08:57:13,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:13,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899509430] [2021-11-09 08:57:13,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:13,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:13,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:13,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899509430] [2021-11-09 08:57:13,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899509430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:13,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:13,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-09 08:57:13,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495571189] [2021-11-09 08:57:13,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:57:13,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:13,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:57:13,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,579 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:13,589 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-11-09 08:57:13,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:57:13,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-09 08:57:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:13,590 INFO L225 Difference]: With dead ends: 18 [2021-11-09 08:57:13,590 INFO L226 Difference]: Without dead ends: 17 [2021-11-09 08:57:13,591 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-09 08:57:13,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-09 08:57:13,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-11-09 08:57:13,595 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 6 [2021-11-09 08:57:13,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:13,596 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-11-09 08:57:13,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,596 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-11-09 08:57:13,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-09 08:57:13,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:13,597 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:13,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 08:57:13,598 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:13,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:13,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1366846491, now seen corresponding path program 1 times [2021-11-09 08:57:13,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:13,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644910420] [2021-11-09 08:57:13,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:13,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:13,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:13,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644910420] [2021-11-09 08:57:13,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644910420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:13,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:13,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-09 08:57:13,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963537982] [2021-11-09 08:57:13,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:57:13,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:13,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:57:13,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,657 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:13,681 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-11-09 08:57:13,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:57:13,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-09 08:57:13,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:13,683 INFO L225 Difference]: With dead ends: 17 [2021-11-09 08:57:13,683 INFO L226 Difference]: Without dead ends: 16 [2021-11-09 08:57:13,684 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-09 08:57:13,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-09 08:57:13,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-09 08:57:13,688 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-11-09 08:57:13,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:13,688 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-09 08:57:13,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,689 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-09 08:57:13,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-09 08:57:13,689 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:13,690 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:13,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 08:57:13,690 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:13,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:13,691 INFO L85 PathProgramCache]: Analyzing trace with hash 577431791, now seen corresponding path program 1 times [2021-11-09 08:57:13,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:13,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567264616] [2021-11-09 08:57:13,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:13,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:13,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:13,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567264616] [2021-11-09 08:57:13,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567264616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:13,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:13,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:57:13,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498499808] [2021-11-09 08:57:13,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:57:13,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:13,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:57:13,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,724 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:13,732 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-11-09 08:57:13,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:57:13,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-09 08:57:13,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:13,734 INFO L225 Difference]: With dead ends: 16 [2021-11-09 08:57:13,735 INFO L226 Difference]: Without dead ends: 15 [2021-11-09 08:57:13,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:57:13,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-09 08:57:13,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-09 08:57:13,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-09 08:57:13,739 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2021-11-09 08:57:13,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:13,740 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-09 08:57:13,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,740 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-09 08:57:13,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-09 08:57:13,741 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:13,741 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:13,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 08:57:13,742 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:13,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:13,743 INFO L85 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2021-11-09 08:57:13,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:13,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277676772] [2021-11-09 08:57:13,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:13,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:13,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:13,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:13,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277676772] [2021-11-09 08:57:13,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277676772] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:13,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248888044] [2021-11-09 08:57:13,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:13,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:13,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:13,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:13,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 08:57:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:13,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 08:57:13,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:13,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:13,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248888044] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:13,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:13,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-11-09 08:57:13,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165578491] [2021-11-09 08:57:13,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:57:13,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:13,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:57:13,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:57:13,908 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:13,925 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-11-09 08:57:13,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:57:13,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-09 08:57:13,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:13,927 INFO L225 Difference]: With dead ends: 21 [2021-11-09 08:57:13,927 INFO L226 Difference]: Without dead ends: 20 [2021-11-09 08:57:13,927 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:57:13,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-09 08:57:13,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-11-09 08:57:13,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-09 08:57:13,932 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2021-11-09 08:57:13,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:13,932 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-11-09 08:57:13,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:13,932 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-09 08:57:13,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-09 08:57:13,933 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:13,933 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-11-09 08:57:13,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:14,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-09 08:57:14,150 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:14,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:14,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1313063709, now seen corresponding path program 1 times [2021-11-09 08:57:14,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:14,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300546649] [2021-11-09 08:57:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:14,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:14,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:14,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300546649] [2021-11-09 08:57:14,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300546649] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:14,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275935124] [2021-11-09 08:57:14,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:14,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:14,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:14,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:14,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 08:57:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:14,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 08:57:14,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:14,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:14,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275935124] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:14,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:14,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-11-09 08:57:14,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586338822] [2021-11-09 08:57:14,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:57:14,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:14,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:57:14,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:57:14,337 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:14,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:14,360 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-11-09 08:57:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:57:14,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-09 08:57:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:14,361 INFO L225 Difference]: With dead ends: 23 [2021-11-09 08:57:14,361 INFO L226 Difference]: Without dead ends: 22 [2021-11-09 08:57:14,362 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:57:14,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-09 08:57:14,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-09 08:57:14,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-11-09 08:57:14,366 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2021-11-09 08:57:14,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:14,367 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-11-09 08:57:14,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-11-09 08:57:14,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-09 08:57:14,368 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:14,368 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1] [2021-11-09 08:57:14,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:14,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:14,582 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:14,583 INFO L85 PathProgramCache]: Analyzing trace with hash 844787553, now seen corresponding path program 2 times [2021-11-09 08:57:14,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:14,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168274164] [2021-11-09 08:57:14,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:14,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:14,659 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:14,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:14,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168274164] [2021-11-09 08:57:14,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168274164] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:14,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221021028] [2021-11-09 08:57:14,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:57:14,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:14,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:14,661 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:14,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 08:57:14,719 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:57:14,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:14,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 08:57:14,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:14,812 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:14,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221021028] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:14,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:14,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-11-09 08:57:14,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375663468] [2021-11-09 08:57:14,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:57:14,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:57:14,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:57:14,817 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:14,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:14,853 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-11-09 08:57:14,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:57:14,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-09 08:57:14,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:14,855 INFO L225 Difference]: With dead ends: 28 [2021-11-09 08:57:14,855 INFO L226 Difference]: Without dead ends: 27 [2021-11-09 08:57:14,855 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:57:14,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-09 08:57:14,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-11-09 08:57:14,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:14,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-11-09 08:57:14,860 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 17 [2021-11-09 08:57:14,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:14,860 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-11-09 08:57:14,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:14,860 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-11-09 08:57:14,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-09 08:57:14,861 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:14,861 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1] [2021-11-09 08:57:14,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:15,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:15,078 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:15,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:15,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1442319379, now seen corresponding path program 2 times [2021-11-09 08:57:15,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:15,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917279580] [2021-11-09 08:57:15,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:15,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:15,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:15,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917279580] [2021-11-09 08:57:15,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917279580] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:15,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982959034] [2021-11-09 08:57:15,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:57:15,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:15,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:15,152 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:15,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 08:57:15,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:57:15,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:15,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 08:57:15,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:15,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982959034] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:15,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:15,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-11-09 08:57:15,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976264981] [2021-11-09 08:57:15,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:57:15,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:15,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:57:15,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:57:15,374 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:15,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:15,417 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2021-11-09 08:57:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:57:15,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-09 08:57:15,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:15,418 INFO L225 Difference]: With dead ends: 30 [2021-11-09 08:57:15,418 INFO L226 Difference]: Without dead ends: 29 [2021-11-09 08:57:15,418 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:57:15,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-09 08:57:15,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-09 08:57:15,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:15,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-11-09 08:57:15,423 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 20 [2021-11-09 08:57:15,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:15,423 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-11-09 08:57:15,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:15,424 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-11-09 08:57:15,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-09 08:57:15,424 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:15,425 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1] [2021-11-09 08:57:15,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:15,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-09 08:57:15,625 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:15,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:15,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1141262287, now seen corresponding path program 3 times [2021-11-09 08:57:15,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:15,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791154282] [2021-11-09 08:57:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:15,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:15,699 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:15,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:15,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791154282] [2021-11-09 08:57:15,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791154282] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:15,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812010862] [2021-11-09 08:57:15,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:57:15,701 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:15,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:15,702 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:15,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 08:57:15,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-09 08:57:15,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:15,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 08:57:15,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:15,867 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:15,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812010862] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:15,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:15,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-09 08:57:15,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965213648] [2021-11-09 08:57:15,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:57:15,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:15,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:57:15,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:57:15,869 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:15,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:15,887 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2021-11-09 08:57:15,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:57:15,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-09 08:57:15,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:15,889 INFO L225 Difference]: With dead ends: 35 [2021-11-09 08:57:15,889 INFO L226 Difference]: Without dead ends: 34 [2021-11-09 08:57:15,889 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:57:15,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-09 08:57:15,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-11-09 08:57:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.064516129032258) internal successors, (33), 32 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-11-09 08:57:15,894 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 24 [2021-11-09 08:57:15,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:15,894 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-11-09 08:57:15,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-11-09 08:57:15,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-09 08:57:15,895 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:15,896 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1] [2021-11-09 08:57:15,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:16,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-09 08:57:16,112 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:16,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:16,113 INFO L85 PathProgramCache]: Analyzing trace with hash -383633123, now seen corresponding path program 3 times [2021-11-09 08:57:16,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:16,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205782227] [2021-11-09 08:57:16,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:16,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:16,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:16,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205782227] [2021-11-09 08:57:16,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205782227] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:16,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116989754] [2021-11-09 08:57:16,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:57:16,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:16,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:16,168 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:16,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-09 08:57:16,249 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-09 08:57:16,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:16,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 08:57:16,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:16,355 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:16,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116989754] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:16,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:16,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-09 08:57:16,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222744100] [2021-11-09 08:57:16,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:57:16,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:16,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:57:16,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:57:16,360 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:16,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:16,381 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-11-09 08:57:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:57:16,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-09 08:57:16,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:16,383 INFO L225 Difference]: With dead ends: 37 [2021-11-09 08:57:16,383 INFO L226 Difference]: Without dead ends: 36 [2021-11-09 08:57:16,383 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:57:16,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-09 08:57:16,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-09 08:57:16,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:16,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-11-09 08:57:16,388 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 27 [2021-11-09 08:57:16,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:16,389 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-11-09 08:57:16,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:16,389 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-11-09 08:57:16,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-09 08:57:16,390 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:16,390 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1] [2021-11-09 08:57:16,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:16,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-09 08:57:16,605 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:16,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:16,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1391598239, now seen corresponding path program 4 times [2021-11-09 08:57:16,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:16,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379652201] [2021-11-09 08:57:16,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:16,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:16,659 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:16,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:16,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379652201] [2021-11-09 08:57:16,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379652201] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:16,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739923755] [2021-11-09 08:57:16,660 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:57:16,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:16,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:16,661 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:16,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-09 08:57:16,731 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:57:16,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:16,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:57:16,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:16,826 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:16,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739923755] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:16,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:16,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-11-09 08:57:16,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253121763] [2021-11-09 08:57:16,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:57:16,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:16,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:57:16,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:57:16,829 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:16,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:16,852 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-11-09 08:57:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:57:16,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-09 08:57:16,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:16,854 INFO L225 Difference]: With dead ends: 42 [2021-11-09 08:57:16,854 INFO L226 Difference]: Without dead ends: 41 [2021-11-09 08:57:16,854 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:57:16,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-09 08:57:16,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-11-09 08:57:16,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 39 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:16,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-11-09 08:57:16,859 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 31 [2021-11-09 08:57:16,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:16,860 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-11-09 08:57:16,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:16,860 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-11-09 08:57:16,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-09 08:57:16,861 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:16,861 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1] [2021-11-09 08:57:16,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:17,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:17,082 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:17,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:17,083 INFO L85 PathProgramCache]: Analyzing trace with hash -2078753299, now seen corresponding path program 4 times [2021-11-09 08:57:17,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:17,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299892489] [2021-11-09 08:57:17,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:17,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:17,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:17,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299892489] [2021-11-09 08:57:17,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299892489] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:17,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155429914] [2021-11-09 08:57:17,154 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:57:17,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:17,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:17,158 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:17,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-09 08:57:17,243 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:57:17,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:17,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:57:17,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:17,337 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:17,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155429914] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:17,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:17,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-11-09 08:57:17,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114789509] [2021-11-09 08:57:17,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:57:17,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:17,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:57:17,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:57:17,340 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:17,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:17,373 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2021-11-09 08:57:17,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:57:17,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-09 08:57:17,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:17,374 INFO L225 Difference]: With dead ends: 44 [2021-11-09 08:57:17,374 INFO L226 Difference]: Without dead ends: 43 [2021-11-09 08:57:17,375 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:57:17,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-09 08:57:17,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-09 08:57:17,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.048780487804878) internal successors, (43), 42 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:17,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2021-11-09 08:57:17,380 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 34 [2021-11-09 08:57:17,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:17,380 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2021-11-09 08:57:17,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:17,380 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2021-11-09 08:57:17,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-09 08:57:17,382 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:17,382 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1] [2021-11-09 08:57:17,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:17,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-09 08:57:17,605 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:17,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:17,605 INFO L85 PathProgramCache]: Analyzing trace with hash 747995697, now seen corresponding path program 5 times [2021-11-09 08:57:17,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:17,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220668675] [2021-11-09 08:57:17,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:17,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:17,679 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:17,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:17,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220668675] [2021-11-09 08:57:17,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220668675] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:17,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754486450] [2021-11-09 08:57:17,680 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:57:17,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:17,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:17,681 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:17,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-09 08:57:17,778 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-09 08:57:17,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:17,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-09 08:57:17,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:17,894 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:17,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754486450] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:17,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:17,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-09 08:57:17,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343130949] [2021-11-09 08:57:17,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 08:57:17,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:17,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 08:57:17,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:57:17,897 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:17,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:17,924 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2021-11-09 08:57:17,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:57:17,925 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-09 08:57:17,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:17,928 INFO L225 Difference]: With dead ends: 49 [2021-11-09 08:57:17,928 INFO L226 Difference]: Without dead ends: 48 [2021-11-09 08:57:17,930 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:57:17,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-09 08:57:17,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2021-11-09 08:57:17,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 46 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:17,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-11-09 08:57:17,949 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 38 [2021-11-09 08:57:17,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:17,949 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-11-09 08:57:17,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:17,950 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-11-09 08:57:17,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-09 08:57:17,954 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:17,954 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 1, 1] [2021-11-09 08:57:17,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:18,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:18,182 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:18,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:18,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1249521437, now seen corresponding path program 5 times [2021-11-09 08:57:18,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:18,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353699099] [2021-11-09 08:57:18,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:18,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:18,255 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:18,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:18,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353699099] [2021-11-09 08:57:18,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353699099] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:18,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152797765] [2021-11-09 08:57:18,256 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:57:18,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:18,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:18,258 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:18,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-09 08:57:18,375 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-09 08:57:18,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:18,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-09 08:57:18,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:18,503 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:18,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152797765] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:18,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:18,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-09 08:57:18,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38993151] [2021-11-09 08:57:18,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 08:57:18,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:18,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 08:57:18,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:57:18,507 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:18,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:18,534 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2021-11-09 08:57:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:57:18,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-09 08:57:18,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:18,535 INFO L225 Difference]: With dead ends: 51 [2021-11-09 08:57:18,536 INFO L226 Difference]: Without dead ends: 50 [2021-11-09 08:57:18,536 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:57:18,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-09 08:57:18,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-09 08:57:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:18,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-11-09 08:57:18,548 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 41 [2021-11-09 08:57:18,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:18,549 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-11-09 08:57:18,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:18,550 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-11-09 08:57:18,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-09 08:57:18,552 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:18,552 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1] [2021-11-09 08:57:18,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-09 08:57:18,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-09 08:57:18,753 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:18,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:18,754 INFO L85 PathProgramCache]: Analyzing trace with hash 360373089, now seen corresponding path program 6 times [2021-11-09 08:57:18,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:18,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708204981] [2021-11-09 08:57:18,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:18,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:18,828 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:18,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:18,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708204981] [2021-11-09 08:57:18,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708204981] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:18,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231327777] [2021-11-09 08:57:18,829 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:57:18,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:18,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:18,831 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:18,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-09 08:57:18,952 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-11-09 08:57:18,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:18,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 08:57:18,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:19,089 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:19,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231327777] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:19,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:19,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-11-09 08:57:19,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503968861] [2021-11-09 08:57:19,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 08:57:19,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:19,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 08:57:19,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:57:19,092 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:19,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:19,116 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-11-09 08:57:19,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 08:57:19,116 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-09 08:57:19,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:19,117 INFO L225 Difference]: With dead ends: 56 [2021-11-09 08:57:19,117 INFO L226 Difference]: Without dead ends: 55 [2021-11-09 08:57:19,118 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:57:19,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-09 08:57:19,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-11-09 08:57:19,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.0384615384615385) internal successors, (54), 53 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:19,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-11-09 08:57:19,122 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 45 [2021-11-09 08:57:19,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:19,123 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-11-09 08:57:19,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:19,123 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-11-09 08:57:19,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-09 08:57:19,124 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:19,124 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 1, 1] [2021-11-09 08:57:19,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:19,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-09 08:57:19,350 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:19,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1543501843, now seen corresponding path program 6 times [2021-11-09 08:57:19,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:19,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156424222] [2021-11-09 08:57:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:19,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:19,422 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:19,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:19,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156424222] [2021-11-09 08:57:19,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156424222] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:19,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358482302] [2021-11-09 08:57:19,423 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:57:19,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:19,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:19,424 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:19,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-09 08:57:19,553 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-11-09 08:57:19,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:19,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 08:57:19,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:19,695 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:19,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358482302] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:19,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:19,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-11-09 08:57:19,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684088365] [2021-11-09 08:57:19,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 08:57:19,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:19,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 08:57:19,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:57:19,700 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:19,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:19,728 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-11-09 08:57:19,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 08:57:19,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-09 08:57:19,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:19,729 INFO L225 Difference]: With dead ends: 58 [2021-11-09 08:57:19,729 INFO L226 Difference]: Without dead ends: 57 [2021-11-09 08:57:19,730 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:57:19,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-09 08:57:19,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-09 08:57:19,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.0363636363636364) internal successors, (57), 56 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:19,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2021-11-09 08:57:19,735 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 48 [2021-11-09 08:57:19,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:19,735 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2021-11-09 08:57:19,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:19,736 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2021-11-09 08:57:19,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-09 08:57:19,737 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:19,737 INFO L513 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1] [2021-11-09 08:57:19,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:19,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-09 08:57:19,950 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:19,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:19,950 INFO L85 PathProgramCache]: Analyzing trace with hash 331861041, now seen corresponding path program 7 times [2021-11-09 08:57:19,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:19,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469517779] [2021-11-09 08:57:19,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:19,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:20,040 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:20,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:20,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469517779] [2021-11-09 08:57:20,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469517779] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:20,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642357975] [2021-11-09 08:57:20,041 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:57:20,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:20,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:20,042 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:20,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-09 08:57:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:20,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 08:57:20,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:20,372 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:20,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642357975] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:20,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:20,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-11-09 08:57:20,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346805640] [2021-11-09 08:57:20,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:57:20,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:20,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:57:20,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:57:20,374 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:20,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:20,405 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2021-11-09 08:57:20,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:57:20,406 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-09 08:57:20,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:20,407 INFO L225 Difference]: With dead ends: 63 [2021-11-09 08:57:20,407 INFO L226 Difference]: Without dead ends: 62 [2021-11-09 08:57:20,407 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:57:20,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-09 08:57:20,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2021-11-09 08:57:20,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 59 states have (on average 1.0338983050847457) internal successors, (61), 60 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:20,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2021-11-09 08:57:20,411 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 52 [2021-11-09 08:57:20,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:20,412 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2021-11-09 08:57:20,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2021-11-09 08:57:20,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-09 08:57:20,412 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:20,413 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 1, 1] [2021-11-09 08:57:20,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:20,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:20,613 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:20,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:20,614 INFO L85 PathProgramCache]: Analyzing trace with hash -542399203, now seen corresponding path program 7 times [2021-11-09 08:57:20,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:20,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747741496] [2021-11-09 08:57:20,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:20,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:20,698 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:20,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:20,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747741496] [2021-11-09 08:57:20,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747741496] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:20,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355826585] [2021-11-09 08:57:20,699 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:57:20,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:20,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:20,700 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:20,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-09 08:57:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:20,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 08:57:20,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:21,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355826585] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:21,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:21,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-11-09 08:57:21,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882789618] [2021-11-09 08:57:21,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:57:21,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:21,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:57:21,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:57:21,023 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:21,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:21,048 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2021-11-09 08:57:21,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:57:21,049 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-09 08:57:21,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:21,050 INFO L225 Difference]: With dead ends: 65 [2021-11-09 08:57:21,050 INFO L226 Difference]: Without dead ends: 64 [2021-11-09 08:57:21,050 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:57:21,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-09 08:57:21,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-11-09 08:57:21,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 62 states have (on average 1.032258064516129) internal successors, (64), 63 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:21,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2021-11-09 08:57:21,054 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 55 [2021-11-09 08:57:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:21,055 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2021-11-09 08:57:21,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2021-11-09 08:57:21,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-09 08:57:21,056 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:21,056 INFO L513 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1] [2021-11-09 08:57:21,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:21,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:21,262 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:21,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:21,262 INFO L85 PathProgramCache]: Analyzing trace with hash 687952225, now seen corresponding path program 8 times [2021-11-09 08:57:21,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:21,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129612672] [2021-11-09 08:57:21,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:21,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:21,345 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:21,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:21,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129612672] [2021-11-09 08:57:21,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129612672] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:21,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504362418] [2021-11-09 08:57:21,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:57:21,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:21,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:21,352 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:21,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-09 08:57:21,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:57:21,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:21,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 08:57:21,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:21,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504362418] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:21,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:21,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-11-09 08:57:21,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569031181] [2021-11-09 08:57:21,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 08:57:21,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:21,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 08:57:21,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:57:21,713 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 11 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:21,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:21,743 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2021-11-09 08:57:21,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 08:57:21,744 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-09 08:57:21,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:21,745 INFO L225 Difference]: With dead ends: 70 [2021-11-09 08:57:21,745 INFO L226 Difference]: Without dead ends: 69 [2021-11-09 08:57:21,746 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:57:21,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-09 08:57:21,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2021-11-09 08:57:21,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 66 states have (on average 1.0303030303030303) internal successors, (68), 67 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:21,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2021-11-09 08:57:21,750 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 59 [2021-11-09 08:57:21,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:21,750 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2021-11-09 08:57:21,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2021-11-09 08:57:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-09 08:57:21,751 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:21,751 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 1, 1] [2021-11-09 08:57:21,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:21,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:21,965 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:21,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:21,965 INFO L85 PathProgramCache]: Analyzing trace with hash -799157779, now seen corresponding path program 8 times [2021-11-09 08:57:21,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:21,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189807021] [2021-11-09 08:57:21,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:21,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:22,050 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:22,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:22,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189807021] [2021-11-09 08:57:22,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189807021] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:22,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911384848] [2021-11-09 08:57:22,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:57:22,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:22,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:22,059 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:22,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-09 08:57:22,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:57:22,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:22,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 08:57:22,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:22,413 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:22,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911384848] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:22,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:22,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-11-09 08:57:22,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271189793] [2021-11-09 08:57:22,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 08:57:22,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:22,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 08:57:22,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:57:22,416 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:22,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:22,442 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2021-11-09 08:57:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 08:57:22,443 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-09 08:57:22,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:22,444 INFO L225 Difference]: With dead ends: 72 [2021-11-09 08:57:22,444 INFO L226 Difference]: Without dead ends: 71 [2021-11-09 08:57:22,445 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:57:22,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-09 08:57:22,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-09 08:57:22,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2021-11-09 08:57:22,453 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 62 [2021-11-09 08:57:22,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:22,453 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2021-11-09 08:57:22,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2021-11-09 08:57:22,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-09 08:57:22,458 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:22,458 INFO L513 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1] [2021-11-09 08:57:22,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:22,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-09 08:57:22,673 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:22,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:22,673 INFO L85 PathProgramCache]: Analyzing trace with hash -399469007, now seen corresponding path program 9 times [2021-11-09 08:57:22,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:22,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183773146] [2021-11-09 08:57:22,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:22,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:22,777 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:22,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:22,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183773146] [2021-11-09 08:57:22,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183773146] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:22,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906599258] [2021-11-09 08:57:22,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:57:22,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:22,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:22,779 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:22,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-09 08:57:22,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-09 08:57:22,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:22,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-09 08:57:22,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:23,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906599258] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:23,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:23,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-11-09 08:57:23,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297504104] [2021-11-09 08:57:23,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 08:57:23,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:23,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 08:57:23,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:57:23,152 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:23,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:23,196 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2021-11-09 08:57:23,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 08:57:23,196 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-09 08:57:23,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:23,197 INFO L225 Difference]: With dead ends: 77 [2021-11-09 08:57:23,197 INFO L226 Difference]: Without dead ends: 76 [2021-11-09 08:57:23,198 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:57:23,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-09 08:57:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2021-11-09 08:57:23,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 73 states have (on average 1.0273972602739727) internal successors, (75), 74 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:23,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2021-11-09 08:57:23,202 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 66 [2021-11-09 08:57:23,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:23,202 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2021-11-09 08:57:23,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:23,203 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2021-11-09 08:57:23,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-09 08:57:23,206 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:23,206 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 1, 1] [2021-11-09 08:57:23,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:23,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-09 08:57:23,426 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:23,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:23,427 INFO L85 PathProgramCache]: Analyzing trace with hash 773233437, now seen corresponding path program 9 times [2021-11-09 08:57:23,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:23,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973886839] [2021-11-09 08:57:23,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:23,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:23,529 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:23,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:23,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973886839] [2021-11-09 08:57:23,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973886839] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:23,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089750805] [2021-11-09 08:57:23,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:57:23,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:23,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:23,531 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:23,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-09 08:57:23,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-09 08:57:23,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:23,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-09 08:57:23,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:24,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089750805] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:24,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:24,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-11-09 08:57:24,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77753518] [2021-11-09 08:57:24,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 08:57:24,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:24,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 08:57:24,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:57:24,015 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:24,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:24,047 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2021-11-09 08:57:24,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 08:57:24,048 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-09 08:57:24,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:24,049 INFO L225 Difference]: With dead ends: 79 [2021-11-09 08:57:24,049 INFO L226 Difference]: Without dead ends: 78 [2021-11-09 08:57:24,050 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:57:24,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-09 08:57:24,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-11-09 08:57:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 1.0263157894736843) internal successors, (78), 77 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:24,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2021-11-09 08:57:24,054 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 69 [2021-11-09 08:57:24,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:24,054 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2021-11-09 08:57:24,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:24,055 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2021-11-09 08:57:24,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-09 08:57:24,055 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:24,056 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1] [2021-11-09 08:57:24,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:24,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-09 08:57:24,270 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:24,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:24,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1123989663, now seen corresponding path program 10 times [2021-11-09 08:57:24,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:24,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707602010] [2021-11-09 08:57:24,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:24,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:24,374 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:24,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:24,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707602010] [2021-11-09 08:57:24,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707602010] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:24,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957596042] [2021-11-09 08:57:24,375 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:57:24,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:24,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:24,376 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:24,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-09 08:57:24,693 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:57:24,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:24,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 08:57:24,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:24,876 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:24,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957596042] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:24,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:24,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-11-09 08:57:24,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12614612] [2021-11-09 08:57:24,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-09 08:57:24,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:24,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-09 08:57:24,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-09 08:57:24,880 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:24,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:24,916 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2021-11-09 08:57:24,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 08:57:24,917 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-09 08:57:24,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:24,918 INFO L225 Difference]: With dead ends: 84 [2021-11-09 08:57:24,918 INFO L226 Difference]: Without dead ends: 83 [2021-11-09 08:57:24,918 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-09 08:57:24,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-09 08:57:24,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2021-11-09 08:57:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 1.025) internal successors, (82), 81 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:24,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2021-11-09 08:57:24,922 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 73 [2021-11-09 08:57:24,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:24,923 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2021-11-09 08:57:24,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:24,923 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2021-11-09 08:57:24,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-09 08:57:24,924 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:24,924 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 1, 1] [2021-11-09 08:57:24,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:25,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-09 08:57:25,138 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:25,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:25,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1210967059, now seen corresponding path program 10 times [2021-11-09 08:57:25,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:25,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226411324] [2021-11-09 08:57:25,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:25,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:25,267 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:25,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:25,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226411324] [2021-11-09 08:57:25,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226411324] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:25,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216596814] [2021-11-09 08:57:25,268 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:57:25,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:25,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:25,270 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:25,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-09 08:57:25,537 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:57:25,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:25,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 08:57:25,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:25,729 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:25,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216596814] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:25,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:25,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-11-09 08:57:25,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470276225] [2021-11-09 08:57:25,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-09 08:57:25,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:25,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-09 08:57:25,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-09 08:57:25,732 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:25,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:25,763 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2021-11-09 08:57:25,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 08:57:25,768 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-09 08:57:25,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:25,769 INFO L225 Difference]: With dead ends: 86 [2021-11-09 08:57:25,769 INFO L226 Difference]: Without dead ends: 85 [2021-11-09 08:57:25,770 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-09 08:57:25,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-09 08:57:25,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-09 08:57:25,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 83 states have (on average 1.0240963855421688) internal successors, (85), 84 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:25,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2021-11-09 08:57:25,774 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 76 [2021-11-09 08:57:25,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:25,775 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 85 transitions. [2021-11-09 08:57:25,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:25,775 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2021-11-09 08:57:25,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-09 08:57:25,776 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:25,776 INFO L513 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1] [2021-11-09 08:57:25,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:25,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-09 08:57:25,990 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:25,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:25,990 INFO L85 PathProgramCache]: Analyzing trace with hash 141549617, now seen corresponding path program 11 times [2021-11-09 08:57:25,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:25,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528252350] [2021-11-09 08:57:25,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:25,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:26,116 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:26,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:26,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528252350] [2021-11-09 08:57:26,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528252350] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:26,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694427396] [2021-11-09 08:57:26,117 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:57:26,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:26,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:26,118 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:26,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-09 08:57:26,479 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-11-09 08:57:26,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:26,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-09 08:57:26,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:26,691 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:26,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694427396] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:26,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:26,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-11-09 08:57:26,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424776402] [2021-11-09 08:57:26,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-09 08:57:26,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:26,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-09 08:57:26,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-09 08:57:26,694 INFO L87 Difference]: Start difference. First operand 85 states and 85 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:26,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:26,732 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2021-11-09 08:57:26,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 08:57:26,733 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-09 08:57:26,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:26,734 INFO L225 Difference]: With dead ends: 91 [2021-11-09 08:57:26,734 INFO L226 Difference]: Without dead ends: 90 [2021-11-09 08:57:26,734 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-09 08:57:26,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-09 08:57:26,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2021-11-09 08:57:26,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 87 states have (on average 1.0229885057471264) internal successors, (89), 88 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:26,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2021-11-09 08:57:26,738 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 80 [2021-11-09 08:57:26,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:26,739 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2021-11-09 08:57:26,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:26,739 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2021-11-09 08:57:26,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 08:57:26,740 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:26,740 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 1, 1] [2021-11-09 08:57:26,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:26,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-09 08:57:26,954 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:26,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:26,954 INFO L85 PathProgramCache]: Analyzing trace with hash -753200867, now seen corresponding path program 11 times [2021-11-09 08:57:26,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:26,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237348151] [2021-11-09 08:57:26,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:26,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:27,091 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:27,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:27,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237348151] [2021-11-09 08:57:27,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237348151] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:27,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213995141] [2021-11-09 08:57:27,092 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:57:27,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:27,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:27,093 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:27,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-09 08:57:27,427 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-11-09 08:57:27,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:27,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-09 08:57:27,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:27,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213995141] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:27,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:27,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-11-09 08:57:27,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915311094] [2021-11-09 08:57:27,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-09 08:57:27,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:27,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-09 08:57:27,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-09 08:57:27,722 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:27,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:27,759 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2021-11-09 08:57:27,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 08:57:27,760 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 08:57:27,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:27,761 INFO L225 Difference]: With dead ends: 93 [2021-11-09 08:57:27,761 INFO L226 Difference]: Without dead ends: 92 [2021-11-09 08:57:27,762 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-09 08:57:27,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-09 08:57:27,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-09 08:57:27,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 90 states have (on average 1.0222222222222221) internal successors, (92), 91 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2021-11-09 08:57:27,766 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 83 [2021-11-09 08:57:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:27,766 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2021-11-09 08:57:27,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:27,767 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2021-11-09 08:57:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-09 08:57:27,768 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:27,768 INFO L513 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1] [2021-11-09 08:57:27,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:27,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-09 08:57:27,982 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:27,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:27,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1092960927, now seen corresponding path program 12 times [2021-11-09 08:57:27,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:27,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873937837] [2021-11-09 08:57:27,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:27,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:28,123 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:28,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:28,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873937837] [2021-11-09 08:57:28,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873937837] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:28,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808201797] [2021-11-09 08:57:28,124 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:57:28,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:28,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:28,125 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:28,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-09 08:57:28,494 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-11-09 08:57:28,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:28,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-09 08:57:28,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:28,771 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:28,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808201797] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:28,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:28,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-11-09 08:57:28,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124859707] [2021-11-09 08:57:28,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-09 08:57:28,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:28,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-09 08:57:28,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-09 08:57:28,774 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:28,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:28,819 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2021-11-09 08:57:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 08:57:28,820 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-09 08:57:28,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:28,821 INFO L225 Difference]: With dead ends: 98 [2021-11-09 08:57:28,821 INFO L226 Difference]: Without dead ends: 97 [2021-11-09 08:57:28,823 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-09 08:57:28,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-09 08:57:28,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2021-11-09 08:57:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 94 states have (on average 1.0212765957446808) internal successors, (96), 95 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2021-11-09 08:57:28,828 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 87 [2021-11-09 08:57:28,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:28,828 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2021-11-09 08:57:28,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2021-11-09 08:57:28,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-09 08:57:28,830 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:28,830 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 1, 1] [2021-11-09 08:57:28,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-11-09 08:57:29,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-09 08:57:29,047 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:29,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:29,047 INFO L85 PathProgramCache]: Analyzing trace with hash -251861523, now seen corresponding path program 12 times [2021-11-09 08:57:29,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:29,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998484997] [2021-11-09 08:57:29,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:29,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:29,192 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 522 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:29,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:29,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998484997] [2021-11-09 08:57:29,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998484997] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:29,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695364825] [2021-11-09 08:57:29,193 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:57:29,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:29,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:29,194 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:29,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-09 08:57:29,699 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-11-09 08:57:29,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:29,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-09 08:57:29,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 522 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:29,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695364825] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:29,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:29,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-11-09 08:57:29,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005091757] [2021-11-09 08:57:29,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-09 08:57:29,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:29,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-09 08:57:29,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-09 08:57:29,960 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:29,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:29,996 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2021-11-09 08:57:29,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 08:57:29,997 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-09 08:57:29,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:29,998 INFO L225 Difference]: With dead ends: 100 [2021-11-09 08:57:29,998 INFO L226 Difference]: Without dead ends: 99 [2021-11-09 08:57:29,999 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-09 08:57:30,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-09 08:57:30,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-09 08:57:30,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 97 states have (on average 1.0206185567010309) internal successors, (99), 98 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:30,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2021-11-09 08:57:30,004 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 90 [2021-11-09 08:57:30,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:30,004 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2021-11-09 08:57:30,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:30,005 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2021-11-09 08:57:30,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-09 08:57:30,005 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:30,006 INFO L513 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1] [2021-11-09 08:57:30,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:30,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:30,222 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:30,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:30,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1155159503, now seen corresponding path program 13 times [2021-11-09 08:57:30,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:30,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882969231] [2021-11-09 08:57:30,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:30,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:30,378 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:30,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:30,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882969231] [2021-11-09 08:57:30,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882969231] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:30,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574923766] [2021-11-09 08:57:30,378 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:57:30,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:30,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:30,381 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:30,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-09 08:57:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:30,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-09 08:57:30,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:31,127 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:31,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574923766] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:31,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:31,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-11-09 08:57:31,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378887500] [2021-11-09 08:57:31,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-09 08:57:31,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:31,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-09 08:57:31,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:57:31,129 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand has 16 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:31,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:31,169 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2021-11-09 08:57:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-09 08:57:31,169 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-09 08:57:31,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:31,170 INFO L225 Difference]: With dead ends: 105 [2021-11-09 08:57:31,170 INFO L226 Difference]: Without dead ends: 104 [2021-11-09 08:57:31,171 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:57:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-09 08:57:31,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2021-11-09 08:57:31,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 101 states have (on average 1.0198019801980198) internal successors, (103), 102 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:31,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2021-11-09 08:57:31,175 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 94 [2021-11-09 08:57:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:31,176 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2021-11-09 08:57:31,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:31,176 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2021-11-09 08:57:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-09 08:57:31,177 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:31,177 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 1, 1] [2021-11-09 08:57:31,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:31,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-09 08:57:31,398 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:31,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:31,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2078734563, now seen corresponding path program 13 times [2021-11-09 08:57:31,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:31,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550609075] [2021-11-09 08:57:31,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:31,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 0 proven. 611 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:31,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:31,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550609075] [2021-11-09 08:57:31,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550609075] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:31,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118448589] [2021-11-09 08:57:31,552 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:57:31,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:31,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:31,554 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:31,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-09 08:57:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:31,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-09 08:57:31,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:32,261 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 0 proven. 611 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:32,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118448589] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:32,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:32,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-11-09 08:57:32,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080618852] [2021-11-09 08:57:32,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-09 08:57:32,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:32,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-09 08:57:32,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:57:32,264 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:32,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:32,311 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2021-11-09 08:57:32,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-09 08:57:32,312 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-09 08:57:32,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:32,313 INFO L225 Difference]: With dead ends: 107 [2021-11-09 08:57:32,313 INFO L226 Difference]: Without dead ends: 106 [2021-11-09 08:57:32,315 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:57:32,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-09 08:57:32,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-11-09 08:57:32,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 104 states have (on average 1.0192307692307692) internal successors, (106), 105 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:32,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2021-11-09 08:57:32,321 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 97 [2021-11-09 08:57:32,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:32,321 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2021-11-09 08:57:32,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:32,321 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2021-11-09 08:57:32,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-09 08:57:32,322 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:32,323 INFO L513 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1] [2021-11-09 08:57:32,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:32,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-11-09 08:57:32,546 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:32,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:32,546 INFO L85 PathProgramCache]: Analyzing trace with hash 871215969, now seen corresponding path program 14 times [2021-11-09 08:57:32,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:32,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220908322] [2021-11-09 08:57:32,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:32,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:32,698 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 0 proven. 665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:32,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:32,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220908322] [2021-11-09 08:57:32,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220908322] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:32,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943062913] [2021-11-09 08:57:32,699 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:57:32,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:32,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:32,703 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:32,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-09 08:57:33,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:57:33,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:33,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-09 08:57:33,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:33,446 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 0 proven. 665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:33,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943062913] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:33,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:33,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-11-09 08:57:33,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907668428] [2021-11-09 08:57:33,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-09 08:57:33,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:33,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-09 08:57:33,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-09 08:57:33,449 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 17 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:33,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:33,490 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2021-11-09 08:57:33,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:57:33,490 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-09 08:57:33,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:33,491 INFO L225 Difference]: With dead ends: 112 [2021-11-09 08:57:33,491 INFO L226 Difference]: Without dead ends: 111 [2021-11-09 08:57:33,493 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-09 08:57:33,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-09 08:57:33,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2021-11-09 08:57:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 109 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2021-11-09 08:57:33,499 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 101 [2021-11-09 08:57:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:33,500 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2021-11-09 08:57:33,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2021-11-09 08:57:33,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-09 08:57:33,501 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:33,501 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 1, 1] [2021-11-09 08:57:33,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:33,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:33,718 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:33,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:33,718 INFO L85 PathProgramCache]: Analyzing trace with hash -92393491, now seen corresponding path program 14 times [2021-11-09 08:57:33,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:33,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065034436] [2021-11-09 08:57:33,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:33,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:33,892 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 707 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:33,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:33,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065034436] [2021-11-09 08:57:33,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065034436] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:33,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329920622] [2021-11-09 08:57:33,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:57:33,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:33,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:33,895 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:33,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-09 08:57:34,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:57:34,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:34,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-09 08:57:34,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:34,641 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 707 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:34,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329920622] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:34,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:34,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-11-09 08:57:34,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124765282] [2021-11-09 08:57:34,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-09 08:57:34,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:34,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-09 08:57:34,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-09 08:57:34,643 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand has 17 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:34,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:34,690 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2021-11-09 08:57:34,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:57:34,690 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-09 08:57:34,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:34,692 INFO L225 Difference]: With dead ends: 114 [2021-11-09 08:57:34,692 INFO L226 Difference]: Without dead ends: 113 [2021-11-09 08:57:34,692 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-09 08:57:34,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-09 08:57:34,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-11-09 08:57:34,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.018018018018018) internal successors, (113), 112 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:34,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2021-11-09 08:57:34,697 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 104 [2021-11-09 08:57:34,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:34,698 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2021-11-09 08:57:34,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:34,698 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2021-11-09 08:57:34,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-09 08:57:34,699 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:34,699 INFO L513 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1] [2021-11-09 08:57:34,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:34,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:34,914 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:34,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:34,914 INFO L85 PathProgramCache]: Analyzing trace with hash 787608625, now seen corresponding path program 15 times [2021-11-09 08:57:34,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:34,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415058090] [2021-11-09 08:57:34,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:34,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:35,115 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:35,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:35,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415058090] [2021-11-09 08:57:35,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415058090] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:35,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794670579] [2021-11-09 08:57:35,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:57:35,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:35,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:35,117 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:35,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-09 08:57:35,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-11-09 08:57:35,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:35,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-09 08:57:35,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:35,946 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:35,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794670579] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:35,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:35,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-11-09 08:57:35,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214948452] [2021-11-09 08:57:35,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-09 08:57:35,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:35,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-09 08:57:35,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-09 08:57:35,949 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand has 18 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:35,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:35,991 INFO L93 Difference]: Finished difference Result 119 states and 119 transitions. [2021-11-09 08:57:35,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:57:35,992 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-09 08:57:35,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:35,993 INFO L225 Difference]: With dead ends: 119 [2021-11-09 08:57:35,993 INFO L226 Difference]: Without dead ends: 118 [2021-11-09 08:57:35,993 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-09 08:57:35,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-09 08:57:35,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2021-11-09 08:57:35,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 115 states have (on average 1.017391304347826) internal successors, (117), 116 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:35,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2021-11-09 08:57:35,998 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 108 [2021-11-09 08:57:35,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:35,998 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2021-11-09 08:57:35,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:35,999 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2021-11-09 08:57:35,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-09 08:57:35,999 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:35,999 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 1, 1] [2021-11-09 08:57:36,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:36,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-09 08:57:36,214 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:36,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:36,214 INFO L85 PathProgramCache]: Analyzing trace with hash 242253085, now seen corresponding path program 15 times [2021-11-09 08:57:36,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:36,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591066389] [2021-11-09 08:57:36,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:36,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 0 proven. 810 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:36,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:36,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591066389] [2021-11-09 08:57:36,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591066389] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:36,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96357721] [2021-11-09 08:57:36,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:57:36,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:36,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:36,422 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:36,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-09 08:57:36,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-11-09 08:57:36,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:36,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-09 08:57:36,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:37,273 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 0 proven. 810 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:37,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96357721] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:37,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:37,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-11-09 08:57:37,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613685782] [2021-11-09 08:57:37,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-09 08:57:37,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:37,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-09 08:57:37,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-09 08:57:37,275 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 17 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:37,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:37,333 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2021-11-09 08:57:37,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:57:37,333 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 17 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-11-09 08:57:37,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:37,334 INFO L225 Difference]: With dead ends: 121 [2021-11-09 08:57:37,334 INFO L226 Difference]: Without dead ends: 120 [2021-11-09 08:57:37,335 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-09 08:57:37,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-09 08:57:37,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-11-09 08:57:37,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 118 states have (on average 1.0169491525423728) internal successors, (120), 119 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:37,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2021-11-09 08:57:37,343 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 111 [2021-11-09 08:57:37,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:37,344 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2021-11-09 08:57:37,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 17 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:37,344 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2021-11-09 08:57:37,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-09 08:57:37,344 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:37,344 INFO L513 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1] [2021-11-09 08:57:37,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:37,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-09 08:57:37,545 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:37,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:37,545 INFO L85 PathProgramCache]: Analyzing trace with hash 966404449, now seen corresponding path program 16 times [2021-11-09 08:57:37,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:37,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192684892] [2021-11-09 08:57:37,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:37,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 872 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:37,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:37,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192684892] [2021-11-09 08:57:37,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192684892] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:37,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807508771] [2021-11-09 08:57:37,722 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:57:37,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:37,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:37,726 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:37,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-09 08:57:38,422 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:57:38,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:38,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-09 08:57:38,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:38,815 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 872 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:38,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807508771] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:38,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:38,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-11-09 08:57:38,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602615189] [2021-11-09 08:57:38,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-09 08:57:38,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:38,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-09 08:57:38,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-09 08:57:38,817 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand has 19 states, 18 states have (on average 6.388888888888889) internal successors, (115), 18 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:38,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:38,876 INFO L93 Difference]: Finished difference Result 126 states and 126 transitions. [2021-11-09 08:57:38,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-09 08:57:38,876 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.388888888888889) internal successors, (115), 18 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-09 08:57:38,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:38,878 INFO L225 Difference]: With dead ends: 126 [2021-11-09 08:57:38,878 INFO L226 Difference]: Without dead ends: 125 [2021-11-09 08:57:38,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-09 08:57:38,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-09 08:57:38,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 124. [2021-11-09 08:57:38,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 122 states have (on average 1.0163934426229508) internal successors, (124), 123 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:38,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2021-11-09 08:57:38,883 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 115 [2021-11-09 08:57:38,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:38,883 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2021-11-09 08:57:38,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.388888888888889) internal successors, (115), 18 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2021-11-09 08:57:38,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-09 08:57:38,887 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:38,887 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 16, 16, 1, 1] [2021-11-09 08:57:38,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:39,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:39,102 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:39,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:39,102 INFO L85 PathProgramCache]: Analyzing trace with hash 989198829, now seen corresponding path program 16 times [2021-11-09 08:57:39,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:39,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238842909] [2021-11-09 08:57:39,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:39,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:39,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:39,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238842909] [2021-11-09 08:57:39,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238842909] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:39,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334025246] [2021-11-09 08:57:39,313 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:57:39,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:39,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:39,314 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:39,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-09 08:57:39,929 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:57:39,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:39,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-09 08:57:39,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:40,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334025246] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:40,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:40,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-11-09 08:57:40,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302603192] [2021-11-09 08:57:40,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-09 08:57:40,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:40,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-09 08:57:40,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-09 08:57:40,288 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand has 19 states, 18 states have (on average 6.555555555555555) internal successors, (118), 18 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:40,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:40,340 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2021-11-09 08:57:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-09 08:57:40,341 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.555555555555555) internal successors, (118), 18 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-11-09 08:57:40,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:40,342 INFO L225 Difference]: With dead ends: 128 [2021-11-09 08:57:40,342 INFO L226 Difference]: Without dead ends: 127 [2021-11-09 08:57:40,343 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-09 08:57:40,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-09 08:57:40,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-11-09 08:57:40,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 125 states have (on average 1.016) internal successors, (127), 126 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:40,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2021-11-09 08:57:40,347 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 118 [2021-11-09 08:57:40,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:40,347 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2021-11-09 08:57:40,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.555555555555555) internal successors, (118), 18 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:40,348 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2021-11-09 08:57:40,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-09 08:57:40,348 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:40,348 INFO L513 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1] [2021-11-09 08:57:40,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:40,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-09 08:57:40,562 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:40,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:40,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2054471217, now seen corresponding path program 17 times [2021-11-09 08:57:40,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:40,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660615354] [2021-11-09 08:57:40,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:40,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 0 proven. 986 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:40,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:40,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660615354] [2021-11-09 08:57:40,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660615354] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:40,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371814298] [2021-11-09 08:57:40,772 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:57:40,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:40,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:40,789 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:40,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-09 08:57:41,416 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-11-09 08:57:41,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:41,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-09 08:57:41,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:41,738 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 0 proven. 986 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:41,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371814298] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:41,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:41,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-11-09 08:57:41,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636085398] [2021-11-09 08:57:41,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-09 08:57:41,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:41,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-09 08:57:41,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:57:41,740 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand has 20 states, 19 states have (on average 6.421052631578948) internal successors, (122), 19 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:41,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:41,796 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2021-11-09 08:57:41,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-09 08:57:41,797 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.421052631578948) internal successors, (122), 19 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-09 08:57:41,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:41,798 INFO L225 Difference]: With dead ends: 133 [2021-11-09 08:57:41,798 INFO L226 Difference]: Without dead ends: 132 [2021-11-09 08:57:41,799 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:57:41,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-09 08:57:41,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2021-11-09 08:57:41,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 129 states have (on average 1.0155038759689923) internal successors, (131), 130 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2021-11-09 08:57:41,803 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 122 [2021-11-09 08:57:41,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:41,804 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2021-11-09 08:57:41,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.421052631578948) internal successors, (122), 19 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:41,804 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2021-11-09 08:57:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-09 08:57:41,805 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:41,805 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 17, 17, 1, 1] [2021-11-09 08:57:41,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-11-09 08:57:42,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-09 08:57:42,030 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:42,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:42,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1468101405, now seen corresponding path program 17 times [2021-11-09 08:57:42,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:42,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120334881] [2021-11-09 08:57:42,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:42,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:42,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1037 backedges. 0 proven. 1037 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:42,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:42,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120334881] [2021-11-09 08:57:42,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120334881] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:42,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893308401] [2021-11-09 08:57:42,251 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:57:42,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:42,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:42,254 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:42,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-09 08:57:42,947 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-11-09 08:57:42,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:42,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-09 08:57:42,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1037 backedges. 0 proven. 1037 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:43,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893308401] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:43,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:43,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-11-09 08:57:43,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488491107] [2021-11-09 08:57:43,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-09 08:57:43,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:43,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-09 08:57:43,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:57:43,267 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand has 20 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:43,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:43,325 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2021-11-09 08:57:43,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-09 08:57:43,325 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-09 08:57:43,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:43,327 INFO L225 Difference]: With dead ends: 135 [2021-11-09 08:57:43,327 INFO L226 Difference]: Without dead ends: 134 [2021-11-09 08:57:43,327 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:57:43,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-09 08:57:43,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-09 08:57:43,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 132 states have (on average 1.0151515151515151) internal successors, (134), 133 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2021-11-09 08:57:43,332 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 125 [2021-11-09 08:57:43,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:43,332 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2021-11-09 08:57:43,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:43,333 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2021-11-09 08:57:43,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-09 08:57:43,333 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:43,334 INFO L513 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1] [2021-11-09 08:57:43,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-11-09 08:57:43,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-09 08:57:43,558 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:43,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:43,558 INFO L85 PathProgramCache]: Analyzing trace with hash 88088417, now seen corresponding path program 18 times [2021-11-09 08:57:43,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:43,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82496814] [2021-11-09 08:57:43,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:43,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:43,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:43,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:43,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82496814] [2021-11-09 08:57:43,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82496814] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:43,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728552119] [2021-11-09 08:57:43,769 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:57:43,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:43,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:43,772 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:43,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-09 08:57:44,488 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-11-09 08:57:44,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:44,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-09 08:57:44,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:44,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:44,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728552119] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:44,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:44,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-11-09 08:57:44,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60101641] [2021-11-09 08:57:44,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-09 08:57:44,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:44,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-09 08:57:44,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-09 08:57:44,835 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand has 21 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:44,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:44,904 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2021-11-09 08:57:44,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-09 08:57:44,905 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-11-09 08:57:44,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:44,906 INFO L225 Difference]: With dead ends: 140 [2021-11-09 08:57:44,906 INFO L226 Difference]: Without dead ends: 139 [2021-11-09 08:57:44,907 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-09 08:57:44,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-09 08:57:44,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 138. [2021-11-09 08:57:44,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 136 states have (on average 1.0147058823529411) internal successors, (138), 137 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:44,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2021-11-09 08:57:44,912 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 129 [2021-11-09 08:57:44,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:44,913 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2021-11-09 08:57:44,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:44,913 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2021-11-09 08:57:44,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-09 08:57:44,914 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:44,914 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 18, 18, 18, 1, 1] [2021-11-09 08:57:44,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2021-11-09 08:57:45,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-11-09 08:57:45,131 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:45,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash 17056749, now seen corresponding path program 18 times [2021-11-09 08:57:45,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:45,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147720473] [2021-11-09 08:57:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:45,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 0 proven. 1161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:45,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:45,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147720473] [2021-11-09 08:57:45,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147720473] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:45,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382899441] [2021-11-09 08:57:45,359 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:57:45,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:45,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:45,362 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:45,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-09 08:57:46,411 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-11-09 08:57:46,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:46,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-09 08:57:46,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:46,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 0 proven. 1161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:46,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382899441] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:46,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:46,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-11-09 08:57:46,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6566194] [2021-11-09 08:57:46,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-09 08:57:46,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:46,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-09 08:57:46,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-09 08:57:46,769 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand has 21 states, 20 states have (on average 6.6) internal successors, (132), 20 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:46,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:46,829 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2021-11-09 08:57:46,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-09 08:57:46,830 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.6) internal successors, (132), 20 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-11-09 08:57:46,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:46,831 INFO L225 Difference]: With dead ends: 142 [2021-11-09 08:57:46,831 INFO L226 Difference]: Without dead ends: 141 [2021-11-09 08:57:46,832 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-09 08:57:46,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-09 08:57:46,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-11-09 08:57:46,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 139 states have (on average 1.014388489208633) internal successors, (141), 140 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2021-11-09 08:57:46,836 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 132 [2021-11-09 08:57:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:46,837 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2021-11-09 08:57:46,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.6) internal successors, (132), 20 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2021-11-09 08:57:46,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-09 08:57:46,838 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:46,838 INFO L513 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1] [2021-11-09 08:57:46,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:47,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:47,050 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:47,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:47,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1672607695, now seen corresponding path program 19 times [2021-11-09 08:57:47,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:47,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734198835] [2021-11-09 08:57:47,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:47,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:47,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 0 proven. 1235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:47,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:47,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734198835] [2021-11-09 08:57:47,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734198835] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:47,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697094166] [2021-11-09 08:57:47,303 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:57:47,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:47,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:47,306 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:47,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-11-09 08:57:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:48,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 08:57:48,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:48,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 0 proven. 1235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:48,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697094166] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:48,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:48,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-11-09 08:57:48,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071566577] [2021-11-09 08:57:48,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-09 08:57:48,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:48,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-09 08:57:48,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-09 08:57:48,423 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand has 22 states, 21 states have (on average 6.476190476190476) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:48,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:48,466 INFO L93 Difference]: Finished difference Result 147 states and 147 transitions. [2021-11-09 08:57:48,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-09 08:57:48,466 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.476190476190476) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-09 08:57:48,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:48,467 INFO L225 Difference]: With dead ends: 147 [2021-11-09 08:57:48,468 INFO L226 Difference]: Without dead ends: 146 [2021-11-09 08:57:48,468 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-09 08:57:48,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-09 08:57:48,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 145. [2021-11-09 08:57:48,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 143 states have (on average 1.013986013986014) internal successors, (145), 144 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:48,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 145 transitions. [2021-11-09 08:57:48,474 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 145 transitions. Word has length 136 [2021-11-09 08:57:48,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:48,474 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 145 transitions. [2021-11-09 08:57:48,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.476190476190476) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:48,474 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 145 transitions. [2021-11-09 08:57:48,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-09 08:57:48,475 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:48,476 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 19, 19, 1, 1] [2021-11-09 08:57:48,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:48,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:48,702 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:48,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:48,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1554770205, now seen corresponding path program 19 times [2021-11-09 08:57:48,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:48,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311792975] [2021-11-09 08:57:48,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:48,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:48,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 1292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:48,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:48,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311792975] [2021-11-09 08:57:48,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311792975] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:48,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630600960] [2021-11-09 08:57:48,996 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:57:48,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:48,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:48,997 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:49,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-09 08:57:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:49,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 08:57:49,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 1292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:50,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630600960] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:50,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:50,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-11-09 08:57:50,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035814133] [2021-11-09 08:57:50,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-09 08:57:50,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:50,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-09 08:57:50,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-09 08:57:50,184 INFO L87 Difference]: Start difference. First operand 145 states and 145 transitions. Second operand has 22 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:50,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:50,249 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2021-11-09 08:57:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-09 08:57:50,249 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-09 08:57:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:50,251 INFO L225 Difference]: With dead ends: 149 [2021-11-09 08:57:50,251 INFO L226 Difference]: Without dead ends: 148 [2021-11-09 08:57:50,251 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-09 08:57:50,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-09 08:57:50,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-11-09 08:57:50,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 146 states have (on average 1.0136986301369864) internal successors, (148), 147 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:50,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 148 transitions. [2021-11-09 08:57:50,255 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 148 transitions. Word has length 139 [2021-11-09 08:57:50,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:50,256 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 148 transitions. [2021-11-09 08:57:50,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:50,256 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 148 transitions. [2021-11-09 08:57:50,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-09 08:57:50,257 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:50,257 INFO L513 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1] [2021-11-09 08:57:50,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:50,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:50,478 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:50,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:50,478 INFO L85 PathProgramCache]: Analyzing trace with hash -465595039, now seen corresponding path program 20 times [2021-11-09 08:57:50,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:50,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431615737] [2021-11-09 08:57:50,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:50,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:50,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:50,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:50,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431615737] [2021-11-09 08:57:50,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431615737] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:50,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227951814] [2021-11-09 08:57:50,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:57:50,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:50,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:50,736 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:50,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-09 08:57:51,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:57:51,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:51,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-09 08:57:51,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:52,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:52,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227951814] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:52,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:52,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-11-09 08:57:52,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453012344] [2021-11-09 08:57:52,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-09 08:57:52,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:52,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-09 08:57:52,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-09 08:57:52,006 INFO L87 Difference]: Start difference. First operand 148 states and 148 transitions. Second operand has 23 states, 22 states have (on average 6.5) internal successors, (143), 22 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:52,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:52,059 INFO L93 Difference]: Finished difference Result 154 states and 154 transitions. [2021-11-09 08:57:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-09 08:57:52,060 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.5) internal successors, (143), 22 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-09 08:57:52,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:52,061 INFO L225 Difference]: With dead ends: 154 [2021-11-09 08:57:52,061 INFO L226 Difference]: Without dead ends: 153 [2021-11-09 08:57:52,061 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-09 08:57:52,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-11-09 08:57:52,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 152. [2021-11-09 08:57:52,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.0133333333333334) internal successors, (152), 151 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:52,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2021-11-09 08:57:52,067 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 143 [2021-11-09 08:57:52,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:52,067 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2021-11-09 08:57:52,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.5) internal successors, (143), 22 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:52,068 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2021-11-09 08:57:52,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-09 08:57:52,069 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:52,069 INFO L513 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 20, 20, 20, 1, 1] [2021-11-09 08:57:52,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:52,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:52,290 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:52,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:52,290 INFO L85 PathProgramCache]: Analyzing trace with hash -2092364307, now seen corresponding path program 20 times [2021-11-09 08:57:52,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:52,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248190703] [2021-11-09 08:57:52,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:52,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:52,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:52,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248190703] [2021-11-09 08:57:52,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248190703] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:52,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101874000] [2021-11-09 08:57:52,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:57:52,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:52,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:52,568 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:52,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-11-09 08:57:53,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:57:53,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:53,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-09 08:57:53,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:53,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:53,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101874000] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:53,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:53,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-11-09 08:57:53,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600797948] [2021-11-09 08:57:53,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-09 08:57:53,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:53,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-09 08:57:53,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-09 08:57:53,838 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand has 23 states, 22 states have (on average 6.636363636363637) internal successors, (146), 22 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:53,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:53,891 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2021-11-09 08:57:53,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-09 08:57:53,891 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.636363636363637) internal successors, (146), 22 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2021-11-09 08:57:53,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:53,892 INFO L225 Difference]: With dead ends: 156 [2021-11-09 08:57:53,892 INFO L226 Difference]: Without dead ends: 155 [2021-11-09 08:57:53,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-09 08:57:53,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-11-09 08:57:53,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-11-09 08:57:53,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.0130718954248366) internal successors, (155), 154 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:53,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2021-11-09 08:57:53,897 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 146 [2021-11-09 08:57:53,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:53,898 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2021-11-09 08:57:53,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.636363636363637) internal successors, (146), 22 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:53,898 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2021-11-09 08:57:53,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-09 08:57:53,898 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:53,899 INFO L513 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1] [2021-11-09 08:57:53,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:54,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-11-09 08:57:54,099 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:54,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:54,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2065551921, now seen corresponding path program 21 times [2021-11-09 08:57:54,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:54,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28551550] [2021-11-09 08:57:54,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:54,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 1512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:54,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:54,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28551550] [2021-11-09 08:57:54,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28551550] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:54,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639938555] [2021-11-09 08:57:54,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:57:54,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:54,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:54,420 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:54,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-11-09 08:57:55,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-11-09 08:57:55,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:55,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-09 08:57:55,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:55,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 1512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:55,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639938555] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:55,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:55,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-11-09 08:57:55,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278140283] [2021-11-09 08:57:55,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 08:57:55,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:55,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 08:57:55,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:57:55,751 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:55,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:55,817 INFO L93 Difference]: Finished difference Result 161 states and 161 transitions. [2021-11-09 08:57:55,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 08:57:55,818 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2021-11-09 08:57:55,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:55,819 INFO L225 Difference]: With dead ends: 161 [2021-11-09 08:57:55,819 INFO L226 Difference]: Without dead ends: 160 [2021-11-09 08:57:55,819 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:57:55,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-11-09 08:57:55,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2021-11-09 08:57:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 157 states have (on average 1.0127388535031847) internal successors, (159), 158 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:55,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 159 transitions. [2021-11-09 08:57:55,824 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 159 transitions. Word has length 150 [2021-11-09 08:57:55,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:55,824 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 159 transitions. [2021-11-09 08:57:55,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:55,825 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 159 transitions. [2021-11-09 08:57:55,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-09 08:57:55,826 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:55,826 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 21, 21, 21, 1, 1] [2021-11-09 08:57:55,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:56,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-09 08:57:56,046 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:56,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:56,047 INFO L85 PathProgramCache]: Analyzing trace with hash 860872477, now seen corresponding path program 21 times [2021-11-09 08:57:56,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:56,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778291622] [2021-11-09 08:57:56,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:56,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:56,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:56,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778291622] [2021-11-09 08:57:56,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778291622] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:56,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528228576] [2021-11-09 08:57:56,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:57:56,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:56,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:56,385 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:56,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-11-09 08:57:57,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-11-09 08:57:57,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:57,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-09 08:57:57,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:57,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:57,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528228576] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:57,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:57,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-11-09 08:57:57,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262340772] [2021-11-09 08:57:57,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 08:57:57,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:57,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 08:57:57,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:57:57,864 INFO L87 Difference]: Start difference. First operand 159 states and 159 transitions. Second operand has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 23 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:57,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:57:57,940 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2021-11-09 08:57:57,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 08:57:57,941 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 23 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-11-09 08:57:57,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:57:57,942 INFO L225 Difference]: With dead ends: 163 [2021-11-09 08:57:57,942 INFO L226 Difference]: Without dead ends: 162 [2021-11-09 08:57:57,942 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:57:57,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-09 08:57:57,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2021-11-09 08:57:57,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.0125) internal successors, (162), 161 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:57,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2021-11-09 08:57:57,947 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 153 [2021-11-09 08:57:57,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:57:57,948 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2021-11-09 08:57:57,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 23 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:57:57,948 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2021-11-09 08:57:57,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-09 08:57:57,949 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:57:57,949 INFO L513 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1] [2021-11-09 08:57:57,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2021-11-09 08:57:58,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-11-09 08:57:58,154 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:57:58,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:58,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1006144353, now seen corresponding path program 22 times [2021-11-09 08:57:58,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:58,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597970061] [2021-11-09 08:57:58,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:58,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:58,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:58,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:58,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597970061] [2021-11-09 08:57:58,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597970061] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:58,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464913194] [2021-11-09 08:57:58,474 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:57:58,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:58,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:58,482 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:58,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-11-09 08:57:59,751 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:57:59,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:59,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-09 08:57:59,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:00,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464913194] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:00,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:00,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-11-09 08:58:00,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413213562] [2021-11-09 08:58:00,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-09 08:58:00,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:00,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-09 08:58:00,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-09 08:58:00,126 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand has 25 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:00,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:00,199 INFO L93 Difference]: Finished difference Result 168 states and 168 transitions. [2021-11-09 08:58:00,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-09 08:58:00,200 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-11-09 08:58:00,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:00,201 INFO L225 Difference]: With dead ends: 168 [2021-11-09 08:58:00,201 INFO L226 Difference]: Without dead ends: 167 [2021-11-09 08:58:00,203 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-09 08:58:00,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-09 08:58:00,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2021-11-09 08:58:00,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 164 states have (on average 1.0121951219512195) internal successors, (166), 165 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:00,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2021-11-09 08:58:00,218 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 157 [2021-11-09 08:58:00,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:00,219 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2021-11-09 08:58:00,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:00,219 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2021-11-09 08:58:00,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-09 08:58:00,230 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:00,230 INFO L513 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 1, 1] [2021-11-09 08:58:00,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:00,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-11-09 08:58:00,446 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:00,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:00,446 INFO L85 PathProgramCache]: Analyzing trace with hash -530294803, now seen corresponding path program 22 times [2021-11-09 08:58:00,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:00,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644434923] [2021-11-09 08:58:00,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:00,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:00,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:00,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:00,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644434923] [2021-11-09 08:58:00,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644434923] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:00,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452347235] [2021-11-09 08:58:00,774 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:58:00,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:00,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:00,775 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:00,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-11-09 08:58:01,942 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:58:01,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:01,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-09 08:58:01,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:02,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452347235] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:02,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:02,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-11-09 08:58:02,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401813606] [2021-11-09 08:58:02,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-09 08:58:02,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:02,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-09 08:58:02,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-09 08:58:02,367 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 24 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:02,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:02,428 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2021-11-09 08:58:02,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-09 08:58:02,428 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 24 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-11-09 08:58:02,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:02,429 INFO L225 Difference]: With dead ends: 170 [2021-11-09 08:58:02,429 INFO L226 Difference]: Without dead ends: 169 [2021-11-09 08:58:02,430 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-09 08:58:02,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-11-09 08:58:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-11-09 08:58:02,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 167 states have (on average 1.0119760479041917) internal successors, (169), 168 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:02,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 169 transitions. [2021-11-09 08:58:02,435 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 169 transitions. Word has length 160 [2021-11-09 08:58:02,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:02,435 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 169 transitions. [2021-11-09 08:58:02,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 24 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:02,436 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 169 transitions. [2021-11-09 08:58:02,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-09 08:58:02,437 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:02,437 INFO L513 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1] [2021-11-09 08:58:02,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:02,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-11-09 08:58:02,662 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:02,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:02,662 INFO L85 PathProgramCache]: Analyzing trace with hash -444326863, now seen corresponding path program 23 times [2021-11-09 08:58:02,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:02,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818481351] [2021-11-09 08:58:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:02,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:03,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1817 backedges. 0 proven. 1817 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:03,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:03,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818481351] [2021-11-09 08:58:03,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818481351] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:03,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434766005] [2021-11-09 08:58:03,025 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:58:03,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:03,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:03,026 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:03,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-09 08:58:04,203 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-11-09 08:58:04,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:04,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-09 08:58:04,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:04,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1817 backedges. 0 proven. 1817 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:04,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434766005] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:04,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:04,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-11-09 08:58:04,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581266190] [2021-11-09 08:58:04,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-09 08:58:04,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:04,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-09 08:58:04,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-09 08:58:04,710 INFO L87 Difference]: Start difference. First operand 169 states and 169 transitions. Second operand has 26 states, 25 states have (on average 6.56) internal successors, (164), 25 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:04,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:04,775 INFO L93 Difference]: Finished difference Result 175 states and 175 transitions. [2021-11-09 08:58:04,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-09 08:58:04,776 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.56) internal successors, (164), 25 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2021-11-09 08:58:04,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:04,778 INFO L225 Difference]: With dead ends: 175 [2021-11-09 08:58:04,779 INFO L226 Difference]: Without dead ends: 174 [2021-11-09 08:58:04,780 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-09 08:58:04,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-09 08:58:04,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 173. [2021-11-09 08:58:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 171 states have (on average 1.0116959064327486) internal successors, (173), 172 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 173 transitions. [2021-11-09 08:58:04,786 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 173 transitions. Word has length 164 [2021-11-09 08:58:04,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:04,786 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 173 transitions. [2021-11-09 08:58:04,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.56) internal successors, (164), 25 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:04,787 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 173 transitions. [2021-11-09 08:58:04,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-09 08:58:04,788 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:04,789 INFO L513 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 23, 23, 1, 1] [2021-11-09 08:58:04,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-11-09 08:58:05,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:05,007 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:05,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:05,008 INFO L85 PathProgramCache]: Analyzing trace with hash 147674397, now seen corresponding path program 23 times [2021-11-09 08:58:05,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:05,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277741520] [2021-11-09 08:58:05,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:05,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:05,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1886 backedges. 0 proven. 1886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:05,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:05,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277741520] [2021-11-09 08:58:05,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277741520] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:05,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022617797] [2021-11-09 08:58:05,362 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:58:05,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:05,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:05,363 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:05,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-11-09 08:58:06,648 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-11-09 08:58:06,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:06,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-09 08:58:06,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:07,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1886 backedges. 0 proven. 1886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:07,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022617797] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:07,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:07,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-11-09 08:58:07,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761925517] [2021-11-09 08:58:07,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-09 08:58:07,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:07,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-09 08:58:07,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-09 08:58:07,074 INFO L87 Difference]: Start difference. First operand 173 states and 173 transitions. Second operand has 26 states, 25 states have (on average 6.68) internal successors, (167), 25 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:07,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:07,144 INFO L93 Difference]: Finished difference Result 177 states and 177 transitions. [2021-11-09 08:58:07,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-09 08:58:07,144 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.68) internal successors, (167), 25 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2021-11-09 08:58:07,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:07,146 INFO L225 Difference]: With dead ends: 177 [2021-11-09 08:58:07,146 INFO L226 Difference]: Without dead ends: 176 [2021-11-09 08:58:07,146 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-09 08:58:07,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-09 08:58:07,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2021-11-09 08:58:07,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 174 states have (on average 1.0114942528735633) internal successors, (176), 175 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:07,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2021-11-09 08:58:07,151 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 167 [2021-11-09 08:58:07,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:07,152 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2021-11-09 08:58:07,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.68) internal successors, (167), 25 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:07,152 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2021-11-09 08:58:07,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-09 08:58:07,153 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:07,154 INFO L513 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 24, 24, 1, 1] [2021-11-09 08:58:07,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:07,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:07,382 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:07,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:07,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1983184543, now seen corresponding path program 24 times [2021-11-09 08:58:07,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:07,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394720607] [2021-11-09 08:58:07,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:07,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:07,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:07,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:07,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394720607] [2021-11-09 08:58:07,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394720607] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:07,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385912546] [2021-11-09 08:58:07,772 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:58:07,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:07,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:07,773 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:07,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-11-09 08:58:09,023 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-11-09 08:58:09,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:09,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-09 08:58:09,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:09,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:09,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385912546] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:09,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:09,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-11-09 08:58:09,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753404330] [2021-11-09 08:58:09,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-09 08:58:09,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:09,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-09 08:58:09,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-09 08:58:09,510 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand has 27 states, 26 states have (on average 6.576923076923077) internal successors, (171), 26 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:09,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:09,572 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2021-11-09 08:58:09,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-09 08:58:09,574 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 6.576923076923077) internal successors, (171), 26 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-11-09 08:58:09,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:09,575 INFO L225 Difference]: With dead ends: 182 [2021-11-09 08:58:09,575 INFO L226 Difference]: Without dead ends: 181 [2021-11-09 08:58:09,576 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-09 08:58:09,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-09 08:58:09,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 180. [2021-11-09 08:58:09,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 1.0112359550561798) internal successors, (180), 179 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:09,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 180 transitions. [2021-11-09 08:58:09,582 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 180 transitions. Word has length 171 [2021-11-09 08:58:09,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:09,582 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 180 transitions. [2021-11-09 08:58:09,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 6.576923076923077) internal successors, (171), 26 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:09,583 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 180 transitions. [2021-11-09 08:58:09,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-09 08:58:09,584 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:09,584 INFO L513 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 24, 24, 24, 1, 1] [2021-11-09 08:58:09,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:09,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:09,810 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:09,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:09,810 INFO L85 PathProgramCache]: Analyzing trace with hash 519447021, now seen corresponding path program 24 times [2021-11-09 08:58:09,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:09,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790888853] [2021-11-09 08:58:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:09,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:10,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2052 backedges. 0 proven. 2052 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:10,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:10,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790888853] [2021-11-09 08:58:10,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790888853] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:10,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962754518] [2021-11-09 08:58:10,173 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:58:10,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:10,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:10,178 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:10,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-11-09 08:58:11,659 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-11-09 08:58:11,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:11,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-09 08:58:11,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:12,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2052 backedges. 0 proven. 2052 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:12,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962754518] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:12,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:12,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-11-09 08:58:12,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550445168] [2021-11-09 08:58:12,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-09 08:58:12,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:12,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-09 08:58:12,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-09 08:58:12,079 INFO L87 Difference]: Start difference. First operand 180 states and 180 transitions. Second operand has 27 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 26 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:12,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:12,154 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2021-11-09 08:58:12,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-09 08:58:12,154 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 26 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2021-11-09 08:58:12,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:12,155 INFO L225 Difference]: With dead ends: 184 [2021-11-09 08:58:12,155 INFO L226 Difference]: Without dead ends: 183 [2021-11-09 08:58:12,156 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-09 08:58:12,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-09 08:58:12,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-11-09 08:58:12,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 181 states have (on average 1.011049723756906) internal successors, (183), 182 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:12,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 183 transitions. [2021-11-09 08:58:12,161 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 183 transitions. Word has length 174 [2021-11-09 08:58:12,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:12,161 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 183 transitions. [2021-11-09 08:58:12,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 26 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:12,161 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 183 transitions. [2021-11-09 08:58:12,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-09 08:58:12,162 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:12,163 INFO L513 BasicCegarLoop]: trace histogram [26, 25, 25, 25, 25, 25, 25, 1, 1] [2021-11-09 08:58:12,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:12,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:12,363 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:12,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:12,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1843337679, now seen corresponding path program 25 times [2021-11-09 08:58:12,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:12,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183591166] [2021-11-09 08:58:12,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:12,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:12,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 0 proven. 2150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:12,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:12,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183591166] [2021-11-09 08:58:12,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183591166] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:12,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247096347] [2021-11-09 08:58:12,809 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:58:12,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:12,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:12,811 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:12,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-11-09 08:58:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:14,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-09 08:58:14,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 0 proven. 2150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:14,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247096347] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:14,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:14,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-11-09 08:58:14,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165640143] [2021-11-09 08:58:14,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 08:58:14,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:14,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 08:58:14,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-09 08:58:14,847 INFO L87 Difference]: Start difference. First operand 183 states and 183 transitions. Second operand has 28 states, 27 states have (on average 6.592592592592593) internal successors, (178), 27 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:14,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:14,928 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2021-11-09 08:58:14,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-09 08:58:14,929 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.592592592592593) internal successors, (178), 27 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2021-11-09 08:58:14,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:14,930 INFO L225 Difference]: With dead ends: 189 [2021-11-09 08:58:14,930 INFO L226 Difference]: Without dead ends: 188 [2021-11-09 08:58:14,931 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-09 08:58:14,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-09 08:58:14,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 187. [2021-11-09 08:58:14,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 185 states have (on average 1.0108108108108107) internal successors, (187), 186 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:14,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 187 transitions. [2021-11-09 08:58:14,961 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 187 transitions. Word has length 178 [2021-11-09 08:58:14,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:14,961 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 187 transitions. [2021-11-09 08:58:14,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.592592592592593) internal successors, (178), 27 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:14,961 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 187 transitions. [2021-11-09 08:58:14,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-09 08:58:14,962 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:14,962 INFO L513 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 25, 25, 25, 1, 1] [2021-11-09 08:58:15,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:15,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:15,163 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:15,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:15,163 INFO L85 PathProgramCache]: Analyzing trace with hash 579095325, now seen corresponding path program 25 times [2021-11-09 08:58:15,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:15,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375440335] [2021-11-09 08:58:15,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:15,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:15,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2225 backedges. 0 proven. 2225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:15,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:15,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375440335] [2021-11-09 08:58:15,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375440335] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:15,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517230418] [2021-11-09 08:58:15,544 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:58:15,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:15,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:15,548 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:15,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-11-09 08:58:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:17,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-09 08:58:17,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2225 backedges. 0 proven. 2225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:17,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517230418] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:17,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:17,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-11-09 08:58:17,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794932110] [2021-11-09 08:58:17,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 08:58:17,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:17,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 08:58:17,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-09 08:58:17,561 INFO L87 Difference]: Start difference. First operand 187 states and 187 transitions. Second operand has 28 states, 27 states have (on average 6.703703703703703) internal successors, (181), 27 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:17,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:17,622 INFO L93 Difference]: Finished difference Result 191 states and 191 transitions. [2021-11-09 08:58:17,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-09 08:58:17,623 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.703703703703703) internal successors, (181), 27 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2021-11-09 08:58:17,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:17,624 INFO L225 Difference]: With dead ends: 191 [2021-11-09 08:58:17,624 INFO L226 Difference]: Without dead ends: 190 [2021-11-09 08:58:17,624 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-09 08:58:17,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-09 08:58:17,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2021-11-09 08:58:17,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 188 states have (on average 1.0106382978723405) internal successors, (190), 189 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:17,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 190 transitions. [2021-11-09 08:58:17,630 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 190 transitions. Word has length 181 [2021-11-09 08:58:17,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:17,630 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 190 transitions. [2021-11-09 08:58:17,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.703703703703703) internal successors, (181), 27 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:17,631 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 190 transitions. [2021-11-09 08:58:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-09 08:58:17,632 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:17,632 INFO L513 BasicCegarLoop]: trace histogram [27, 26, 26, 26, 26, 26, 26, 1, 1] [2021-11-09 08:58:17,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:17,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-11-09 08:58:17,858 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:17,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:17,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1662449505, now seen corresponding path program 26 times [2021-11-09 08:58:17,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:17,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501218875] [2021-11-09 08:58:17,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:17,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:18,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2327 backedges. 0 proven. 2327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:18,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:18,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501218875] [2021-11-09 08:58:18,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501218875] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:18,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819074182] [2021-11-09 08:58:18,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:58:18,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:18,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:18,263 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:18,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-11-09 08:58:19,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:58:19,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:19,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-09 08:58:19,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2327 backedges. 0 proven. 2327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:20,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819074182] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:20,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:20,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2021-11-09 08:58:20,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127661938] [2021-11-09 08:58:20,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-09 08:58:20,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:20,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-09 08:58:20,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-09 08:58:20,379 INFO L87 Difference]: Start difference. First operand 190 states and 190 transitions. Second operand has 29 states, 28 states have (on average 6.607142857142857) internal successors, (185), 28 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:20,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:20,460 INFO L93 Difference]: Finished difference Result 196 states and 196 transitions. [2021-11-09 08:58:20,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-09 08:58:20,461 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 6.607142857142857) internal successors, (185), 28 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2021-11-09 08:58:20,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:20,462 INFO L225 Difference]: With dead ends: 196 [2021-11-09 08:58:20,462 INFO L226 Difference]: Without dead ends: 195 [2021-11-09 08:58:20,463 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-09 08:58:20,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-09 08:58:20,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2021-11-09 08:58:20,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 192 states have (on average 1.0104166666666667) internal successors, (194), 193 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 194 transitions. [2021-11-09 08:58:20,468 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 194 transitions. Word has length 185 [2021-11-09 08:58:20,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:20,468 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 194 transitions. [2021-11-09 08:58:20,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 6.607142857142857) internal successors, (185), 28 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:20,469 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 194 transitions. [2021-11-09 08:58:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-09 08:58:20,470 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:20,470 INFO L513 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 26, 26, 26, 1, 1] [2021-11-09 08:58:20,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:20,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-11-09 08:58:20,686 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:20,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:20,686 INFO L85 PathProgramCache]: Analyzing trace with hash 765357037, now seen corresponding path program 26 times [2021-11-09 08:58:20,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:20,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915656814] [2021-11-09 08:58:20,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:20,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:21,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 0 proven. 2405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:21,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:21,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915656814] [2021-11-09 08:58:21,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915656814] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:21,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501209215] [2021-11-09 08:58:21,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:58:21,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:21,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:21,138 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:21,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-11-09 08:58:22,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:58:22,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:22,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-09 08:58:22,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:23,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 0 proven. 2405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:23,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501209215] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:23,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:23,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2021-11-09 08:58:23,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572446942] [2021-11-09 08:58:23,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-09 08:58:23,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:23,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-09 08:58:23,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-09 08:58:23,199 INFO L87 Difference]: Start difference. First operand 194 states and 194 transitions. Second operand has 29 states, 28 states have (on average 6.714285714285714) internal successors, (188), 28 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:23,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:23,255 INFO L93 Difference]: Finished difference Result 198 states and 198 transitions. [2021-11-09 08:58:23,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-09 08:58:23,255 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 6.714285714285714) internal successors, (188), 28 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-09 08:58:23,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:23,256 INFO L225 Difference]: With dead ends: 198 [2021-11-09 08:58:23,256 INFO L226 Difference]: Without dead ends: 197 [2021-11-09 08:58:23,256 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-09 08:58:23,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-09 08:58:23,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-09 08:58:23,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 195 states have (on average 1.0102564102564102) internal successors, (197), 196 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 197 transitions. [2021-11-09 08:58:23,261 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 197 transitions. Word has length 188 [2021-11-09 08:58:23,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:23,262 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 197 transitions. [2021-11-09 08:58:23,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 6.714285714285714) internal successors, (188), 28 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:23,262 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 197 transitions. [2021-11-09 08:58:23,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-09 08:58:23,263 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:23,263 INFO L513 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 1, 1] [2021-11-09 08:58:23,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2021-11-09 08:58:23,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:23,481 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:23,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:23,482 INFO L85 PathProgramCache]: Analyzing trace with hash 529805361, now seen corresponding path program 27 times [2021-11-09 08:58:23,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:23,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168119905] [2021-11-09 08:58:23,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:23,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:23,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2511 backedges. 0 proven. 2511 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:23,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:23,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168119905] [2021-11-09 08:58:23,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168119905] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:23,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772891197] [2021-11-09 08:58:23,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:58:23,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:23,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:23,854 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:23,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-11-09 08:58:25,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-11-09 08:58:25,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:25,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-09 08:58:25,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2511 backedges. 0 proven. 2511 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:25,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772891197] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:25,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:25,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-11-09 08:58:25,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467817250] [2021-11-09 08:58:25,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-09 08:58:25,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:25,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-09 08:58:25,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-09 08:58:25,940 INFO L87 Difference]: Start difference. First operand 197 states and 197 transitions. Second operand has 30 states, 29 states have (on average 6.620689655172414) internal successors, (192), 29 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:26,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:26,032 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2021-11-09 08:58:26,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-09 08:58:26,032 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 6.620689655172414) internal successors, (192), 29 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2021-11-09 08:58:26,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:26,034 INFO L225 Difference]: With dead ends: 203 [2021-11-09 08:58:26,034 INFO L226 Difference]: Without dead ends: 202 [2021-11-09 08:58:26,035 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-09 08:58:26,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-09 08:58:26,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 201. [2021-11-09 08:58:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 199 states have (on average 1.0100502512562815) internal successors, (201), 200 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:26,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 201 transitions. [2021-11-09 08:58:26,041 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 201 transitions. Word has length 192 [2021-11-09 08:58:26,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:26,041 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 201 transitions. [2021-11-09 08:58:26,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 6.620689655172414) internal successors, (192), 29 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:26,041 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 201 transitions. [2021-11-09 08:58:26,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-09 08:58:26,043 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:26,043 INFO L513 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 27, 27, 27, 1, 1] [2021-11-09 08:58:26,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:26,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:26,258 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:26,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:26,258 INFO L85 PathProgramCache]: Analyzing trace with hash -573259491, now seen corresponding path program 27 times [2021-11-09 08:58:26,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:26,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849183660] [2021-11-09 08:58:26,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:26,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:26,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2592 backedges. 0 proven. 2592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:26,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:26,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849183660] [2021-11-09 08:58:26,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849183660] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:26,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827246698] [2021-11-09 08:58:26,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:58:26,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:26,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:26,732 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:26,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-11-09 08:58:28,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-11-09 08:58:28,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:28,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-09 08:58:28,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:29,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2592 backedges. 0 proven. 2592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:29,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827246698] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:29,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:29,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-11-09 08:58:29,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632680783] [2021-11-09 08:58:29,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-09 08:58:29,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:29,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-09 08:58:29,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-09 08:58:29,125 INFO L87 Difference]: Start difference. First operand 201 states and 201 transitions. Second operand has 30 states, 29 states have (on average 6.724137931034483) internal successors, (195), 29 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:29,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:29,204 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2021-11-09 08:58:29,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-09 08:58:29,204 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 6.724137931034483) internal successors, (195), 29 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2021-11-09 08:58:29,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:29,205 INFO L225 Difference]: With dead ends: 205 [2021-11-09 08:58:29,205 INFO L226 Difference]: Without dead ends: 204 [2021-11-09 08:58:29,206 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-09 08:58:29,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-09 08:58:29,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2021-11-09 08:58:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 202 states have (on average 1.00990099009901) internal successors, (204), 203 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 204 transitions. [2021-11-09 08:58:29,213 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 204 transitions. Word has length 195 [2021-11-09 08:58:29,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:29,213 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 204 transitions. [2021-11-09 08:58:29,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 6.724137931034483) internal successors, (195), 29 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:29,214 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 204 transitions. [2021-11-09 08:58:29,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-09 08:58:29,215 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:29,215 INFO L513 BasicCegarLoop]: trace histogram [29, 28, 28, 28, 28, 28, 28, 1, 1] [2021-11-09 08:58:29,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:29,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:29,426 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:29,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:29,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1966894433, now seen corresponding path program 28 times [2021-11-09 08:58:29,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:29,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366900258] [2021-11-09 08:58:29,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:29,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:29,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2702 backedges. 0 proven. 2702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:29,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:29,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366900258] [2021-11-09 08:58:29,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366900258] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:29,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967551959] [2021-11-09 08:58:29,860 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:58:29,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:29,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:29,866 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:29,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-11-09 08:58:31,673 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:58:31,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:31,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-09 08:58:31,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:32,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2702 backedges. 0 proven. 2702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:32,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967551959] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:32,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:32,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-11-09 08:58:32,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130139054] [2021-11-09 08:58:32,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-09 08:58:32,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:32,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-09 08:58:32,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-09 08:58:32,238 INFO L87 Difference]: Start difference. First operand 204 states and 204 transitions. Second operand has 31 states, 30 states have (on average 6.633333333333334) internal successors, (199), 30 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:32,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:32,305 INFO L93 Difference]: Finished difference Result 210 states and 210 transitions. [2021-11-09 08:58:32,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-09 08:58:32,306 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 6.633333333333334) internal successors, (199), 30 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2021-11-09 08:58:32,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:32,307 INFO L225 Difference]: With dead ends: 210 [2021-11-09 08:58:32,307 INFO L226 Difference]: Without dead ends: 209 [2021-11-09 08:58:32,307 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-09 08:58:32,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-09 08:58:32,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 208. [2021-11-09 08:58:32,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 206 states have (on average 1.0097087378640777) internal successors, (208), 207 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:32,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 208 transitions. [2021-11-09 08:58:32,311 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 208 transitions. Word has length 199 [2021-11-09 08:58:32,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:32,311 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 208 transitions. [2021-11-09 08:58:32,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 6.633333333333334) internal successors, (199), 30 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:32,311 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 208 transitions. [2021-11-09 08:58:32,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-09 08:58:32,312 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:32,312 INFO L513 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 28, 28, 28, 1, 1] [2021-11-09 08:58:32,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2021-11-09 08:58:32,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:32,512 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:32,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:32,513 INFO L85 PathProgramCache]: Analyzing trace with hash -486722067, now seen corresponding path program 28 times [2021-11-09 08:58:32,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:32,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302812751] [2021-11-09 08:58:32,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:32,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:32,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 0 proven. 2786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:32,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:32,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302812751] [2021-11-09 08:58:32,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302812751] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:32,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142020473] [2021-11-09 08:58:32,977 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:58:32,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:32,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:32,978 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:32,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-11-09 08:58:34,675 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:58:34,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:34,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-09 08:58:34,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 0 proven. 2786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:35,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142020473] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:35,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:35,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-11-09 08:58:35,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168169979] [2021-11-09 08:58:35,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-09 08:58:35,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:35,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-09 08:58:35,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-09 08:58:35,176 INFO L87 Difference]: Start difference. First operand 208 states and 208 transitions. Second operand has 31 states, 30 states have (on average 6.733333333333333) internal successors, (202), 30 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:35,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:35,249 INFO L93 Difference]: Finished difference Result 212 states and 212 transitions. [2021-11-09 08:58:35,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-09 08:58:35,249 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 6.733333333333333) internal successors, (202), 30 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2021-11-09 08:58:35,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:35,250 INFO L225 Difference]: With dead ends: 212 [2021-11-09 08:58:35,251 INFO L226 Difference]: Without dead ends: 211 [2021-11-09 08:58:35,251 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-09 08:58:35,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-11-09 08:58:35,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-11-09 08:58:35,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 209 states have (on average 1.0095693779904307) internal successors, (211), 210 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:35,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 211 transitions. [2021-11-09 08:58:35,257 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 211 transitions. Word has length 202 [2021-11-09 08:58:35,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:35,257 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 211 transitions. [2021-11-09 08:58:35,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 6.733333333333333) internal successors, (202), 30 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:35,258 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 211 transitions. [2021-11-09 08:58:35,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-09 08:58:35,259 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:35,259 INFO L513 BasicCegarLoop]: trace histogram [30, 29, 29, 29, 29, 29, 29, 1, 1] [2021-11-09 08:58:35,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2021-11-09 08:58:35,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:35,470 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:35,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:35,470 INFO L85 PathProgramCache]: Analyzing trace with hash 343800369, now seen corresponding path program 29 times [2021-11-09 08:58:35,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:35,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825566357] [2021-11-09 08:58:35,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:35,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:35,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2900 backedges. 0 proven. 2900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:35,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:35,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825566357] [2021-11-09 08:58:35,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825566357] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:35,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190369388] [2021-11-09 08:58:35,997 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:58:35,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:35,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:36,002 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:36,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-11-09 08:58:37,928 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-11-09 08:58:37,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:37,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-09 08:58:37,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2900 backedges. 0 proven. 2900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:38,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190369388] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:38,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:38,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-11-09 08:58:38,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509310419] [2021-11-09 08:58:38,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-09 08:58:38,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:38,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-09 08:58:38,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-09 08:58:38,527 INFO L87 Difference]: Start difference. First operand 211 states and 211 transitions. Second operand has 32 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:38,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:38,629 INFO L93 Difference]: Finished difference Result 217 states and 217 transitions. [2021-11-09 08:58:38,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-09 08:58:38,630 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2021-11-09 08:58:38,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:38,631 INFO L225 Difference]: With dead ends: 217 [2021-11-09 08:58:38,631 INFO L226 Difference]: Without dead ends: 216 [2021-11-09 08:58:38,632 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-09 08:58:38,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-09 08:58:38,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2021-11-09 08:58:38,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 213 states have (on average 1.0093896713615023) internal successors, (215), 214 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:38,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 215 transitions. [2021-11-09 08:58:38,639 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 215 transitions. Word has length 206 [2021-11-09 08:58:38,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:38,639 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 215 transitions. [2021-11-09 08:58:38,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:38,640 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 215 transitions. [2021-11-09 08:58:38,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-09 08:58:38,641 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:38,641 INFO L513 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 29, 29, 29, 1, 1] [2021-11-09 08:58:38,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:38,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:38,870 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:38,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:38,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1340164323, now seen corresponding path program 29 times [2021-11-09 08:58:38,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:38,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864790649] [2021-11-09 08:58:38,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:38,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2987 backedges. 0 proven. 2987 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:39,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:39,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864790649] [2021-11-09 08:58:39,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864790649] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:39,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333162166] [2021-11-09 08:58:39,320 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:58:39,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:39,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:39,321 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:39,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-11-09 08:58:41,208 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-11-09 08:58:41,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:41,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-09 08:58:41,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2987 backedges. 0 proven. 2987 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:41,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333162166] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:41,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:41,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-11-09 08:58:41,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965117640] [2021-11-09 08:58:41,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-09 08:58:41,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:41,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-09 08:58:41,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-09 08:58:41,708 INFO L87 Difference]: Start difference. First operand 215 states and 215 transitions. Second operand has 32 states, 31 states have (on average 6.741935483870968) internal successors, (209), 31 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:41,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:41,811 INFO L93 Difference]: Finished difference Result 219 states and 219 transitions. [2021-11-09 08:58:41,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-09 08:58:41,812 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.741935483870968) internal successors, (209), 31 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2021-11-09 08:58:41,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:41,814 INFO L225 Difference]: With dead ends: 219 [2021-11-09 08:58:41,814 INFO L226 Difference]: Without dead ends: 218 [2021-11-09 08:58:41,814 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-09 08:58:41,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-09 08:58:41,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2021-11-09 08:58:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 216 states have (on average 1.0092592592592593) internal successors, (218), 217 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:41,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 218 transitions. [2021-11-09 08:58:41,820 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 218 transitions. Word has length 209 [2021-11-09 08:58:41,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:41,821 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 218 transitions. [2021-11-09 08:58:41,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.741935483870968) internal successors, (209), 31 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:41,821 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 218 transitions. [2021-11-09 08:58:41,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-09 08:58:41,822 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:41,823 INFO L513 BasicCegarLoop]: trace histogram [31, 30, 30, 30, 30, 30, 30, 1, 1] [2021-11-09 08:58:41,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:42,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-11-09 08:58:42,050 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:42,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:42,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2053414047, now seen corresponding path program 30 times [2021-11-09 08:58:42,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:42,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753096392] [2021-11-09 08:58:42,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:42,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:42,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 0 proven. 3105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:42,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:42,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753096392] [2021-11-09 08:58:42,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753096392] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:42,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589568413] [2021-11-09 08:58:42,591 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:58:42,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:42,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:42,592 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:42,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-11-09 08:58:44,505 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-11-09 08:58:44,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:44,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-09 08:58:44,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:45,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 0 proven. 3105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:45,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589568413] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:45,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:45,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2021-11-09 08:58:45,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286549919] [2021-11-09 08:58:45,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-09 08:58:45,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:45,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-09 08:58:45,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-09 08:58:45,187 INFO L87 Difference]: Start difference. First operand 218 states and 218 transitions. Second operand has 33 states, 32 states have (on average 6.65625) internal successors, (213), 32 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:45,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:45,255 INFO L93 Difference]: Finished difference Result 224 states and 224 transitions. [2021-11-09 08:58:45,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-09 08:58:45,256 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 6.65625) internal successors, (213), 32 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2021-11-09 08:58:45,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:45,257 INFO L225 Difference]: With dead ends: 224 [2021-11-09 08:58:45,257 INFO L226 Difference]: Without dead ends: 223 [2021-11-09 08:58:45,257 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-09 08:58:45,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-11-09 08:58:45,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 222. [2021-11-09 08:58:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 220 states have (on average 1.009090909090909) internal successors, (222), 221 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:45,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 222 transitions. [2021-11-09 08:58:45,263 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 222 transitions. Word has length 213 [2021-11-09 08:58:45,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:45,263 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 222 transitions. [2021-11-09 08:58:45,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 6.65625) internal successors, (213), 32 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:45,263 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 222 transitions. [2021-11-09 08:58:45,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-09 08:58:45,264 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:45,265 INFO L513 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 30, 30, 30, 1, 1] [2021-11-09 08:58:45,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:45,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2021-11-09 08:58:45,483 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:45,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:45,483 INFO L85 PathProgramCache]: Analyzing trace with hash -38633491, now seen corresponding path program 30 times [2021-11-09 08:58:45,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:45,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291326547] [2021-11-09 08:58:45,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:45,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3195 backedges. 0 proven. 3195 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:45,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:45,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291326547] [2021-11-09 08:58:45,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291326547] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:45,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513654946] [2021-11-09 08:58:45,941 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:58:45,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:45,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:45,943 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:45,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-11-09 08:58:47,944 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-11-09 08:58:47,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:47,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-09 08:58:47,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:48,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3195 backedges. 0 proven. 3195 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:48,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513654946] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:48,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:48,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2021-11-09 08:58:48,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267657829] [2021-11-09 08:58:48,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-09 08:58:48,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:48,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-09 08:58:48,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-09 08:58:48,496 INFO L87 Difference]: Start difference. First operand 222 states and 222 transitions. Second operand has 33 states, 32 states have (on average 6.75) internal successors, (216), 32 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:48,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:48,606 INFO L93 Difference]: Finished difference Result 226 states and 226 transitions. [2021-11-09 08:58:48,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-09 08:58:48,606 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 6.75) internal successors, (216), 32 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2021-11-09 08:58:48,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:48,607 INFO L225 Difference]: With dead ends: 226 [2021-11-09 08:58:48,607 INFO L226 Difference]: Without dead ends: 225 [2021-11-09 08:58:48,608 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-09 08:58:48,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-09 08:58:48,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-11-09 08:58:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 223 states have (on average 1.0089686098654709) internal successors, (225), 224 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:48,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 225 transitions. [2021-11-09 08:58:48,614 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 225 transitions. Word has length 216 [2021-11-09 08:58:48,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:48,615 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 225 transitions. [2021-11-09 08:58:48,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 6.75) internal successors, (216), 32 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:48,615 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 225 transitions. [2021-11-09 08:58:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-09 08:58:48,616 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:48,616 INFO L513 BasicCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1] [2021-11-09 08:58:48,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2021-11-09 08:58:48,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-11-09 08:58:48,817 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:48,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:48,817 INFO L85 PathProgramCache]: Analyzing trace with hash -545373135, now seen corresponding path program 31 times [2021-11-09 08:58:48,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:48,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934452891] [2021-11-09 08:58:48,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:48,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:49,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3317 backedges. 0 proven. 3317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:49,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:49,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934452891] [2021-11-09 08:58:49,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934452891] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:49,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051610852] [2021-11-09 08:58:49,292 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:58:49,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:49,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:49,295 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:49,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-11-09 08:58:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:51,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-09 08:58:51,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3317 backedges. 0 proven. 3317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:51,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051610852] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:51,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:51,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-11-09 08:58:51,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850782404] [2021-11-09 08:58:51,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-09 08:58:51,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:51,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-09 08:58:51,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-09 08:58:51,956 INFO L87 Difference]: Start difference. First operand 225 states and 225 transitions. Second operand has 34 states, 33 states have (on average 6.666666666666667) internal successors, (220), 33 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:52,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:52,048 INFO L93 Difference]: Finished difference Result 231 states and 231 transitions. [2021-11-09 08:58:52,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-09 08:58:52,049 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.666666666666667) internal successors, (220), 33 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2021-11-09 08:58:52,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:52,050 INFO L225 Difference]: With dead ends: 231 [2021-11-09 08:58:52,050 INFO L226 Difference]: Without dead ends: 230 [2021-11-09 08:58:52,050 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-09 08:58:52,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-09 08:58:52,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 229. [2021-11-09 08:58:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 227 states have (on average 1.0088105726872247) internal successors, (229), 228 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:52,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 229 transitions. [2021-11-09 08:58:52,059 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 229 transitions. Word has length 220 [2021-11-09 08:58:52,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:52,059 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 229 transitions. [2021-11-09 08:58:52,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.666666666666667) internal successors, (220), 33 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:52,059 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 229 transitions. [2021-11-09 08:58:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-09 08:58:52,061 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:52,061 INFO L513 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 31, 31, 31, 1, 1] [2021-11-09 08:58:52,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:52,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:52,274 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:52,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:52,274 INFO L85 PathProgramCache]: Analyzing trace with hash 650259741, now seen corresponding path program 31 times [2021-11-09 08:58:52,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:52,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366264717] [2021-11-09 08:58:52,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:52,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:52,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 0 proven. 3410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:52,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:52,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366264717] [2021-11-09 08:58:52,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366264717] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:52,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344019220] [2021-11-09 08:58:52,829 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:58:52,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:52,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:52,832 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:52,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-11-09 08:58:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:54,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-09 08:58:54,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 0 proven. 3410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:55,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344019220] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:55,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:55,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-11-09 08:58:55,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525941766] [2021-11-09 08:58:55,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-09 08:58:55,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:55,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-09 08:58:55,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-09 08:58:55,524 INFO L87 Difference]: Start difference. First operand 229 states and 229 transitions. Second operand has 34 states, 33 states have (on average 6.757575757575758) internal successors, (223), 33 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:55,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:55,600 INFO L93 Difference]: Finished difference Result 233 states and 233 transitions. [2021-11-09 08:58:55,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-09 08:58:55,600 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.757575757575758) internal successors, (223), 33 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2021-11-09 08:58:55,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:55,602 INFO L225 Difference]: With dead ends: 233 [2021-11-09 08:58:55,602 INFO L226 Difference]: Without dead ends: 232 [2021-11-09 08:58:55,603 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-09 08:58:55,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-09 08:58:55,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2021-11-09 08:58:55,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 230 states have (on average 1.008695652173913) internal successors, (232), 231 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 232 transitions. [2021-11-09 08:58:55,609 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 232 transitions. Word has length 223 [2021-11-09 08:58:55,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:55,609 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 232 transitions. [2021-11-09 08:58:55,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.757575757575758) internal successors, (223), 33 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 232 transitions. [2021-11-09 08:58:55,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-09 08:58:55,611 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:55,612 INFO L513 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1] [2021-11-09 08:58:55,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2021-11-09 08:58:55,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-11-09 08:58:55,836 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:55,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:55,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1905514849, now seen corresponding path program 32 times [2021-11-09 08:58:55,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:55,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655972217] [2021-11-09 08:58:55,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:55,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3536 backedges. 0 proven. 3536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:56,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:56,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655972217] [2021-11-09 08:58:56,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655972217] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:56,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180014064] [2021-11-09 08:58:56,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:58:56,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:56,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:56,305 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:56,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-11-09 08:58:58,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:58:58,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:58,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-09 08:58:58,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:59,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3536 backedges. 0 proven. 3536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:59,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180014064] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:59,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:59,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-11-09 08:58:59,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502419164] [2021-11-09 08:58:59,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-09 08:58:59,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:59,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-09 08:58:59,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-09 08:58:59,101 INFO L87 Difference]: Start difference. First operand 232 states and 232 transitions. Second operand has 35 states, 34 states have (on average 6.676470588235294) internal successors, (227), 34 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:59,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:59,168 INFO L93 Difference]: Finished difference Result 238 states and 238 transitions. [2021-11-09 08:58:59,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-09 08:58:59,169 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 6.676470588235294) internal successors, (227), 34 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2021-11-09 08:58:59,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:59,170 INFO L225 Difference]: With dead ends: 238 [2021-11-09 08:58:59,170 INFO L226 Difference]: Without dead ends: 237 [2021-11-09 08:58:59,170 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-09 08:58:59,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-09 08:58:59,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2021-11-09 08:58:59,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 234 states have (on average 1.0085470085470085) internal successors, (236), 235 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:59,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2021-11-09 08:58:59,176 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 227 [2021-11-09 08:58:59,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:59,176 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2021-11-09 08:58:59,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 6.676470588235294) internal successors, (227), 34 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:59,177 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2021-11-09 08:58:59,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-09 08:58:59,178 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:59,178 INFO L513 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 32, 32, 32, 1, 1] [2021-11-09 08:58:59,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:59,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:59,386 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:58:59,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:59,386 INFO L85 PathProgramCache]: Analyzing trace with hash 610159085, now seen corresponding path program 32 times [2021-11-09 08:58:59,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:59,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376594287] [2021-11-09 08:58:59,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:59,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3632 backedges. 0 proven. 3632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:59,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:59,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376594287] [2021-11-09 08:58:59,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376594287] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:59,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173395318] [2021-11-09 08:58:59,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:58:59,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:59,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:59,872 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:59,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-11-09 08:59:02,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:59:02,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:02,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-09 08:59:02,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:02,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3632 backedges. 0 proven. 3632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:02,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173395318] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:02,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:02,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-11-09 08:59:02,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884430166] [2021-11-09 08:59:02,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-09 08:59:02,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:02,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-09 08:59:02,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-09 08:59:02,702 INFO L87 Difference]: Start difference. First operand 236 states and 236 transitions. Second operand has 35 states, 34 states have (on average 6.764705882352941) internal successors, (230), 34 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:02,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:02,796 INFO L93 Difference]: Finished difference Result 240 states and 240 transitions. [2021-11-09 08:59:02,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-09 08:59:02,797 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 6.764705882352941) internal successors, (230), 34 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2021-11-09 08:59:02,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:02,798 INFO L225 Difference]: With dead ends: 240 [2021-11-09 08:59:02,798 INFO L226 Difference]: Without dead ends: 239 [2021-11-09 08:59:02,798 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-09 08:59:02,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-09 08:59:02,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-09 08:59:02,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 237 states have (on average 1.0084388185654007) internal successors, (239), 238 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:02,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 239 transitions. [2021-11-09 08:59:02,804 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 239 transitions. Word has length 230 [2021-11-09 08:59:02,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:02,805 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 239 transitions. [2021-11-09 08:59:02,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 6.764705882352941) internal successors, (230), 34 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:02,805 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 239 transitions. [2021-11-09 08:59:02,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-09 08:59:02,807 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:02,807 INFO L513 BasicCegarLoop]: trace histogram [34, 33, 33, 33, 33, 33, 33, 1, 1] [2021-11-09 08:59:02,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2021-11-09 08:59:03,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-11-09 08:59:03,022 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:03,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:03,022 INFO L85 PathProgramCache]: Analyzing trace with hash -684388815, now seen corresponding path program 33 times [2021-11-09 08:59:03,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:03,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795683430] [2021-11-09 08:59:03,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:03,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3762 backedges. 0 proven. 3762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:03,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:03,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795683430] [2021-11-09 08:59:03,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795683430] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:03,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974768073] [2021-11-09 08:59:03,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:59:03,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:03,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:03,535 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:03,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-11-09 08:59:05,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-11-09 08:59:05,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:05,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-09 08:59:05,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:06,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3762 backedges. 0 proven. 3762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:06,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974768073] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:06,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:06,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-11-09 08:59:06,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680301721] [2021-11-09 08:59:06,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-09 08:59:06,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:06,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-09 08:59:06,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-09 08:59:06,448 INFO L87 Difference]: Start difference. First operand 239 states and 239 transitions. Second operand has 36 states, 35 states have (on average 6.685714285714286) internal successors, (234), 35 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:06,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:06,535 INFO L93 Difference]: Finished difference Result 245 states and 245 transitions. [2021-11-09 08:59:06,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-09 08:59:06,536 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.685714285714286) internal successors, (234), 35 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-11-09 08:59:06,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:06,537 INFO L225 Difference]: With dead ends: 245 [2021-11-09 08:59:06,537 INFO L226 Difference]: Without dead ends: 244 [2021-11-09 08:59:06,537 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-09 08:59:06,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-09 08:59:06,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 243. [2021-11-09 08:59:06,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 241 states have (on average 1.008298755186722) internal successors, (243), 242 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:06,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 243 transitions. [2021-11-09 08:59:06,542 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 243 transitions. Word has length 234 [2021-11-09 08:59:06,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:06,543 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 243 transitions. [2021-11-09 08:59:06,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.685714285714286) internal successors, (234), 35 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:06,543 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 243 transitions. [2021-11-09 08:59:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-09 08:59:06,545 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:06,545 INFO L513 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 33, 33, 33, 1, 1] [2021-11-09 08:59:06,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-11-09 08:59:06,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:06,770 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:06,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:06,770 INFO L85 PathProgramCache]: Analyzing trace with hash -417389795, now seen corresponding path program 33 times [2021-11-09 08:59:06,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:06,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135704590] [2021-11-09 08:59:06,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:06,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:07,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3861 backedges. 0 proven. 3861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:07,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:07,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135704590] [2021-11-09 08:59:07,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135704590] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:07,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111866552] [2021-11-09 08:59:07,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:59:07,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:07,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:07,285 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:07,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-11-09 08:59:09,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-11-09 08:59:09,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:09,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-09 08:59:09,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3861 backedges. 0 proven. 3861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:10,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111866552] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:10,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:10,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-11-09 08:59:10,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766858150] [2021-11-09 08:59:10,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-09 08:59:10,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:10,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-09 08:59:10,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-09 08:59:10,294 INFO L87 Difference]: Start difference. First operand 243 states and 243 transitions. Second operand has 36 states, 35 states have (on average 6.771428571428571) internal successors, (237), 35 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:10,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:10,368 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2021-11-09 08:59:10,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-09 08:59:10,369 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.771428571428571) internal successors, (237), 35 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2021-11-09 08:59:10,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:10,370 INFO L225 Difference]: With dead ends: 247 [2021-11-09 08:59:10,370 INFO L226 Difference]: Without dead ends: 246 [2021-11-09 08:59:10,370 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-09 08:59:10,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-09 08:59:10,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2021-11-09 08:59:10,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 244 states have (on average 1.0081967213114753) internal successors, (246), 245 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:10,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 246 transitions. [2021-11-09 08:59:10,377 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 246 transitions. Word has length 237 [2021-11-09 08:59:10,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:10,377 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 246 transitions. [2021-11-09 08:59:10,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.771428571428571) internal successors, (237), 35 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:10,377 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 246 transitions. [2021-11-09 08:59:10,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-09 08:59:10,379 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:10,379 INFO L513 BasicCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1] [2021-11-09 08:59:10,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2021-11-09 08:59:10,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:10,600 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:10,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:10,601 INFO L85 PathProgramCache]: Analyzing trace with hash 780521313, now seen corresponding path program 34 times [2021-11-09 08:59:10,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:10,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220662486] [2021-11-09 08:59:10,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:10,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3995 backedges. 0 proven. 3995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:11,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:11,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220662486] [2021-11-09 08:59:11,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220662486] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:11,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101012236] [2021-11-09 08:59:11,151 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:59:11,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:11,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:11,152 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:11,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-11-09 08:59:13,573 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:59:13,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:13,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-09 08:59:13,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:14,187 INFO L134 CoverageAnalysis]: Checked inductivity of 3995 backedges. 0 proven. 3995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:14,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101012236] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:14,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:14,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2021-11-09 08:59:14,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868318182] [2021-11-09 08:59:14,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-09 08:59:14,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:14,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-09 08:59:14,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-09 08:59:14,195 INFO L87 Difference]: Start difference. First operand 246 states and 246 transitions. Second operand has 37 states, 36 states have (on average 6.694444444444445) internal successors, (241), 36 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:14,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:14,268 INFO L93 Difference]: Finished difference Result 252 states and 252 transitions. [2021-11-09 08:59:14,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-09 08:59:14,269 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 6.694444444444445) internal successors, (241), 36 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2021-11-09 08:59:14,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:14,270 INFO L225 Difference]: With dead ends: 252 [2021-11-09 08:59:14,270 INFO L226 Difference]: Without dead ends: 251 [2021-11-09 08:59:14,270 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-09 08:59:14,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-11-09 08:59:14,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 250. [2021-11-09 08:59:14,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 248 states have (on average 1.0080645161290323) internal successors, (250), 249 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:14,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 250 transitions. [2021-11-09 08:59:14,276 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 250 transitions. Word has length 241 [2021-11-09 08:59:14,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:14,277 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 250 transitions. [2021-11-09 08:59:14,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 6.694444444444445) internal successors, (241), 36 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:14,277 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 250 transitions. [2021-11-09 08:59:14,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-09 08:59:14,278 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:14,279 INFO L513 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 34, 34, 34, 1, 1] [2021-11-09 08:59:14,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2021-11-09 08:59:14,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2021-11-09 08:59:14,498 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:14,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:14,499 INFO L85 PathProgramCache]: Analyzing trace with hash -442461203, now seen corresponding path program 34 times [2021-11-09 08:59:14,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:14,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4411635] [2021-11-09 08:59:14,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:14,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:15,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4097 backedges. 0 proven. 4097 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:15,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:15,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4411635] [2021-11-09 08:59:15,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4411635] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:15,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069445254] [2021-11-09 08:59:15,039 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:59:15,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:15,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:15,040 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:15,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-11-09 08:59:17,553 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:59:17,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:17,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-09 08:59:17,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4097 backedges. 0 proven. 4097 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:18,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069445254] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:18,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:18,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2021-11-09 08:59:18,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116998543] [2021-11-09 08:59:18,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-09 08:59:18,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:18,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-09 08:59:18,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-09 08:59:18,146 INFO L87 Difference]: Start difference. First operand 250 states and 250 transitions. Second operand has 37 states, 36 states have (on average 6.777777777777778) internal successors, (244), 36 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:18,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:18,226 INFO L93 Difference]: Finished difference Result 254 states and 254 transitions. [2021-11-09 08:59:18,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-09 08:59:18,226 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 6.777777777777778) internal successors, (244), 36 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 244 [2021-11-09 08:59:18,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:18,228 INFO L225 Difference]: With dead ends: 254 [2021-11-09 08:59:18,228 INFO L226 Difference]: Without dead ends: 253 [2021-11-09 08:59:18,228 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-09 08:59:18,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-09 08:59:18,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2021-11-09 08:59:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 251 states have (on average 1.0079681274900398) internal successors, (253), 252 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 253 transitions. [2021-11-09 08:59:18,234 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 253 transitions. Word has length 244 [2021-11-09 08:59:18,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:18,235 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 253 transitions. [2021-11-09 08:59:18,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 6.777777777777778) internal successors, (244), 36 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:18,235 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 253 transitions. [2021-11-09 08:59:18,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-09 08:59:18,237 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:18,237 INFO L513 BasicCegarLoop]: trace histogram [36, 35, 35, 35, 35, 35, 35, 1, 1] [2021-11-09 08:59:18,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2021-11-09 08:59:18,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:18,458 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:18,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:18,458 INFO L85 PathProgramCache]: Analyzing trace with hash 977426481, now seen corresponding path program 35 times [2021-11-09 08:59:18,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:18,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602194335] [2021-11-09 08:59:18,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:18,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:19,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4235 backedges. 0 proven. 4235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:19,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:19,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602194335] [2021-11-09 08:59:19,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602194335] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:19,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389247117] [2021-11-09 08:59:19,033 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:59:19,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:19,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:19,034 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:19,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-11-09 08:59:21,620 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-11-09 08:59:21,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:21,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-09 08:59:21,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:22,243 INFO L134 CoverageAnalysis]: Checked inductivity of 4235 backedges. 0 proven. 4235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:22,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389247117] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:22,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:22,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-11-09 08:59:22,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295658325] [2021-11-09 08:59:22,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-09 08:59:22,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:22,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-09 08:59:22,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-09 08:59:22,244 INFO L87 Difference]: Start difference. First operand 253 states and 253 transitions. Second operand has 38 states, 37 states have (on average 6.702702702702703) internal successors, (248), 37 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:22,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:22,336 INFO L93 Difference]: Finished difference Result 259 states and 259 transitions. [2021-11-09 08:59:22,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-09 08:59:22,337 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 6.702702702702703) internal successors, (248), 37 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2021-11-09 08:59:22,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:22,338 INFO L225 Difference]: With dead ends: 259 [2021-11-09 08:59:22,338 INFO L226 Difference]: Without dead ends: 258 [2021-11-09 08:59:22,339 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-09 08:59:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-09 08:59:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 257. [2021-11-09 08:59:22,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 255 states have (on average 1.007843137254902) internal successors, (257), 256 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:22,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 257 transitions. [2021-11-09 08:59:22,343 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 257 transitions. Word has length 248 [2021-11-09 08:59:22,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:22,344 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 257 transitions. [2021-11-09 08:59:22,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 6.702702702702703) internal successors, (248), 37 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:22,344 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 257 transitions. [2021-11-09 08:59:22,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-09 08:59:22,345 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:22,345 INFO L513 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 35, 35, 35, 1, 1] [2021-11-09 08:59:22,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2021-11-09 08:59:22,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:22,546 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:22,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:22,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1365927651, now seen corresponding path program 35 times [2021-11-09 08:59:22,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:22,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438638221] [2021-11-09 08:59:22,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:22,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 4340 backedges. 0 proven. 4340 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:23,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:23,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438638221] [2021-11-09 08:59:23,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438638221] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:23,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765419134] [2021-11-09 08:59:23,111 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:59:23,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:23,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:23,112 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:23,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-11-09 08:59:25,847 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-11-09 08:59:25,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:25,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-09 08:59:25,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:26,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4340 backedges. 0 proven. 4340 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:26,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765419134] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:26,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:26,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-11-09 08:59:26,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532776826] [2021-11-09 08:59:26,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-09 08:59:26,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:26,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-09 08:59:26,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-09 08:59:26,458 INFO L87 Difference]: Start difference. First operand 257 states and 257 transitions. Second operand has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 37 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:26,551 INFO L93 Difference]: Finished difference Result 261 states and 261 transitions. [2021-11-09 08:59:26,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-09 08:59:26,552 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 37 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 251 [2021-11-09 08:59:26,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:26,554 INFO L225 Difference]: With dead ends: 261 [2021-11-09 08:59:26,554 INFO L226 Difference]: Without dead ends: 260 [2021-11-09 08:59:26,554 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-09 08:59:26,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-11-09 08:59:26,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2021-11-09 08:59:26,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 258 states have (on average 1.0077519379844961) internal successors, (260), 259 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:26,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 260 transitions. [2021-11-09 08:59:26,559 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 260 transitions. Word has length 251 [2021-11-09 08:59:26,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:26,560 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 260 transitions. [2021-11-09 08:59:26,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 37 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:26,560 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 260 transitions. [2021-11-09 08:59:26,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-09 08:59:26,562 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:26,562 INFO L513 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1] [2021-11-09 08:59:26,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2021-11-09 08:59:26,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:26,782 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:26,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:26,782 INFO L85 PathProgramCache]: Analyzing trace with hash -909032095, now seen corresponding path program 36 times [2021-11-09 08:59:26,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:26,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827960973] [2021-11-09 08:59:26,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:26,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:27,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4482 backedges. 0 proven. 4482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:27,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:27,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827960973] [2021-11-09 08:59:27,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827960973] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:27,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368712826] [2021-11-09 08:59:27,397 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:59:27,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:27,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:27,398 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:27,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-11-09 08:59:30,218 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-11-09 08:59:30,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:30,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-09 08:59:30,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4482 backedges. 0 proven. 4482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:30,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368712826] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:30,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:30,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-11-09 08:59:30,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192669270] [2021-11-09 08:59:30,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-09 08:59:30,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:30,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-09 08:59:30,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 08:59:30,847 INFO L87 Difference]: Start difference. First operand 260 states and 260 transitions. Second operand has 39 states, 38 states have (on average 6.7105263157894735) internal successors, (255), 38 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:30,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:30,936 INFO L93 Difference]: Finished difference Result 266 states and 266 transitions. [2021-11-09 08:59:30,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-09 08:59:30,936 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 6.7105263157894735) internal successors, (255), 38 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2021-11-09 08:59:30,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:30,938 INFO L225 Difference]: With dead ends: 266 [2021-11-09 08:59:30,938 INFO L226 Difference]: Without dead ends: 265 [2021-11-09 08:59:30,939 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 08:59:30,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-11-09 08:59:30,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 264. [2021-11-09 08:59:30,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 262 states have (on average 1.0076335877862594) internal successors, (264), 263 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:30,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 264 transitions. [2021-11-09 08:59:30,946 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 264 transitions. Word has length 255 [2021-11-09 08:59:30,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:30,946 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 264 transitions. [2021-11-09 08:59:30,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 6.7105263157894735) internal successors, (255), 38 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:30,947 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 264 transitions. [2021-11-09 08:59:30,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-09 08:59:30,948 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:30,948 INFO L513 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 36, 36, 36, 1, 1] [2021-11-09 08:59:31,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2021-11-09 08:59:31,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:31,170 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:31,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:31,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1206297107, now seen corresponding path program 36 times [2021-11-09 08:59:31,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:31,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092315900] [2021-11-09 08:59:31,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:31,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:31,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4590 backedges. 0 proven. 4590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:31,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:31,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092315900] [2021-11-09 08:59:31,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092315900] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:31,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989109506] [2021-11-09 08:59:31,790 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:59:31,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:31,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:31,790 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:31,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-11-09 08:59:34,631 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-11-09 08:59:34,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:34,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-09 08:59:34,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4590 backedges. 0 proven. 4590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:35,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989109506] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:35,335 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:35,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-11-09 08:59:35,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938639857] [2021-11-09 08:59:35,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-09 08:59:35,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:35,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-09 08:59:35,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 08:59:35,336 INFO L87 Difference]: Start difference. First operand 264 states and 264 transitions. Second operand has 39 states, 38 states have (on average 6.7894736842105265) internal successors, (258), 38 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:35,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:35,422 INFO L93 Difference]: Finished difference Result 268 states and 268 transitions. [2021-11-09 08:59:35,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-09 08:59:35,423 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 6.7894736842105265) internal successors, (258), 38 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2021-11-09 08:59:35,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:35,424 INFO L225 Difference]: With dead ends: 268 [2021-11-09 08:59:35,424 INFO L226 Difference]: Without dead ends: 267 [2021-11-09 08:59:35,425 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 08:59:35,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-11-09 08:59:35,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2021-11-09 08:59:35,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 265 states have (on average 1.0075471698113208) internal successors, (267), 266 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:35,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 267 transitions. [2021-11-09 08:59:35,431 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 267 transitions. Word has length 258 [2021-11-09 08:59:35,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:35,432 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 267 transitions. [2021-11-09 08:59:35,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 6.7894736842105265) internal successors, (258), 38 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:35,432 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 267 transitions. [2021-11-09 08:59:35,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-09 08:59:35,434 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:35,434 INFO L513 BasicCegarLoop]: trace histogram [38, 37, 37, 37, 37, 37, 37, 1, 1] [2021-11-09 08:59:35,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2021-11-09 08:59:35,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:35,646 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:35,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:35,646 INFO L85 PathProgramCache]: Analyzing trace with hash 793125425, now seen corresponding path program 37 times [2021-11-09 08:59:35,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:35,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113045801] [2021-11-09 08:59:35,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:35,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 0 proven. 4736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:36,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:36,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113045801] [2021-11-09 08:59:36,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113045801] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:36,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988845518] [2021-11-09 08:59:36,257 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:59:36,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:36,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:36,258 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:36,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-11-09 08:59:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:39,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-09 08:59:39,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:39,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 0 proven. 4736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:39,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988845518] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:39,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:39,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-11-09 08:59:39,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401042616] [2021-11-09 08:59:39,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-09 08:59:39,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:39,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-09 08:59:39,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-09 08:59:39,897 INFO L87 Difference]: Start difference. First operand 267 states and 267 transitions. Second operand has 40 states, 39 states have (on average 6.717948717948718) internal successors, (262), 39 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:39,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:39,989 INFO L93 Difference]: Finished difference Result 273 states and 273 transitions. [2021-11-09 08:59:39,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-09 08:59:39,989 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 6.717948717948718) internal successors, (262), 39 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2021-11-09 08:59:39,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:39,990 INFO L225 Difference]: With dead ends: 273 [2021-11-09 08:59:39,991 INFO L226 Difference]: Without dead ends: 272 [2021-11-09 08:59:39,991 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-09 08:59:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-09 08:59:39,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 271. [2021-11-09 08:59:39,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 269 states have (on average 1.0074349442379182) internal successors, (271), 270 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 271 transitions. [2021-11-09 08:59:39,995 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 271 transitions. Word has length 262 [2021-11-09 08:59:39,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:39,995 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 271 transitions. [2021-11-09 08:59:39,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 6.717948717948718) internal successors, (262), 39 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:39,995 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 271 transitions. [2021-11-09 08:59:39,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-09 08:59:39,997 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:39,997 INFO L513 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 37, 37, 37, 1, 1] [2021-11-09 08:59:40,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2021-11-09 08:59:40,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-11-09 08:59:40,216 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:40,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:40,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1384484637, now seen corresponding path program 37 times [2021-11-09 08:59:40,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:40,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756717842] [2021-11-09 08:59:40,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:40,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4847 backedges. 0 proven. 4847 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:40,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:40,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756717842] [2021-11-09 08:59:40,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756717842] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:40,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158235212] [2021-11-09 08:59:40,873 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:59:40,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:40,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:40,874 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:40,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-11-09 08:59:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:44,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-09 08:59:44,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4847 backedges. 0 proven. 4847 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:44,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158235212] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:44,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:44,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-11-09 08:59:44,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013520230] [2021-11-09 08:59:44,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-09 08:59:44,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:44,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-09 08:59:44,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-09 08:59:44,925 INFO L87 Difference]: Start difference. First operand 271 states and 271 transitions. Second operand has 40 states, 39 states have (on average 6.794871794871795) internal successors, (265), 39 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:45,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:45,026 INFO L93 Difference]: Finished difference Result 275 states and 275 transitions. [2021-11-09 08:59:45,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-09 08:59:45,027 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 6.794871794871795) internal successors, (265), 39 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2021-11-09 08:59:45,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:45,028 INFO L225 Difference]: With dead ends: 275 [2021-11-09 08:59:45,028 INFO L226 Difference]: Without dead ends: 274 [2021-11-09 08:59:45,029 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-09 08:59:45,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-09 08:59:45,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-09 08:59:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 272 states have (on average 1.0073529411764706) internal successors, (274), 273 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:45,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 274 transitions. [2021-11-09 08:59:45,035 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 274 transitions. Word has length 265 [2021-11-09 08:59:45,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:45,035 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 274 transitions. [2021-11-09 08:59:45,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 6.794871794871795) internal successors, (265), 39 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:45,036 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 274 transitions. [2021-11-09 08:59:45,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-09 08:59:45,038 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:45,038 INFO L513 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1] [2021-11-09 08:59:45,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2021-11-09 08:59:45,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-11-09 08:59:45,261 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:45,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:45,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1758870369, now seen corresponding path program 38 times [2021-11-09 08:59:45,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:45,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988436950] [2021-11-09 08:59:45,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:45,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:46,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4997 backedges. 0 proven. 4997 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:46,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:46,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988436950] [2021-11-09 08:59:46,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988436950] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:46,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227393192] [2021-11-09 08:59:46,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:59:46,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:46,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:46,090 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:46,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-11-09 08:59:49,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:59:49,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:49,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-09 08:59:49,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:50,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4997 backedges. 0 proven. 4997 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:50,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227393192] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:50,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:50,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-11-09 08:59:50,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800563758] [2021-11-09 08:59:50,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-09 08:59:50,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:50,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-09 08:59:50,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-09 08:59:50,428 INFO L87 Difference]: Start difference. First operand 274 states and 274 transitions. Second operand has 41 states, 40 states have (on average 6.725) internal successors, (269), 40 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:50,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:50,563 INFO L93 Difference]: Finished difference Result 280 states and 280 transitions. [2021-11-09 08:59:50,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-09 08:59:50,564 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 6.725) internal successors, (269), 40 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 269 [2021-11-09 08:59:50,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:50,565 INFO L225 Difference]: With dead ends: 280 [2021-11-09 08:59:50,566 INFO L226 Difference]: Without dead ends: 279 [2021-11-09 08:59:50,566 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-09 08:59:50,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-09 08:59:50,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 278. [2021-11-09 08:59:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 276 states have (on average 1.0072463768115942) internal successors, (278), 277 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:50,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 278 transitions. [2021-11-09 08:59:50,574 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 278 transitions. Word has length 269 [2021-11-09 08:59:50,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:50,575 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 278 transitions. [2021-11-09 08:59:50,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 6.725) internal successors, (269), 40 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:50,575 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 278 transitions. [2021-11-09 08:59:50,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-09 08:59:50,577 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:50,577 INFO L513 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 38, 38, 38, 1, 1] [2021-11-09 08:59:50,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2021-11-09 08:59:50,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:50,802 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:50,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:50,802 INFO L85 PathProgramCache]: Analyzing trace with hash -93804563, now seen corresponding path program 38 times [2021-11-09 08:59:50,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:50,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130876606] [2021-11-09 08:59:50,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:50,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:51,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5111 backedges. 0 proven. 5111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:51,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:51,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130876606] [2021-11-09 08:59:51,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130876606] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:51,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476717742] [2021-11-09 08:59:51,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:59:51,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:51,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:51,566 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:51,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-11-09 08:59:54,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:59:54,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:54,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-09 08:59:54,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:55,546 INFO L134 CoverageAnalysis]: Checked inductivity of 5111 backedges. 0 proven. 5111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:55,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476717742] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:55,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:55,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-11-09 08:59:55,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500295645] [2021-11-09 08:59:55,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-09 08:59:55,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:55,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-09 08:59:55,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-09 08:59:55,548 INFO L87 Difference]: Start difference. First operand 278 states and 278 transitions. Second operand has 41 states, 40 states have (on average 6.8) internal successors, (272), 40 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:55,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:55,650 INFO L93 Difference]: Finished difference Result 282 states and 282 transitions. [2021-11-09 08:59:55,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-09 08:59:55,651 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 6.8) internal successors, (272), 40 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 272 [2021-11-09 08:59:55,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:55,652 INFO L225 Difference]: With dead ends: 282 [2021-11-09 08:59:55,652 INFO L226 Difference]: Without dead ends: 281 [2021-11-09 08:59:55,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-09 08:59:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-11-09 08:59:55,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2021-11-09 08:59:55,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 279 states have (on average 1.007168458781362) internal successors, (281), 280 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 281 transitions. [2021-11-09 08:59:55,658 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 281 transitions. Word has length 272 [2021-11-09 08:59:55,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:55,658 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 281 transitions. [2021-11-09 08:59:55,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 6.8) internal successors, (272), 40 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:55,659 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 281 transitions. [2021-11-09 08:59:55,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-09 08:59:55,661 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:55,661 INFO L513 BasicCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1] [2021-11-09 08:59:55,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2021-11-09 08:59:55,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:55,862 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 08:59:55,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:55,862 INFO L85 PathProgramCache]: Analyzing trace with hash -991925199, now seen corresponding path program 39 times [2021-11-09 08:59:55,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:55,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096270499] [2021-11-09 08:59:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:55,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5265 backedges. 0 proven. 5265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:56,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:56,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096270499] [2021-11-09 08:59:56,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096270499] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:56,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383661055] [2021-11-09 08:59:56,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:59:56,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:56,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:56,607 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:56,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-11-09 09:00:00,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-11-09 09:00:00,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:00:00,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-09 09:00:00,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:01,016 INFO L134 CoverageAnalysis]: Checked inductivity of 5265 backedges. 0 proven. 5265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:01,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383661055] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:01,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:01,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-11-09 09:00:01,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143633115] [2021-11-09 09:00:01,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-09 09:00:01,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:01,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-09 09:00:01,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-09 09:00:01,019 INFO L87 Difference]: Start difference. First operand 281 states and 281 transitions. Second operand has 42 states, 41 states have (on average 6.7317073170731705) internal successors, (276), 41 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:01,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:00:01,147 INFO L93 Difference]: Finished difference Result 287 states and 287 transitions. [2021-11-09 09:00:01,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-09 09:00:01,147 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 6.7317073170731705) internal successors, (276), 41 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2021-11-09 09:00:01,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:00:01,148 INFO L225 Difference]: With dead ends: 287 [2021-11-09 09:00:01,148 INFO L226 Difference]: Without dead ends: 286 [2021-11-09 09:00:01,149 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-09 09:00:01,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-09 09:00:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 285. [2021-11-09 09:00:01,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 283 states have (on average 1.0070671378091873) internal successors, (285), 284 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:01,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 285 transitions. [2021-11-09 09:00:01,153 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 285 transitions. Word has length 276 [2021-11-09 09:00:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:00:01,153 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 285 transitions. [2021-11-09 09:00:01,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 6.7317073170731705) internal successors, (276), 41 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 285 transitions. [2021-11-09 09:00:01,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-09 09:00:01,155 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:00:01,155 INFO L513 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 39, 39, 39, 1, 1] [2021-11-09 09:00:01,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2021-11-09 09:00:01,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2021-11-09 09:00:01,355 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:00:01,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:00:01,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1068563171, now seen corresponding path program 39 times [2021-11-09 09:00:01,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:00:01,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188009531] [2021-11-09 09:00:01,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:00:01,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:00:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:02,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5382 backedges. 0 proven. 5382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:02,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:02,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188009531] [2021-11-09 09:00:02,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188009531] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:02,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652391045] [2021-11-09 09:00:02,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:00:02,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:02,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:02,176 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:02,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2021-11-09 09:00:05,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-11-09 09:00:05,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:00:05,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-09 09:00:05,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:06,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5382 backedges. 0 proven. 5382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:06,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652391045] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:06,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:06,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-11-09 09:00:06,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641586376] [2021-11-09 09:00:06,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-09 09:00:06,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:06,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-09 09:00:06,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-09 09:00:06,585 INFO L87 Difference]: Start difference. First operand 285 states and 285 transitions. Second operand has 42 states, 41 states have (on average 6.804878048780488) internal successors, (279), 41 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:06,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:00:06,704 INFO L93 Difference]: Finished difference Result 289 states and 289 transitions. [2021-11-09 09:00:06,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-09 09:00:06,704 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 6.804878048780488) internal successors, (279), 41 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 279 [2021-11-09 09:00:06,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:00:06,706 INFO L225 Difference]: With dead ends: 289 [2021-11-09 09:00:06,706 INFO L226 Difference]: Without dead ends: 288 [2021-11-09 09:00:06,707 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-09 09:00:06,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-09 09:00:06,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2021-11-09 09:00:06,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 286 states have (on average 1.006993006993007) internal successors, (288), 287 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:06,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 288 transitions. [2021-11-09 09:00:06,713 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 288 transitions. Word has length 279 [2021-11-09 09:00:06,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:00:06,713 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 288 transitions. [2021-11-09 09:00:06,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 6.804878048780488) internal successors, (279), 41 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:06,714 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 288 transitions. [2021-11-09 09:00:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-11-09 09:00:06,716 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:00:06,716 INFO L513 BasicCegarLoop]: trace histogram [41, 40, 40, 40, 40, 40, 40, 1, 1] [2021-11-09 09:00:06,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2021-11-09 09:00:06,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:06,918 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:00:06,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:00:06,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1223995745, now seen corresponding path program 40 times [2021-11-09 09:00:06,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:00:06,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105214411] [2021-11-09 09:00:06,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:00:06,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:00:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:07,853 INFO L134 CoverageAnalysis]: Checked inductivity of 5540 backedges. 0 proven. 5540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:07,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:07,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105214411] [2021-11-09 09:00:07,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105214411] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:07,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929208355] [2021-11-09 09:00:07,854 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:00:07,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:07,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:07,855 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:07,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2021-11-09 09:00:11,595 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:00:11,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:00:11,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-09 09:00:11,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:12,359 INFO L134 CoverageAnalysis]: Checked inductivity of 5540 backedges. 0 proven. 5540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:12,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929208355] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:12,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:12,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-11-09 09:00:12,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264030433] [2021-11-09 09:00:12,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-09 09:00:12,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:12,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-09 09:00:12,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-09 09:00:12,361 INFO L87 Difference]: Start difference. First operand 288 states and 288 transitions. Second operand has 43 states, 42 states have (on average 6.738095238095238) internal successors, (283), 42 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:12,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:00:12,475 INFO L93 Difference]: Finished difference Result 294 states and 294 transitions. [2021-11-09 09:00:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-09 09:00:12,475 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 6.738095238095238) internal successors, (283), 42 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 283 [2021-11-09 09:00:12,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:00:12,477 INFO L225 Difference]: With dead ends: 294 [2021-11-09 09:00:12,477 INFO L226 Difference]: Without dead ends: 293 [2021-11-09 09:00:12,477 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-09 09:00:12,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-09 09:00:12,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 292. [2021-11-09 09:00:12,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 290 states have (on average 1.006896551724138) internal successors, (292), 291 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 292 transitions. [2021-11-09 09:00:12,484 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 292 transitions. Word has length 283 [2021-11-09 09:00:12,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:00:12,485 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 292 transitions. [2021-11-09 09:00:12,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 6.738095238095238) internal successors, (283), 42 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 292 transitions. [2021-11-09 09:00:12,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-11-09 09:00:12,487 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:00:12,487 INFO L513 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 40, 40, 40, 1, 1] [2021-11-09 09:00:12,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2021-11-09 09:00:12,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2021-11-09 09:00:12,694 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:00:12,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:00:12,694 INFO L85 PathProgramCache]: Analyzing trace with hash -215059987, now seen corresponding path program 40 times [2021-11-09 09:00:12,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:00:12,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731519565] [2021-11-09 09:00:12,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:00:12,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:00:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:13,542 INFO L134 CoverageAnalysis]: Checked inductivity of 5660 backedges. 0 proven. 5660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:13,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:13,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731519565] [2021-11-09 09:00:13,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731519565] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:13,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557340221] [2021-11-09 09:00:13,543 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:00:13,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:13,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:13,543 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:13,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-11-09 09:00:17,162 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:00:17,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:00:17,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-09 09:00:17,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:17,979 INFO L134 CoverageAnalysis]: Checked inductivity of 5660 backedges. 0 proven. 5660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:17,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557340221] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:17,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:17,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-11-09 09:00:17,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474016957] [2021-11-09 09:00:17,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-09 09:00:17,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:17,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-09 09:00:17,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-09 09:00:17,982 INFO L87 Difference]: Start difference. First operand 292 states and 292 transitions. Second operand has 43 states, 42 states have (on average 6.809523809523809) internal successors, (286), 42 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:18,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:00:18,092 INFO L93 Difference]: Finished difference Result 296 states and 296 transitions. [2021-11-09 09:00:18,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-09 09:00:18,093 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 6.809523809523809) internal successors, (286), 42 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2021-11-09 09:00:18,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:00:18,095 INFO L225 Difference]: With dead ends: 296 [2021-11-09 09:00:18,095 INFO L226 Difference]: Without dead ends: 295 [2021-11-09 09:00:18,095 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-09 09:00:18,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-11-09 09:00:18,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2021-11-09 09:00:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 293 states have (on average 1.006825938566553) internal successors, (295), 294 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:18,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 295 transitions. [2021-11-09 09:00:18,101 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 295 transitions. Word has length 286 [2021-11-09 09:00:18,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:00:18,102 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 295 transitions. [2021-11-09 09:00:18,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 6.809523809523809) internal successors, (286), 42 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:18,103 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 295 transitions. [2021-11-09 09:00:18,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-09 09:00:18,104 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:00:18,104 INFO L513 BasicCegarLoop]: trace histogram [42, 41, 41, 41, 41, 41, 41, 1, 1] [2021-11-09 09:00:18,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2021-11-09 09:00:18,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2021-11-09 09:00:18,305 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:00:18,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:00:18,306 INFO L85 PathProgramCache]: Analyzing trace with hash -240044495, now seen corresponding path program 41 times [2021-11-09 09:00:18,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:00:18,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919711092] [2021-11-09 09:00:18,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:00:18,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:00:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5822 backedges. 0 proven. 5822 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:19,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:19,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919711092] [2021-11-09 09:00:19,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919711092] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:19,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263678225] [2021-11-09 09:00:19,161 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 09:00:19,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:19,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:19,162 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:19,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-11-09 09:00:22,831 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-11-09 09:00:22,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:00:22,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-09 09:00:22,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:23,529 INFO L134 CoverageAnalysis]: Checked inductivity of 5822 backedges. 0 proven. 5822 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:23,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263678225] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:23,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:23,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-11-09 09:00:23,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680352375] [2021-11-09 09:00:23,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-11-09 09:00:23,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:23,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-11-09 09:00:23,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-09 09:00:23,531 INFO L87 Difference]: Start difference. First operand 295 states and 295 transitions. Second operand has 44 states, 43 states have (on average 6.744186046511628) internal successors, (290), 43 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:23,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:00:23,647 INFO L93 Difference]: Finished difference Result 301 states and 301 transitions. [2021-11-09 09:00:23,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-09 09:00:23,647 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 6.744186046511628) internal successors, (290), 43 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 290 [2021-11-09 09:00:23,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:00:23,649 INFO L225 Difference]: With dead ends: 301 [2021-11-09 09:00:23,649 INFO L226 Difference]: Without dead ends: 300 [2021-11-09 09:00:23,649 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-09 09:00:23,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-11-09 09:00:23,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 299. [2021-11-09 09:00:23,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 297 states have (on average 1.0067340067340067) internal successors, (299), 298 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:23,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 299 transitions. [2021-11-09 09:00:23,654 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 299 transitions. Word has length 290 [2021-11-09 09:00:23,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:00:23,654 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 299 transitions. [2021-11-09 09:00:23,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 6.744186046511628) internal successors, (290), 43 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 299 transitions. [2021-11-09 09:00:23,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-09 09:00:23,655 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:00:23,655 INFO L513 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 41, 41, 41, 1, 1] [2021-11-09 09:00:23,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2021-11-09 09:00:23,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:23,856 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:00:23,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:00:23,856 INFO L85 PathProgramCache]: Analyzing trace with hash -44958947, now seen corresponding path program 41 times [2021-11-09 09:00:23,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:00:23,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833209698] [2021-11-09 09:00:23,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:00:23,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:00:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:24,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5945 backedges. 0 proven. 5945 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:24,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:24,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833209698] [2021-11-09 09:00:24,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833209698] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:24,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590846330] [2021-11-09 09:00:24,595 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 09:00:24,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:24,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:24,597 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:24,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-11-09 09:00:28,692 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-11-09 09:00:28,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:00:28,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-09 09:00:28,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:29,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5945 backedges. 0 proven. 5945 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:29,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590846330] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:29,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:29,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-11-09 09:00:29,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065278902] [2021-11-09 09:00:29,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-11-09 09:00:29,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:29,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-11-09 09:00:29,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-09 09:00:29,474 INFO L87 Difference]: Start difference. First operand 299 states and 299 transitions. Second operand has 44 states, 43 states have (on average 6.813953488372093) internal successors, (293), 43 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:29,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:00:29,576 INFO L93 Difference]: Finished difference Result 303 states and 303 transitions. [2021-11-09 09:00:29,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-09 09:00:29,576 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 6.813953488372093) internal successors, (293), 43 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2021-11-09 09:00:29,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:00:29,577 INFO L225 Difference]: With dead ends: 303 [2021-11-09 09:00:29,578 INFO L226 Difference]: Without dead ends: 302 [2021-11-09 09:00:29,578 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-09 09:00:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-11-09 09:00:29,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2021-11-09 09:00:29,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 300 states have (on average 1.0066666666666666) internal successors, (302), 301 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:29,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 302 transitions. [2021-11-09 09:00:29,586 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 302 transitions. Word has length 293 [2021-11-09 09:00:29,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:00:29,587 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 302 transitions. [2021-11-09 09:00:29,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 6.813953488372093) internal successors, (293), 43 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:29,587 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 302 transitions. [2021-11-09 09:00:29,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-09 09:00:29,589 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:00:29,589 INFO L513 BasicCegarLoop]: trace histogram [43, 42, 42, 42, 42, 42, 42, 1, 1] [2021-11-09 09:00:29,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2021-11-09 09:00:29,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-11-09 09:00:29,804 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:00:29,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:00:29,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1081301151, now seen corresponding path program 42 times [2021-11-09 09:00:29,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:00:29,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736233949] [2021-11-09 09:00:29,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:00:29,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:00:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:30,651 INFO L134 CoverageAnalysis]: Checked inductivity of 6111 backedges. 0 proven. 6111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:30,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:30,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736233949] [2021-11-09 09:00:30,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736233949] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:30,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392819533] [2021-11-09 09:00:30,651 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 09:00:30,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:30,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:30,652 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:30,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-11-09 09:00:34,721 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-11-09 09:00:34,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:00:34,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-09 09:00:34,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 6111 backedges. 0 proven. 6111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:35,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392819533] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:35,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:35,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-11-09 09:00:35,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699977428] [2021-11-09 09:00:35,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-09 09:00:35,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:35,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-09 09:00:35,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-09 09:00:35,474 INFO L87 Difference]: Start difference. First operand 302 states and 302 transitions. Second operand has 45 states, 44 states have (on average 6.75) internal successors, (297), 44 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:35,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:00:35,575 INFO L93 Difference]: Finished difference Result 308 states and 308 transitions. [2021-11-09 09:00:35,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-09 09:00:35,576 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 6.75) internal successors, (297), 44 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 297 [2021-11-09 09:00:35,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:00:35,577 INFO L225 Difference]: With dead ends: 308 [2021-11-09 09:00:35,593 INFO L226 Difference]: Without dead ends: 307 [2021-11-09 09:00:35,594 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-09 09:00:35,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-09 09:00:35,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 306. [2021-11-09 09:00:35,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 304 states have (on average 1.006578947368421) internal successors, (306), 305 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:35,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 306 transitions. [2021-11-09 09:00:35,598 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 306 transitions. Word has length 297 [2021-11-09 09:00:35,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:00:35,598 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 306 transitions. [2021-11-09 09:00:35,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 6.75) internal successors, (297), 44 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:35,599 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 306 transitions. [2021-11-09 09:00:35,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-09 09:00:35,600 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:00:35,600 INFO L513 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 42, 42, 42, 1, 1] [2021-11-09 09:00:35,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2021-11-09 09:00:35,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-11-09 09:00:35,800 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:00:35,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:00:35,801 INFO L85 PathProgramCache]: Analyzing trace with hash -787825683, now seen corresponding path program 42 times [2021-11-09 09:00:35,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:00:35,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160507417] [2021-11-09 09:00:35,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:00:35,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:00:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:36,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 0 proven. 6237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:36,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:36,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160507417] [2021-11-09 09:00:36,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160507417] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:36,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858281271] [2021-11-09 09:00:36,595 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 09:00:36,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:36,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:36,597 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:36,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2021-11-09 09:00:40,662 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-11-09 09:00:40,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:00:40,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-09 09:00:40,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:41,591 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 0 proven. 6237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:41,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858281271] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:41,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:41,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-11-09 09:00:41,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210412200] [2021-11-09 09:00:41,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-09 09:00:41,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:41,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-09 09:00:41,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-09 09:00:41,596 INFO L87 Difference]: Start difference. First operand 306 states and 306 transitions. Second operand has 45 states, 44 states have (on average 6.818181818181818) internal successors, (300), 44 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:41,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:00:41,737 INFO L93 Difference]: Finished difference Result 310 states and 310 transitions. [2021-11-09 09:00:41,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-09 09:00:41,738 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 6.818181818181818) internal successors, (300), 44 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2021-11-09 09:00:41,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:00:41,740 INFO L225 Difference]: With dead ends: 310 [2021-11-09 09:00:41,740 INFO L226 Difference]: Without dead ends: 309 [2021-11-09 09:00:41,740 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-09 09:00:41,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-09 09:00:41,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-11-09 09:00:41,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 307 states have (on average 1.006514657980456) internal successors, (309), 308 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:41,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 309 transitions. [2021-11-09 09:00:41,746 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 309 transitions. Word has length 300 [2021-11-09 09:00:41,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:00:41,746 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 309 transitions. [2021-11-09 09:00:41,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 6.818181818181818) internal successors, (300), 44 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:41,746 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 309 transitions. [2021-11-09 09:00:41,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-11-09 09:00:41,748 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:00:41,748 INFO L513 BasicCegarLoop]: trace histogram [44, 43, 43, 43, 43, 43, 43, 1, 1] [2021-11-09 09:00:41,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2021-11-09 09:00:41,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:41,949 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:00:41,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:00:41,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1806139343, now seen corresponding path program 43 times [2021-11-09 09:00:41,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:00:41,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987439949] [2021-11-09 09:00:41,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:00:41,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:00:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:42,880 INFO L134 CoverageAnalysis]: Checked inductivity of 6407 backedges. 0 proven. 6407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:42,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:42,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987439949] [2021-11-09 09:00:42,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987439949] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:42,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031591205] [2021-11-09 09:00:42,881 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:00:42,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:42,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:42,883 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:42,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-11-09 09:00:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:47,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-09 09:00:47,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:47,896 INFO L134 CoverageAnalysis]: Checked inductivity of 6407 backedges. 0 proven. 6407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:47,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031591205] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:47,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:47,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-11-09 09:00:47,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776942489] [2021-11-09 09:00:47,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-09 09:00:47,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:47,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-09 09:00:47,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-09 09:00:47,902 INFO L87 Difference]: Start difference. First operand 309 states and 309 transitions. Second operand has 46 states, 45 states have (on average 6.7555555555555555) internal successors, (304), 45 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:48,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:00:48,050 INFO L93 Difference]: Finished difference Result 315 states and 315 transitions. [2021-11-09 09:00:48,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-09 09:00:48,050 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 6.7555555555555555) internal successors, (304), 45 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2021-11-09 09:00:48,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:00:48,052 INFO L225 Difference]: With dead ends: 315 [2021-11-09 09:00:48,052 INFO L226 Difference]: Without dead ends: 314 [2021-11-09 09:00:48,052 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-09 09:00:48,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-11-09 09:00:48,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 313. [2021-11-09 09:00:48,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 311 states have (on average 1.0064308681672025) internal successors, (313), 312 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:48,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 313 transitions. [2021-11-09 09:00:48,058 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 313 transitions. Word has length 304 [2021-11-09 09:00:48,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:00:48,058 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 313 transitions. [2021-11-09 09:00:48,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 6.7555555555555555) internal successors, (304), 45 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:48,059 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 313 transitions. [2021-11-09 09:00:48,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-09 09:00:48,061 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:00:48,061 INFO L513 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 43, 43, 43, 1, 1] [2021-11-09 09:00:48,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2021-11-09 09:00:48,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:48,274 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:00:48,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:00:48,274 INFO L85 PathProgramCache]: Analyzing trace with hash 653160733, now seen corresponding path program 43 times [2021-11-09 09:00:48,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:00:48,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623386378] [2021-11-09 09:00:48,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:00:48,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:00:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 6536 backedges. 0 proven. 6536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:49,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:49,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623386378] [2021-11-09 09:00:49,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623386378] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:49,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592271558] [2021-11-09 09:00:49,416 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:00:49,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:49,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:49,417 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:49,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-11-09 09:00:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:54,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-09 09:00:54,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:54,945 INFO L134 CoverageAnalysis]: Checked inductivity of 6536 backedges. 0 proven. 6536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:54,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592271558] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:54,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:54,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-11-09 09:00:54,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603098418] [2021-11-09 09:00:54,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-09 09:00:54,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:54,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-09 09:00:54,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-09 09:00:54,947 INFO L87 Difference]: Start difference. First operand 313 states and 313 transitions. Second operand has 46 states, 45 states have (on average 6.822222222222222) internal successors, (307), 45 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:55,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:00:55,105 INFO L93 Difference]: Finished difference Result 317 states and 317 transitions. [2021-11-09 09:00:55,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-09 09:00:55,106 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 6.822222222222222) internal successors, (307), 45 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 307 [2021-11-09 09:00:55,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:00:55,108 INFO L225 Difference]: With dead ends: 317 [2021-11-09 09:00:55,108 INFO L226 Difference]: Without dead ends: 316 [2021-11-09 09:00:55,108 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-09 09:00:55,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-09 09:00:55,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-11-09 09:00:55,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 314 states have (on average 1.0063694267515924) internal successors, (316), 315 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:55,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 316 transitions. [2021-11-09 09:00:55,116 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 316 transitions. Word has length 307 [2021-11-09 09:00:55,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:00:55,116 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 316 transitions. [2021-11-09 09:00:55,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 6.822222222222222) internal successors, (307), 45 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:55,117 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 316 transitions. [2021-11-09 09:00:55,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-11-09 09:00:55,119 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:00:55,119 INFO L513 BasicCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 1, 1] [2021-11-09 09:00:55,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2021-11-09 09:00:55,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable91 [2021-11-09 09:00:55,346 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:00:55,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:00:55,346 INFO L85 PathProgramCache]: Analyzing trace with hash 972954977, now seen corresponding path program 44 times [2021-11-09 09:00:55,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:00:55,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414188222] [2021-11-09 09:00:55,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:00:55,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:00:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:56,299 INFO L134 CoverageAnalysis]: Checked inductivity of 6710 backedges. 0 proven. 6710 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:56,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:56,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414188222] [2021-11-09 09:00:56,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414188222] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:56,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533150382] [2021-11-09 09:00:56,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:00:56,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:56,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:56,300 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:56,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2021-11-09 09:01:01,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:01:01,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:01:01,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-09 09:01:01,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:01:01,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6710 backedges. 0 proven. 6710 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:01,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533150382] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:01,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:01:01,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-11-09 09:01:01,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356509075] [2021-11-09 09:01:01,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-09 09:01:01,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:01:01,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-09 09:01:01,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-09 09:01:01,849 INFO L87 Difference]: Start difference. First operand 316 states and 316 transitions. Second operand has 47 states, 46 states have (on average 6.760869565217392) internal successors, (311), 46 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:01,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:01:01,967 INFO L93 Difference]: Finished difference Result 322 states and 322 transitions. [2021-11-09 09:01:01,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-09 09:01:01,968 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 6.760869565217392) internal successors, (311), 46 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 311 [2021-11-09 09:01:01,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:01:01,969 INFO L225 Difference]: With dead ends: 322 [2021-11-09 09:01:01,970 INFO L226 Difference]: Without dead ends: 321 [2021-11-09 09:01:01,970 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-09 09:01:01,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-09 09:01:01,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 320. [2021-11-09 09:01:01,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 318 states have (on average 1.0062893081761006) internal successors, (320), 319 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 320 transitions. [2021-11-09 09:01:01,975 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 320 transitions. Word has length 311 [2021-11-09 09:01:01,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:01:01,975 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 320 transitions. [2021-11-09 09:01:01,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 6.760869565217392) internal successors, (311), 46 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 320 transitions. [2021-11-09 09:01:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-09 09:01:01,977 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:01:01,977 INFO L513 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 44, 44, 44, 1, 1] [2021-11-09 09:01:02,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Forceful destruction successful, exit code 0 [2021-11-09 09:01:02,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:02,178 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:01:02,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:01:02,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1432517139, now seen corresponding path program 44 times [2021-11-09 09:01:02,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:01:02,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545312228] [2021-11-09 09:01:02,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:01:02,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:01:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:01:03,152 INFO L134 CoverageAnalysis]: Checked inductivity of 6842 backedges. 0 proven. 6842 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:03,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:01:03,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545312228] [2021-11-09 09:01:03,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545312228] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:03,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448491098] [2021-11-09 09:01:03,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:01:03,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:03,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:01:03,153 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:01:03,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2021-11-09 09:01:07,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:01:07,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:01:07,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-09 09:01:07,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:01:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 6842 backedges. 0 proven. 6842 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:08,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448491098] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:08,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:01:08,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-11-09 09:01:08,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547591425] [2021-11-09 09:01:08,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-09 09:01:08,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:01:08,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-09 09:01:08,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-09 09:01:08,518 INFO L87 Difference]: Start difference. First operand 320 states and 320 transitions. Second operand has 47 states, 46 states have (on average 6.826086956521739) internal successors, (314), 46 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:01:08,640 INFO L93 Difference]: Finished difference Result 324 states and 324 transitions. [2021-11-09 09:01:08,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-09 09:01:08,640 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 6.826086956521739) internal successors, (314), 46 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 314 [2021-11-09 09:01:08,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:01:08,642 INFO L225 Difference]: With dead ends: 324 [2021-11-09 09:01:08,642 INFO L226 Difference]: Without dead ends: 323 [2021-11-09 09:01:08,642 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-09 09:01:08,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-11-09 09:01:08,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-11-09 09:01:08,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 321 states have (on average 1.0062305295950156) internal successors, (323), 322 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:08,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 323 transitions. [2021-11-09 09:01:08,647 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 323 transitions. Word has length 314 [2021-11-09 09:01:08,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:01:08,647 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 323 transitions. [2021-11-09 09:01:08,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 6.826086956521739) internal successors, (314), 46 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:08,648 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 323 transitions. [2021-11-09 09:01:08,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-09 09:01:08,650 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:01:08,650 INFO L513 BasicCegarLoop]: trace histogram [46, 45, 45, 45, 45, 45, 45, 1, 1] [2021-11-09 09:01:08,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2021-11-09 09:01:08,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:08,850 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:01:08,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:01:08,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1937132081, now seen corresponding path program 45 times [2021-11-09 09:01:08,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:01:08,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575347120] [2021-11-09 09:01:08,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:01:08,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:01:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:01:09,948 INFO L134 CoverageAnalysis]: Checked inductivity of 7020 backedges. 0 proven. 7020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:09,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:01:09,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575347120] [2021-11-09 09:01:09,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575347120] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:09,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239799511] [2021-11-09 09:01:09,948 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:01:09,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:09,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:01:09,951 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:01:09,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-11-09 09:01:14,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-11-09 09:01:14,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:01:14,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-09 09:01:14,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:01:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7020 backedges. 0 proven. 7020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:15,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239799511] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:15,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:01:15,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-11-09 09:01:15,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796378935] [2021-11-09 09:01:15,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-09 09:01:15,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:01:15,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-09 09:01:15,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-09 09:01:15,495 INFO L87 Difference]: Start difference. First operand 323 states and 323 transitions. Second operand has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:15,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:01:15,625 INFO L93 Difference]: Finished difference Result 329 states and 329 transitions. [2021-11-09 09:01:15,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-09 09:01:15,626 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 318 [2021-11-09 09:01:15,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:01:15,627 INFO L225 Difference]: With dead ends: 329 [2021-11-09 09:01:15,627 INFO L226 Difference]: Without dead ends: 328 [2021-11-09 09:01:15,628 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-09 09:01:15,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-11-09 09:01:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 327. [2021-11-09 09:01:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 325 states have (on average 1.0061538461538462) internal successors, (327), 326 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:15,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 327 transitions. [2021-11-09 09:01:15,635 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 327 transitions. Word has length 318 [2021-11-09 09:01:15,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:01:15,635 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 327 transitions. [2021-11-09 09:01:15,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:15,635 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 327 transitions. [2021-11-09 09:01:15,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-09 09:01:15,637 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:01:15,638 INFO L513 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 45, 45, 45, 1, 1] [2021-11-09 09:01:15,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2021-11-09 09:01:15,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:15,838 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:01:15,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:01:15,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1921279773, now seen corresponding path program 45 times [2021-11-09 09:01:15,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:01:15,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511585648] [2021-11-09 09:01:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:01:15,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:01:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:01:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 7155 backedges. 0 proven. 7155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:16,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:01:16,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511585648] [2021-11-09 09:01:16,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511585648] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:16,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099659505] [2021-11-09 09:01:16,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:01:16,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:16,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:01:16,879 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:01:16,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2021-11-09 09:01:21,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-11-09 09:01:21,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:01:21,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-09 09:01:21,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:01:22,391 INFO L134 CoverageAnalysis]: Checked inductivity of 7155 backedges. 0 proven. 7155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:22,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099659505] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:22,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:01:22,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-11-09 09:01:22,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547423658] [2021-11-09 09:01:22,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-09 09:01:22,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:01:22,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-09 09:01:22,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-09 09:01:22,393 INFO L87 Difference]: Start difference. First operand 327 states and 327 transitions. Second operand has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 47 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:22,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:01:22,509 INFO L93 Difference]: Finished difference Result 331 states and 331 transitions. [2021-11-09 09:01:22,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-09 09:01:22,509 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 47 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2021-11-09 09:01:22,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:01:22,511 INFO L225 Difference]: With dead ends: 331 [2021-11-09 09:01:22,512 INFO L226 Difference]: Without dead ends: 330 [2021-11-09 09:01:22,512 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-09 09:01:22,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-09 09:01:22,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2021-11-09 09:01:22,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 328 states have (on average 1.0060975609756098) internal successors, (330), 329 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:22,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 330 transitions. [2021-11-09 09:01:22,521 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 330 transitions. Word has length 321 [2021-11-09 09:01:22,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:01:22,521 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 330 transitions. [2021-11-09 09:01:22,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 47 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:22,522 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 330 transitions. [2021-11-09 09:01:22,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-09 09:01:22,524 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:01:22,524 INFO L513 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 1, 1] [2021-11-09 09:01:22,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0 [2021-11-09 09:01:22,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:22,738 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:01:22,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:01:22,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1034490721, now seen corresponding path program 46 times [2021-11-09 09:01:22,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:01:22,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719661850] [2021-11-09 09:01:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:01:22,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:01:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:01:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:24,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:01:24,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719661850] [2021-11-09 09:01:24,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719661850] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:24,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290409113] [2021-11-09 09:01:24,064 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:01:24,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:24,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:01:24,065 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:01:24,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2021-11-09 09:01:29,233 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:01:29,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:01:29,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-09 09:01:29,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:01:30,129 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:30,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290409113] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:30,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:01:30,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2021-11-09 09:01:30,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92023979] [2021-11-09 09:01:30,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-09 09:01:30,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:01:30,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-09 09:01:30,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-09 09:01:30,131 INFO L87 Difference]: Start difference. First operand 330 states and 330 transitions. Second operand has 49 states, 48 states have (on average 6.770833333333333) internal successors, (325), 48 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:30,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:01:30,263 INFO L93 Difference]: Finished difference Result 336 states and 336 transitions. [2021-11-09 09:01:30,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-09 09:01:30,264 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 6.770833333333333) internal successors, (325), 48 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2021-11-09 09:01:30,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:01:30,266 INFO L225 Difference]: With dead ends: 336 [2021-11-09 09:01:30,266 INFO L226 Difference]: Without dead ends: 335 [2021-11-09 09:01:30,266 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-09 09:01:30,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-11-09 09:01:30,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 334. [2021-11-09 09:01:30,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 332 states have (on average 1.0060240963855422) internal successors, (334), 333 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:30,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 334 transitions. [2021-11-09 09:01:30,272 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 334 transitions. Word has length 325 [2021-11-09 09:01:30,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:01:30,272 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 334 transitions. [2021-11-09 09:01:30,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 6.770833333333333) internal successors, (325), 48 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:30,272 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 334 transitions. [2021-11-09 09:01:30,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-09 09:01:30,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:01:30,274 INFO L513 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 1, 1] [2021-11-09 09:01:30,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2021-11-09 09:01:30,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:30,475 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:01:30,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:01:30,475 INFO L85 PathProgramCache]: Analyzing trace with hash 2122764269, now seen corresponding path program 46 times [2021-11-09 09:01:30,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:01:30,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7677271] [2021-11-09 09:01:30,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:01:30,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:01:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:01:31,633 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:31,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:01:31,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7677271] [2021-11-09 09:01:31,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7677271] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:31,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770609258] [2021-11-09 09:01:31,634 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:01:31,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:31,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:01:31,635 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:01:31,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2021-11-09 09:01:36,773 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:01:36,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:01:36,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-09 09:01:36,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:01:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:37,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770609258] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:37,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:01:37,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2021-11-09 09:01:37,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078855617] [2021-11-09 09:01:37,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-09 09:01:37,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:01:37,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-09 09:01:37,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-09 09:01:37,720 INFO L87 Difference]: Start difference. First operand 334 states and 334 transitions. Second operand has 49 states, 48 states have (on average 6.833333333333333) internal successors, (328), 48 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:37,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:01:37,890 INFO L93 Difference]: Finished difference Result 338 states and 338 transitions. [2021-11-09 09:01:37,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-09 09:01:37,890 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 6.833333333333333) internal successors, (328), 48 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 328 [2021-11-09 09:01:37,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:01:37,892 INFO L225 Difference]: With dead ends: 338 [2021-11-09 09:01:37,892 INFO L226 Difference]: Without dead ends: 337 [2021-11-09 09:01:37,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-09 09:01:37,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-11-09 09:01:37,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2021-11-09 09:01:37,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 335 states have (on average 1.0059701492537314) internal successors, (337), 336 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:37,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 337 transitions. [2021-11-09 09:01:37,900 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 337 transitions. Word has length 328 [2021-11-09 09:01:37,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:01:37,900 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 337 transitions. [2021-11-09 09:01:37,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 6.833333333333333) internal successors, (328), 48 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 337 transitions. [2021-11-09 09:01:37,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-11-09 09:01:37,903 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:01:37,903 INFO L513 BasicCegarLoop]: trace histogram [48, 47, 47, 47, 47, 47, 47, 1, 1] [2021-11-09 09:01:37,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2021-11-09 09:01:38,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2021-11-09 09:01:38,104 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:01:38,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:01:38,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1034589233, now seen corresponding path program 47 times [2021-11-09 09:01:38,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:01:38,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844606008] [2021-11-09 09:01:38,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:01:38,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:01:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:01:39,284 INFO L134 CoverageAnalysis]: Checked inductivity of 7661 backedges. 0 proven. 7661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:39,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:01:39,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844606008] [2021-11-09 09:01:39,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844606008] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:39,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350263008] [2021-11-09 09:01:39,285 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 09:01:39,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:39,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:01:39,289 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:01:39,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2021-11-09 09:01:44,490 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-11-09 09:01:44,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:01:44,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-09 09:01:44,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:01:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7661 backedges. 0 proven. 7661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:45,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350263008] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:45,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:01:45,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-11-09 09:01:45,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064231859] [2021-11-09 09:01:45,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-11-09 09:01:45,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:01:45,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-11-09 09:01:45,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-09 09:01:45,476 INFO L87 Difference]: Start difference. First operand 337 states and 337 transitions. Second operand has 50 states, 49 states have (on average 6.775510204081633) internal successors, (332), 49 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:45,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:01:45,612 INFO L93 Difference]: Finished difference Result 343 states and 343 transitions. [2021-11-09 09:01:45,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-09 09:01:45,613 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 6.775510204081633) internal successors, (332), 49 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2021-11-09 09:01:45,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:01:45,615 INFO L225 Difference]: With dead ends: 343 [2021-11-09 09:01:45,615 INFO L226 Difference]: Without dead ends: 342 [2021-11-09 09:01:45,615 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-09 09:01:45,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-09 09:01:45,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 341. [2021-11-09 09:01:45,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 339 states have (on average 1.0058997050147493) internal successors, (341), 340 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:45,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 341 transitions. [2021-11-09 09:01:45,621 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 341 transitions. Word has length 332 [2021-11-09 09:01:45,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:01:45,621 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 341 transitions. [2021-11-09 09:01:45,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 6.775510204081633) internal successors, (332), 49 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:45,621 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 341 transitions. [2021-11-09 09:01:45,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-09 09:01:45,623 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:01:45,624 INFO L513 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 47, 47, 47, 1, 1] [2021-11-09 09:01:45,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2021-11-09 09:01:45,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:45,826 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:01:45,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:01:45,826 INFO L85 PathProgramCache]: Analyzing trace with hash 762567965, now seen corresponding path program 47 times [2021-11-09 09:01:45,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:01:45,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584356975] [2021-11-09 09:01:45,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:01:45,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:01:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:01:47,027 INFO L134 CoverageAnalysis]: Checked inductivity of 7802 backedges. 0 proven. 7802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:47,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:01:47,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584356975] [2021-11-09 09:01:47,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584356975] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:47,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76749321] [2021-11-09 09:01:47,028 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 09:01:47,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:47,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:01:47,029 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:01:47,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-11-09 09:01:52,768 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-11-09 09:01:52,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:01:52,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-09 09:01:52,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:01:53,856 INFO L134 CoverageAnalysis]: Checked inductivity of 7802 backedges. 0 proven. 7802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:53,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76749321] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:53,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:01:53,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-11-09 09:01:53,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052201723] [2021-11-09 09:01:53,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-11-09 09:01:53,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:01:53,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-11-09 09:01:53,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-09 09:01:53,859 INFO L87 Difference]: Start difference. First operand 341 states and 341 transitions. Second operand has 50 states, 49 states have (on average 6.836734693877551) internal successors, (335), 49 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:54,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:01:54,072 INFO L93 Difference]: Finished difference Result 345 states and 345 transitions. [2021-11-09 09:01:54,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-09 09:01:54,072 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 6.836734693877551) internal successors, (335), 49 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 335 [2021-11-09 09:01:54,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:01:54,075 INFO L225 Difference]: With dead ends: 345 [2021-11-09 09:01:54,075 INFO L226 Difference]: Without dead ends: 344 [2021-11-09 09:01:54,076 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-09 09:01:54,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-11-09 09:01:54,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2021-11-09 09:01:54,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 342 states have (on average 1.0058479532163742) internal successors, (344), 343 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 344 transitions. [2021-11-09 09:01:54,085 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 344 transitions. Word has length 335 [2021-11-09 09:01:54,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:01:54,086 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 344 transitions. [2021-11-09 09:01:54,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 6.836734693877551) internal successors, (335), 49 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 344 transitions. [2021-11-09 09:01:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-11-09 09:01:54,088 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:01:54,091 INFO L513 BasicCegarLoop]: trace histogram [49, 48, 48, 48, 48, 48, 48, 1, 1] [2021-11-09 09:01:54,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2021-11-09 09:01:54,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:54,318 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:01:54,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:01:54,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1743620449, now seen corresponding path program 48 times [2021-11-09 09:01:54,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:01:54,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622333239] [2021-11-09 09:01:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:01:54,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:01:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:01:55,783 INFO L134 CoverageAnalysis]: Checked inductivity of 7992 backedges. 0 proven. 7992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:55,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:01:55,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622333239] [2021-11-09 09:01:55,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622333239] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:55,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007640924] [2021-11-09 09:01:55,783 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 09:01:55,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:55,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:01:55,784 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:01:55,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-11-09 09:02:01,860 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-11-09 09:02:01,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:02:01,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-09 09:02:01,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:02:02,890 INFO L134 CoverageAnalysis]: Checked inductivity of 7992 backedges. 0 proven. 7992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:02,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007640924] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:02,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:02:02,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-11-09 09:02:02,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814663802] [2021-11-09 09:02:02,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-11-09 09:02:02,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:02:02,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-11-09 09:02:02,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-09 09:02:02,894 INFO L87 Difference]: Start difference. First operand 344 states and 344 transitions. Second operand has 51 states, 50 states have (on average 6.78) internal successors, (339), 50 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:03,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:02:03,034 INFO L93 Difference]: Finished difference Result 350 states and 350 transitions. [2021-11-09 09:02:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-09 09:02:03,034 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 6.78) internal successors, (339), 50 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 339 [2021-11-09 09:02:03,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:02:03,036 INFO L225 Difference]: With dead ends: 350 [2021-11-09 09:02:03,037 INFO L226 Difference]: Without dead ends: 349 [2021-11-09 09:02:03,037 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-09 09:02:03,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-11-09 09:02:03,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 348. [2021-11-09 09:02:03,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 346 states have (on average 1.0057803468208093) internal successors, (348), 347 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:03,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 348 transitions. [2021-11-09 09:02:03,046 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 348 transitions. Word has length 339 [2021-11-09 09:02:03,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:02:03,047 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 348 transitions. [2021-11-09 09:02:03,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 6.78) internal successors, (339), 50 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:03,047 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 348 transitions. [2021-11-09 09:02:03,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-11-09 09:02:03,050 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:02:03,050 INFO L513 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 48, 48, 48, 1, 1] [2021-11-09 09:02:03,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2021-11-09 09:02:03,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-11-09 09:02:03,267 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:02:03,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:02:03,267 INFO L85 PathProgramCache]: Analyzing trace with hash 862362093, now seen corresponding path program 48 times [2021-11-09 09:02:03,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:02:03,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338546367] [2021-11-09 09:02:03,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:02:03,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:02:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:02:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 8136 backedges. 0 proven. 8136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:04,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:02:04,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338546367] [2021-11-09 09:02:04,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338546367] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:04,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344919621] [2021-11-09 09:02:04,472 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 09:02:04,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:04,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:02:04,474 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:02:04,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2021-11-09 09:02:10,562 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-11-09 09:02:10,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:02:10,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-09 09:02:10,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:02:11,475 INFO L134 CoverageAnalysis]: Checked inductivity of 8136 backedges. 0 proven. 8136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:11,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344919621] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:11,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:02:11,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-11-09 09:02:11,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107244047] [2021-11-09 09:02:11,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-11-09 09:02:11,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:02:11,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-11-09 09:02:11,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-09 09:02:11,478 INFO L87 Difference]: Start difference. First operand 348 states and 348 transitions. Second operand has 51 states, 50 states have (on average 6.84) internal successors, (342), 50 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:11,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:02:11,641 INFO L93 Difference]: Finished difference Result 352 states and 352 transitions. [2021-11-09 09:02:11,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-09 09:02:11,642 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 6.84) internal successors, (342), 50 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 342 [2021-11-09 09:02:11,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:02:11,644 INFO L225 Difference]: With dead ends: 352 [2021-11-09 09:02:11,644 INFO L226 Difference]: Without dead ends: 351 [2021-11-09 09:02:11,644 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-09 09:02:11,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-09 09:02:11,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-11-09 09:02:11,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 349 states have (on average 1.005730659025788) internal successors, (351), 350 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 351 transitions. [2021-11-09 09:02:11,653 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 351 transitions. Word has length 342 [2021-11-09 09:02:11,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:02:11,654 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 351 transitions. [2021-11-09 09:02:11,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 6.84) internal successors, (342), 50 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:11,654 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 351 transitions. [2021-11-09 09:02:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-09 09:02:11,657 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:02:11,657 INFO L513 BasicCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 1, 1] [2021-11-09 09:02:11,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2021-11-09 09:02:11,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-11-09 09:02:11,862 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:02:11,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:02:11,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1986699727, now seen corresponding path program 49 times [2021-11-09 09:02:11,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:02:11,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764182383] [2021-11-09 09:02:11,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:02:11,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:02:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:02:13,234 INFO L134 CoverageAnalysis]: Checked inductivity of 8330 backedges. 0 proven. 8330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:13,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:02:13,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764182383] [2021-11-09 09:02:13,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764182383] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:13,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702841525] [2021-11-09 09:02:13,235 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:02:13,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:13,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:02:13,238 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:02:13,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-11-09 09:02:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:02:18,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-09 09:02:18,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:02:19,707 INFO L134 CoverageAnalysis]: Checked inductivity of 8330 backedges. 0 proven. 8330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:19,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702841525] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:19,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:02:19,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-11-09 09:02:19,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197822822] [2021-11-09 09:02:19,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-11-09 09:02:19,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:02:19,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-11-09 09:02:19,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-09 09:02:19,709 INFO L87 Difference]: Start difference. First operand 351 states and 351 transitions. Second operand has 52 states, 51 states have (on average 6.784313725490196) internal successors, (346), 51 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:19,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:02:19,873 INFO L93 Difference]: Finished difference Result 357 states and 357 transitions. [2021-11-09 09:02:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-09 09:02:19,873 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 6.784313725490196) internal successors, (346), 51 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 346 [2021-11-09 09:02:19,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:02:19,874 INFO L225 Difference]: With dead ends: 357 [2021-11-09 09:02:19,874 INFO L226 Difference]: Without dead ends: 356 [2021-11-09 09:02:19,875 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-09 09:02:19,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-11-09 09:02:19,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 355. [2021-11-09 09:02:19,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 353 states have (on average 1.0056657223796035) internal successors, (355), 354 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:19,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 355 transitions. [2021-11-09 09:02:19,879 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 355 transitions. Word has length 346 [2021-11-09 09:02:19,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:02:19,880 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 355 transitions. [2021-11-09 09:02:19,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 6.784313725490196) internal successors, (346), 51 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:19,880 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 355 transitions. [2021-11-09 09:02:19,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-11-09 09:02:19,881 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:02:19,881 INFO L513 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 49, 49, 49, 1, 1] [2021-11-09 09:02:19,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2021-11-09 09:02:20,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-11-09 09:02:20,082 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:02:20,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:02:20,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1122184419, now seen corresponding path program 49 times [2021-11-09 09:02:20,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:02:20,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269955202] [2021-11-09 09:02:20,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:02:20,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:02:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:02:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 8477 backedges. 0 proven. 8477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:21,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:02:21,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269955202] [2021-11-09 09:02:21,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269955202] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:21,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289097231] [2021-11-09 09:02:21,318 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:02:21,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:21,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:02:21,319 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:02:21,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2021-11-09 09:02:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:02:26,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-09 09:02:26,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:02:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 8477 backedges. 0 proven. 8477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:28,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289097231] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:28,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:02:28,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-11-09 09:02:28,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820725026] [2021-11-09 09:02:28,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-11-09 09:02:28,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:02:28,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-11-09 09:02:28,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-09 09:02:28,123 INFO L87 Difference]: Start difference. First operand 355 states and 355 transitions. Second operand has 52 states, 51 states have (on average 6.8431372549019605) internal successors, (349), 51 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:28,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:02:28,304 INFO L93 Difference]: Finished difference Result 359 states and 359 transitions. [2021-11-09 09:02:28,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-09 09:02:28,305 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 6.8431372549019605) internal successors, (349), 51 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 349 [2021-11-09 09:02:28,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:02:28,306 INFO L225 Difference]: With dead ends: 359 [2021-11-09 09:02:28,306 INFO L226 Difference]: Without dead ends: 358 [2021-11-09 09:02:28,306 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-09 09:02:28,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-09 09:02:28,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2021-11-09 09:02:28,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 356 states have (on average 1.0056179775280898) internal successors, (358), 357 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:28,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 358 transitions. [2021-11-09 09:02:28,311 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 358 transitions. Word has length 349 [2021-11-09 09:02:28,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:02:28,311 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 358 transitions. [2021-11-09 09:02:28,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 6.8431372549019605) internal successors, (349), 51 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:28,311 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 358 transitions. [2021-11-09 09:02:28,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-11-09 09:02:28,313 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:02:28,313 INFO L513 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1] [2021-11-09 09:02:28,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Forceful destruction successful, exit code 0 [2021-11-09 09:02:28,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-11-09 09:02:28,513 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:02:28,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:02:28,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1848344417, now seen corresponding path program 50 times [2021-11-09 09:02:28,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:02:28,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600854347] [2021-11-09 09:02:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:02:28,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:02:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:02:29,790 INFO L134 CoverageAnalysis]: Checked inductivity of 8675 backedges. 0 proven. 8675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:29,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:02:29,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600854347] [2021-11-09 09:02:29,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600854347] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:29,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026271811] [2021-11-09 09:02:29,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:02:29,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:29,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:02:29,794 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:02:29,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2021-11-09 09:02:36,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:02:36,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:02:36,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-09 09:02:36,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:02:37,304 INFO L134 CoverageAnalysis]: Checked inductivity of 8675 backedges. 0 proven. 8675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:37,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026271811] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:37,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:02:37,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2021-11-09 09:02:37,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210910676] [2021-11-09 09:02:37,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-09 09:02:37,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:02:37,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-09 09:02:37,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-09 09:02:37,306 INFO L87 Difference]: Start difference. First operand 358 states and 358 transitions. Second operand has 53 states, 52 states have (on average 6.788461538461538) internal successors, (353), 52 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:37,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:02:37,458 INFO L93 Difference]: Finished difference Result 364 states and 364 transitions. [2021-11-09 09:02:37,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-09 09:02:37,459 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 6.788461538461538) internal successors, (353), 52 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 353 [2021-11-09 09:02:37,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:02:37,460 INFO L225 Difference]: With dead ends: 364 [2021-11-09 09:02:37,460 INFO L226 Difference]: Without dead ends: 363 [2021-11-09 09:02:37,460 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-09 09:02:37,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2021-11-09 09:02:37,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 362. [2021-11-09 09:02:37,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 360 states have (on average 1.0055555555555555) internal successors, (362), 361 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:37,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 362 transitions. [2021-11-09 09:02:37,467 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 362 transitions. Word has length 353 [2021-11-09 09:02:37,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:02:37,468 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 362 transitions. [2021-11-09 09:02:37,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 6.788461538461538) internal successors, (353), 52 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:37,468 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 362 transitions. [2021-11-09 09:02:37,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-11-09 09:02:37,469 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:02:37,469 INFO L513 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 50, 50, 50, 1, 1] [2021-11-09 09:02:37,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2021-11-09 09:02:37,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:37,670 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:02:37,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:02:37,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1747131411, now seen corresponding path program 50 times [2021-11-09 09:02:37,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:02:37,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858621270] [2021-11-09 09:02:37,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:02:37,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:02:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:02:38,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8825 backedges. 0 proven. 8825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:38,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:02:38,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858621270] [2021-11-09 09:02:38,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858621270] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:38,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647186918] [2021-11-09 09:02:38,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:02:38,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:38,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:02:38,985 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:02:38,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2021-11-09 09:02:45,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:02:45,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:02:45,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-09 09:02:45,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:02:46,071 INFO L134 CoverageAnalysis]: Checked inductivity of 8825 backedges. 0 proven. 8825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:46,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647186918] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:46,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:02:46,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2021-11-09 09:02:46,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682152529] [2021-11-09 09:02:46,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-09 09:02:46,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:02:46,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-09 09:02:46,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-09 09:02:46,073 INFO L87 Difference]: Start difference. First operand 362 states and 362 transitions. Second operand has 53 states, 52 states have (on average 6.846153846153846) internal successors, (356), 52 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:46,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:02:46,213 INFO L93 Difference]: Finished difference Result 366 states and 366 transitions. [2021-11-09 09:02:46,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-09 09:02:46,213 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 6.846153846153846) internal successors, (356), 52 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2021-11-09 09:02:46,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:02:46,214 INFO L225 Difference]: With dead ends: 366 [2021-11-09 09:02:46,214 INFO L226 Difference]: Without dead ends: 365 [2021-11-09 09:02:46,215 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-09 09:02:46,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-09 09:02:46,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-11-09 09:02:46,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 363 states have (on average 1.0055096418732783) internal successors, (365), 364 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:46,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 365 transitions. [2021-11-09 09:02:46,219 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 365 transitions. Word has length 356 [2021-11-09 09:02:46,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:02:46,219 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 365 transitions. [2021-11-09 09:02:46,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 6.846153846153846) internal successors, (356), 52 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:46,220 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 365 transitions. [2021-11-09 09:02:46,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-11-09 09:02:46,221 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:02:46,221 INFO L513 BasicCegarLoop]: trace histogram [52, 51, 51, 51, 51, 51, 51, 1, 1] [2021-11-09 09:02:46,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2021-11-09 09:02:46,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:46,421 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:02:46,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:02:46,422 INFO L85 PathProgramCache]: Analyzing trace with hash -707352527, now seen corresponding path program 51 times [2021-11-09 09:02:46,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:02:46,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117350481] [2021-11-09 09:02:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:02:46,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:02:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:02:47,670 INFO L134 CoverageAnalysis]: Checked inductivity of 9027 backedges. 0 proven. 9027 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:47,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:02:47,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117350481] [2021-11-09 09:02:47,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117350481] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:47,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838988289] [2021-11-09 09:02:47,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:02:47,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:47,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:02:47,671 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:02:47,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2021-11-09 09:02:53,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-11-09 09:02:53,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:02:53,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-09 09:02:53,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:02:54,431 INFO L134 CoverageAnalysis]: Checked inductivity of 9027 backedges. 0 proven. 9027 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:54,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838988289] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:54,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:02:54,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-11-09 09:02:54,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772107519] [2021-11-09 09:02:54,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-11-09 09:02:54,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:02:54,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-11-09 09:02:54,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-09 09:02:54,433 INFO L87 Difference]: Start difference. First operand 365 states and 365 transitions. Second operand has 54 states, 53 states have (on average 6.7924528301886795) internal successors, (360), 53 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:54,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:02:54,587 INFO L93 Difference]: Finished difference Result 371 states and 371 transitions. [2021-11-09 09:02:54,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-09 09:02:54,587 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 6.7924528301886795) internal successors, (360), 53 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2021-11-09 09:02:54,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:02:54,588 INFO L225 Difference]: With dead ends: 371 [2021-11-09 09:02:54,588 INFO L226 Difference]: Without dead ends: 370 [2021-11-09 09:02:54,589 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-09 09:02:54,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-11-09 09:02:54,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 369. [2021-11-09 09:02:54,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 367 states have (on average 1.005449591280654) internal successors, (369), 368 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:54,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 369 transitions. [2021-11-09 09:02:54,593 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 369 transitions. Word has length 360 [2021-11-09 09:02:54,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:02:54,593 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 369 transitions. [2021-11-09 09:02:54,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 6.7924528301886795) internal successors, (360), 53 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:54,594 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 369 transitions. [2021-11-09 09:02:54,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-11-09 09:02:54,595 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:02:54,595 INFO L513 BasicCegarLoop]: trace histogram [52, 52, 52, 52, 51, 51, 51, 1, 1] [2021-11-09 09:02:54,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2021-11-09 09:02:54,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:54,796 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:02:54,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:02:54,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1629533923, now seen corresponding path program 51 times [2021-11-09 09:02:54,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:02:54,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905686983] [2021-11-09 09:02:54,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:02:54,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:02:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:02:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:02:56,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:02:56,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905686983] [2021-11-09 09:02:56,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905686983] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:56,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053011244] [2021-11-09 09:02:56,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:02:56,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:56,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:02:56,110 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:02:56,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2021-11-09 09:03:01,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-11-09 09:03:01,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:03:01,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-09 09:03:01,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:03:02,843 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:02,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053011244] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:02,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:03:02,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-11-09 09:03:02,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493564539] [2021-11-09 09:03:02,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-11-09 09:03:02,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:03:02,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-11-09 09:03:02,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-09 09:03:02,845 INFO L87 Difference]: Start difference. First operand 369 states and 369 transitions. Second operand has 54 states, 53 states have (on average 6.849056603773585) internal successors, (363), 53 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:02,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:03:02,981 INFO L93 Difference]: Finished difference Result 373 states and 373 transitions. [2021-11-09 09:03:02,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-09 09:03:02,981 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 6.849056603773585) internal successors, (363), 53 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 363 [2021-11-09 09:03:02,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:03:02,982 INFO L225 Difference]: With dead ends: 373 [2021-11-09 09:03:02,982 INFO L226 Difference]: Without dead ends: 372 [2021-11-09 09:03:02,983 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-09 09:03:02,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-11-09 09:03:02,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2021-11-09 09:03:02,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 370 states have (on average 1.0054054054054054) internal successors, (372), 371 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:02,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 372 transitions. [2021-11-09 09:03:02,990 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 372 transitions. Word has length 363 [2021-11-09 09:03:02,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:03:02,990 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 372 transitions. [2021-11-09 09:03:02,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 6.849056603773585) internal successors, (363), 53 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:02,991 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 372 transitions. [2021-11-09 09:03:02,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-11-09 09:03:02,993 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:03:02,993 INFO L513 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1] [2021-11-09 09:03:03,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2021-11-09 09:03:03,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2021-11-09 09:03:03,211 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:03:03,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:03:03,211 INFO L85 PathProgramCache]: Analyzing trace with hash 499316065, now seen corresponding path program 52 times [2021-11-09 09:03:03,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:03:03,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881582614] [2021-11-09 09:03:03,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:03:03,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:03:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:03:04,602 INFO L134 CoverageAnalysis]: Checked inductivity of 9386 backedges. 0 proven. 9386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:04,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:03:04,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881582614] [2021-11-09 09:03:04,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881582614] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:04,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075595830] [2021-11-09 09:03:04,603 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:03:04,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:03:04,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:03:04,604 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:03:04,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2021-11-09 09:03:10,940 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:03:10,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:03:10,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-09 09:03:10,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:03:11,993 INFO L134 CoverageAnalysis]: Checked inductivity of 9386 backedges. 0 proven. 9386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:11,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075595830] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:11,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:03:11,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2021-11-09 09:03:11,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980557627] [2021-11-09 09:03:11,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-09 09:03:11,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:03:11,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-09 09:03:11,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-09 09:03:11,995 INFO L87 Difference]: Start difference. First operand 372 states and 372 transitions. Second operand has 55 states, 54 states have (on average 6.796296296296297) internal successors, (367), 54 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:12,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:03:12,177 INFO L93 Difference]: Finished difference Result 378 states and 378 transitions. [2021-11-09 09:03:12,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-09 09:03:12,178 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 6.796296296296297) internal successors, (367), 54 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 367 [2021-11-09 09:03:12,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:03:12,179 INFO L225 Difference]: With dead ends: 378 [2021-11-09 09:03:12,179 INFO L226 Difference]: Without dead ends: 377 [2021-11-09 09:03:12,179 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-09 09:03:12,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-09 09:03:12,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 376. [2021-11-09 09:03:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 374 states have (on average 1.0053475935828877) internal successors, (376), 375 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:12,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 376 transitions. [2021-11-09 09:03:12,186 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 376 transitions. Word has length 367 [2021-11-09 09:03:12,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:03:12,186 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 376 transitions. [2021-11-09 09:03:12,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 6.796296296296297) internal successors, (367), 54 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:12,186 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 376 transitions. [2021-11-09 09:03:12,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-11-09 09:03:12,188 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:03:12,189 INFO L513 BasicCegarLoop]: trace histogram [53, 53, 53, 53, 52, 52, 52, 1, 1] [2021-11-09 09:03:12,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Forceful destruction successful, exit code 0 [2021-11-09 09:03:12,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:03:12,389 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:03:12,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:03:12,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1653190125, now seen corresponding path program 52 times [2021-11-09 09:03:12,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:03:12,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104168984] [2021-11-09 09:03:12,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:03:12,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:03:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:03:13,688 INFO L134 CoverageAnalysis]: Checked inductivity of 9542 backedges. 0 proven. 9542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:13,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:03:13,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104168984] [2021-11-09 09:03:13,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104168984] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:13,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974050231] [2021-11-09 09:03:13,688 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:03:13,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:03:13,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:03:13,689 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:03:13,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2021-11-09 09:03:19,908 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:03:19,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:03:19,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-09 09:03:19,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:03:21,057 INFO L134 CoverageAnalysis]: Checked inductivity of 9542 backedges. 0 proven. 9542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:21,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974050231] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:21,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:03:21,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2021-11-09 09:03:21,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459963215] [2021-11-09 09:03:21,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-09 09:03:21,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:03:21,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-09 09:03:21,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-09 09:03:21,060 INFO L87 Difference]: Start difference. First operand 376 states and 376 transitions. Second operand has 55 states, 54 states have (on average 6.851851851851852) internal successors, (370), 54 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:03:21,215 INFO L93 Difference]: Finished difference Result 380 states and 380 transitions. [2021-11-09 09:03:21,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-09 09:03:21,216 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 6.851851851851852) internal successors, (370), 54 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 370 [2021-11-09 09:03:21,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:03:21,217 INFO L225 Difference]: With dead ends: 380 [2021-11-09 09:03:21,217 INFO L226 Difference]: Without dead ends: 379 [2021-11-09 09:03:21,217 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-09 09:03:21,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-11-09 09:03:21,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2021-11-09 09:03:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 377 states have (on average 1.0053050397877985) internal successors, (379), 378 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 379 transitions. [2021-11-09 09:03:21,222 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 379 transitions. Word has length 370 [2021-11-09 09:03:21,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:03:21,222 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 379 transitions. [2021-11-09 09:03:21,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 6.851851851851852) internal successors, (370), 54 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:21,223 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 379 transitions. [2021-11-09 09:03:21,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-11-09 09:03:21,224 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:03:21,224 INFO L513 BasicCegarLoop]: trace histogram [54, 53, 53, 53, 53, 53, 53, 1, 1] [2021-11-09 09:03:21,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2021-11-09 09:03:21,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2021-11-09 09:03:21,425 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:03:21,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:03:21,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1995541967, now seen corresponding path program 53 times [2021-11-09 09:03:21,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:03:21,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580689031] [2021-11-09 09:03:21,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:03:21,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:03:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:03:22,672 INFO L134 CoverageAnalysis]: Checked inductivity of 9752 backedges. 0 proven. 9752 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:22,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:03:22,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580689031] [2021-11-09 09:03:22,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580689031] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:22,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800362715] [2021-11-09 09:03:22,673 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 09:03:22,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:03:22,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:03:22,674 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:03:22,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2021-11-09 09:03:29,106 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-11-09 09:03:29,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:03:29,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-09 09:03:29,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:03:30,168 INFO L134 CoverageAnalysis]: Checked inductivity of 9752 backedges. 0 proven. 9752 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:30,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800362715] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:30,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:03:30,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 54 [2021-11-09 09:03:30,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057660913] [2021-11-09 09:03:30,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-11-09 09:03:30,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:03:30,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-11-09 09:03:30,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-09 09:03:30,171 INFO L87 Difference]: Start difference. First operand 379 states and 379 transitions. Second operand has 56 states, 55 states have (on average 6.8) internal successors, (374), 55 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:30,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:03:30,332 INFO L93 Difference]: Finished difference Result 385 states and 385 transitions. [2021-11-09 09:03:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-09 09:03:30,333 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 6.8) internal successors, (374), 55 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 374 [2021-11-09 09:03:30,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:03:30,334 INFO L225 Difference]: With dead ends: 385 [2021-11-09 09:03:30,334 INFO L226 Difference]: Without dead ends: 384 [2021-11-09 09:03:30,335 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-09 09:03:30,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-09 09:03:30,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 383. [2021-11-09 09:03:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 381 states have (on average 1.005249343832021) internal successors, (383), 382 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:30,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 383 transitions. [2021-11-09 09:03:30,342 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 383 transitions. Word has length 374 [2021-11-09 09:03:30,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:03:30,342 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 383 transitions. [2021-11-09 09:03:30,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 6.8) internal successors, (374), 55 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:30,342 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 383 transitions. [2021-11-09 09:03:30,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-11-09 09:03:30,344 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:03:30,344 INFO L513 BasicCegarLoop]: trace histogram [54, 54, 54, 54, 53, 53, 53, 1, 1] [2021-11-09 09:03:30,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2021-11-09 09:03:30,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:03:30,544 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:03:30,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:03:30,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1746616093, now seen corresponding path program 53 times [2021-11-09 09:03:30,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:03:30,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891404040] [2021-11-09 09:03:30,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:03:30,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:03:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:03:31,884 INFO L134 CoverageAnalysis]: Checked inductivity of 9911 backedges. 0 proven. 9911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:31,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:03:31,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891404040] [2021-11-09 09:03:31,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891404040] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:31,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984576585] [2021-11-09 09:03:31,884 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 09:03:31,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:03:31,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:03:31,885 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:03:31,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2021-11-09 09:03:38,356 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-11-09 09:03:38,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:03:38,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-09 09:03:38,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:03:39,539 INFO L134 CoverageAnalysis]: Checked inductivity of 9911 backedges. 0 proven. 9911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:39,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984576585] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:39,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:03:39,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 54 [2021-11-09 09:03:39,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213719537] [2021-11-09 09:03:39,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-11-09 09:03:39,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:03:39,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-11-09 09:03:39,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-09 09:03:39,541 INFO L87 Difference]: Start difference. First operand 383 states and 383 transitions. Second operand has 56 states, 55 states have (on average 6.8545454545454545) internal successors, (377), 55 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:39,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:03:39,701 INFO L93 Difference]: Finished difference Result 387 states and 387 transitions. [2021-11-09 09:03:39,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-09 09:03:39,701 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 6.8545454545454545) internal successors, (377), 55 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2021-11-09 09:03:39,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:03:39,702 INFO L225 Difference]: With dead ends: 387 [2021-11-09 09:03:39,702 INFO L226 Difference]: Without dead ends: 386 [2021-11-09 09:03:39,703 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-09 09:03:39,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-09 09:03:39,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2021-11-09 09:03:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 384 states have (on average 1.0052083333333333) internal successors, (386), 385 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:39,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 386 transitions. [2021-11-09 09:03:39,708 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 386 transitions. Word has length 377 [2021-11-09 09:03:39,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:03:39,708 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 386 transitions. [2021-11-09 09:03:39,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 6.8545454545454545) internal successors, (377), 55 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:39,709 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 386 transitions. [2021-11-09 09:03:39,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-11-09 09:03:39,710 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:03:39,710 INFO L513 BasicCegarLoop]: trace histogram [55, 54, 54, 54, 54, 54, 54, 1, 1] [2021-11-09 09:03:39,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2021-11-09 09:03:39,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:03:39,911 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:03:39,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:03:39,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1544809313, now seen corresponding path program 54 times [2021-11-09 09:03:39,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:03:39,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119050608] [2021-11-09 09:03:39,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:03:39,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:03:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:03:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 10125 backedges. 0 proven. 10125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:41,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:03:41,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119050608] [2021-11-09 09:03:41,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119050608] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:41,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902272807] [2021-11-09 09:03:41,211 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 09:03:41,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:03:41,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:03:41,212 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:03:41,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2021-11-09 09:03:47,948 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-11-09 09:03:47,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:03:47,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-09 09:03:47,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:03:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 10125 backedges. 0 proven. 10125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:49,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902272807] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:49,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:03:49,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 55 [2021-11-09 09:03:49,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285783961] [2021-11-09 09:03:49,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-09 09:03:49,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:03:49,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-09 09:03:49,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-09 09:03:49,014 INFO L87 Difference]: Start difference. First operand 386 states and 386 transitions. Second operand has 57 states, 56 states have (on average 6.803571428571429) internal successors, (381), 56 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:49,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:03:49,169 INFO L93 Difference]: Finished difference Result 392 states and 392 transitions. [2021-11-09 09:03:49,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-09 09:03:49,169 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 6.803571428571429) internal successors, (381), 56 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 381 [2021-11-09 09:03:49,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:03:49,170 INFO L225 Difference]: With dead ends: 392 [2021-11-09 09:03:49,170 INFO L226 Difference]: Without dead ends: 391 [2021-11-09 09:03:49,171 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-09 09:03:49,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2021-11-09 09:03:49,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 390. [2021-11-09 09:03:49,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 388 states have (on average 1.0051546391752577) internal successors, (390), 389 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:49,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 390 transitions. [2021-11-09 09:03:49,175 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 390 transitions. Word has length 381 [2021-11-09 09:03:49,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:03:49,176 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 390 transitions. [2021-11-09 09:03:49,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 6.803571428571429) internal successors, (381), 56 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:49,176 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 390 transitions. [2021-11-09 09:03:49,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-11-09 09:03:49,177 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:03:49,177 INFO L513 BasicCegarLoop]: trace histogram [55, 55, 55, 55, 54, 54, 54, 1, 1] [2021-11-09 09:03:49,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Ended with exit code 0 [2021-11-09 09:03:49,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-11-09 09:03:49,382 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:03:49,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:03:49,382 INFO L85 PathProgramCache]: Analyzing trace with hash 839710701, now seen corresponding path program 54 times [2021-11-09 09:03:49,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:03:49,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883346291] [2021-11-09 09:03:49,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:03:49,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:03:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:03:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 10287 backedges. 0 proven. 10287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:50,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:03:50,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883346291] [2021-11-09 09:03:50,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883346291] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:50,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146085680] [2021-11-09 09:03:50,757 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 09:03:50,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:03:50,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:03:50,758 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:03:50,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2021-11-09 09:03:57,718 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-11-09 09:03:57,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:03:57,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-09 09:03:57,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:03:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 10287 backedges. 0 proven. 10287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:03:58,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146085680] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:03:58,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:03:58,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 55 [2021-11-09 09:03:58,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030279713] [2021-11-09 09:03:58,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-09 09:03:58,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:03:58,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-09 09:03:58,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-09 09:03:58,822 INFO L87 Difference]: Start difference. First operand 390 states and 390 transitions. Second operand has 57 states, 56 states have (on average 6.857142857142857) internal successors, (384), 56 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:59,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:03:59,037 INFO L93 Difference]: Finished difference Result 394 states and 394 transitions. [2021-11-09 09:03:59,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-09 09:03:59,038 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 6.857142857142857) internal successors, (384), 56 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 384 [2021-11-09 09:03:59,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:03:59,039 INFO L225 Difference]: With dead ends: 394 [2021-11-09 09:03:59,039 INFO L226 Difference]: Without dead ends: 393 [2021-11-09 09:03:59,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-09 09:03:59,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-11-09 09:03:59,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2021-11-09 09:03:59,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 391 states have (on average 1.0051150895140666) internal successors, (393), 392 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 393 transitions. [2021-11-09 09:03:59,048 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 393 transitions. Word has length 384 [2021-11-09 09:03:59,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:03:59,048 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 393 transitions. [2021-11-09 09:03:59,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 6.857142857142857) internal successors, (384), 56 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:03:59,049 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 393 transitions. [2021-11-09 09:03:59,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2021-11-09 09:03:59,051 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:03:59,051 INFO L513 BasicCegarLoop]: trace histogram [56, 55, 55, 55, 55, 55, 55, 1, 1] [2021-11-09 09:03:59,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Forceful destruction successful, exit code 0 [2021-11-09 09:03:59,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-11-09 09:03:59,271 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:03:59,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:03:59,271 INFO L85 PathProgramCache]: Analyzing trace with hash -237192143, now seen corresponding path program 55 times [2021-11-09 09:03:59,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:03:59,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22285513] [2021-11-09 09:03:59,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:03:59,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:03:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:04:00,716 INFO L134 CoverageAnalysis]: Checked inductivity of 10505 backedges. 0 proven. 10505 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:00,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:04:00,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22285513] [2021-11-09 09:04:00,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22285513] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:00,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680213068] [2021-11-09 09:04:00,717 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:04:00,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:04:00,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:04:00,718 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:04:00,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2021-11-09 09:04:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:04:07,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-09 09:04:07,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:04:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 10505 backedges. 0 proven. 10505 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:08,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680213068] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:08,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:04:08,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 56 [2021-11-09 09:04:08,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926203645] [2021-11-09 09:04:08,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-11-09 09:04:08,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:04:08,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-11-09 09:04:08,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-09 09:04:08,826 INFO L87 Difference]: Start difference. First operand 393 states and 393 transitions. Second operand has 58 states, 57 states have (on average 6.807017543859649) internal successors, (388), 57 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:08,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:04:08,978 INFO L93 Difference]: Finished difference Result 399 states and 399 transitions. [2021-11-09 09:04:08,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-09 09:04:08,978 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 6.807017543859649) internal successors, (388), 57 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 388 [2021-11-09 09:04:08,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:04:08,979 INFO L225 Difference]: With dead ends: 399 [2021-11-09 09:04:08,979 INFO L226 Difference]: Without dead ends: 398 [2021-11-09 09:04:08,980 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-09 09:04:08,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-11-09 09:04:08,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 397. [2021-11-09 09:04:08,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 395 states have (on average 1.0050632911392405) internal successors, (397), 396 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:08,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 397 transitions. [2021-11-09 09:04:08,984 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 397 transitions. Word has length 388 [2021-11-09 09:04:08,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:04:08,984 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 397 transitions. [2021-11-09 09:04:08,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 6.807017543859649) internal successors, (388), 57 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:08,985 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 397 transitions. [2021-11-09 09:04:08,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2021-11-09 09:04:08,986 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:04:08,986 INFO L513 BasicCegarLoop]: trace histogram [56, 56, 56, 56, 55, 55, 55, 1, 1] [2021-11-09 09:04:09,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2021-11-09 09:04:09,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2021-11-09 09:04:09,187 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:04:09,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:04:09,187 INFO L85 PathProgramCache]: Analyzing trace with hash -969886435, now seen corresponding path program 55 times [2021-11-09 09:04:09,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:04:09,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2954939] [2021-11-09 09:04:09,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:04:09,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:04:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:04:10,558 INFO L134 CoverageAnalysis]: Checked inductivity of 10670 backedges. 0 proven. 10670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:10,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:04:10,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2954939] [2021-11-09 09:04:10,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2954939] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:10,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121889472] [2021-11-09 09:04:10,559 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:04:10,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:04:10,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:04:10,560 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:04:10,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2021-11-09 09:04:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:04:17,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-09 09:04:17,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:04:18,499 INFO L134 CoverageAnalysis]: Checked inductivity of 10670 backedges. 0 proven. 10670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:18,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121889472] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:18,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:04:18,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 56 [2021-11-09 09:04:18,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394709476] [2021-11-09 09:04:18,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-11-09 09:04:18,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:04:18,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-11-09 09:04:18,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-09 09:04:18,501 INFO L87 Difference]: Start difference. First operand 397 states and 397 transitions. Second operand has 58 states, 57 states have (on average 6.859649122807017) internal successors, (391), 57 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:18,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:04:18,633 INFO L93 Difference]: Finished difference Result 401 states and 401 transitions. [2021-11-09 09:04:18,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-09 09:04:18,633 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 6.859649122807017) internal successors, (391), 57 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2021-11-09 09:04:18,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:04:18,634 INFO L225 Difference]: With dead ends: 401 [2021-11-09 09:04:18,634 INFO L226 Difference]: Without dead ends: 400 [2021-11-09 09:04:18,635 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-09 09:04:18,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-11-09 09:04:18,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2021-11-09 09:04:18,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 398 states have (on average 1.0050251256281406) internal successors, (400), 399 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:18,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 400 transitions. [2021-11-09 09:04:18,639 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 400 transitions. Word has length 391 [2021-11-09 09:04:18,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:04:18,640 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 400 transitions. [2021-11-09 09:04:18,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 6.859649122807017) internal successors, (391), 57 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:18,640 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 400 transitions. [2021-11-09 09:04:18,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-11-09 09:04:18,642 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:04:18,642 INFO L513 BasicCegarLoop]: trace histogram [57, 56, 56, 56, 56, 56, 56, 1, 1] [2021-11-09 09:04:18,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0 [2021-11-09 09:04:18,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2021-11-09 09:04:18,842 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:04:18,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:04:18,843 INFO L85 PathProgramCache]: Analyzing trace with hash 645816673, now seen corresponding path program 56 times [2021-11-09 09:04:18,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:04:18,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925448405] [2021-11-09 09:04:18,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:04:18,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:04:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:04:20,135 INFO L134 CoverageAnalysis]: Checked inductivity of 10892 backedges. 0 proven. 10892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:20,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:04:20,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925448405] [2021-11-09 09:04:20,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925448405] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:20,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094656950] [2021-11-09 09:04:20,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:04:20,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:04:20,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:04:20,136 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:04:20,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2021-11-09 09:04:27,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:04:27,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:04:27,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-09 09:04:27,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:04:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 10892 backedges. 0 proven. 10892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:28,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094656950] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:28,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:04:28,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 57 [2021-11-09 09:04:28,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140643887] [2021-11-09 09:04:28,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-09 09:04:28,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:04:28,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-09 09:04:28,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-09 09:04:28,206 INFO L87 Difference]: Start difference. First operand 400 states and 400 transitions. Second operand has 59 states, 58 states have (on average 6.810344827586207) internal successors, (395), 58 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:28,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:04:28,371 INFO L93 Difference]: Finished difference Result 406 states and 406 transitions. [2021-11-09 09:04:28,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-09 09:04:28,372 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 6.810344827586207) internal successors, (395), 58 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2021-11-09 09:04:28,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:04:28,373 INFO L225 Difference]: With dead ends: 406 [2021-11-09 09:04:28,373 INFO L226 Difference]: Without dead ends: 405 [2021-11-09 09:04:28,373 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-09 09:04:28,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-09 09:04:28,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 404. [2021-11-09 09:04:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 402 states have (on average 1.0049751243781095) internal successors, (404), 403 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:28,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 404 transitions. [2021-11-09 09:04:28,378 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 404 transitions. Word has length 395 [2021-11-09 09:04:28,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:04:28,379 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 404 transitions. [2021-11-09 09:04:28,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 6.810344827586207) internal successors, (395), 58 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:28,379 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 404 transitions. [2021-11-09 09:04:28,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-11-09 09:04:28,380 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:04:28,380 INFO L513 BasicCegarLoop]: trace histogram [57, 57, 57, 57, 56, 56, 56, 1, 1] [2021-11-09 09:04:28,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Forceful destruction successful, exit code 0 [2021-11-09 09:04:28,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116 [2021-11-09 09:04:28,581 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:04:28,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:04:28,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1928936979, now seen corresponding path program 56 times [2021-11-09 09:04:28,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:04:28,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908706292] [2021-11-09 09:04:28,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:04:28,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:04:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:04:30,058 INFO L134 CoverageAnalysis]: Checked inductivity of 11060 backedges. 0 proven. 11060 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:30,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:04:30,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908706292] [2021-11-09 09:04:30,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908706292] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:30,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161153093] [2021-11-09 09:04:30,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:04:30,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:04:30,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:04:30,059 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:04:30,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2021-11-09 09:04:37,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:04:37,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:04:37,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-09 09:04:37,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:04:38,257 INFO L134 CoverageAnalysis]: Checked inductivity of 11060 backedges. 0 proven. 11060 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:38,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161153093] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:38,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:04:38,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 57 [2021-11-09 09:04:38,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570720890] [2021-11-09 09:04:38,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-09 09:04:38,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:04:38,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-09 09:04:38,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-09 09:04:38,259 INFO L87 Difference]: Start difference. First operand 404 states and 404 transitions. Second operand has 59 states, 58 states have (on average 6.862068965517241) internal successors, (398), 58 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:38,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:04:38,423 INFO L93 Difference]: Finished difference Result 408 states and 408 transitions. [2021-11-09 09:04:38,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-09 09:04:38,424 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 6.862068965517241) internal successors, (398), 58 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 398 [2021-11-09 09:04:38,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:04:38,424 INFO L225 Difference]: With dead ends: 408 [2021-11-09 09:04:38,425 INFO L226 Difference]: Without dead ends: 407 [2021-11-09 09:04:38,425 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-09 09:04:38,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-11-09 09:04:38,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2021-11-09 09:04:38,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 405 states have (on average 1.0049382716049382) internal successors, (407), 406 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:38,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 407 transitions. [2021-11-09 09:04:38,430 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 407 transitions. Word has length 398 [2021-11-09 09:04:38,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:04:38,431 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 407 transitions. [2021-11-09 09:04:38,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 6.862068965517241) internal successors, (398), 58 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:38,431 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 407 transitions. [2021-11-09 09:04:38,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-11-09 09:04:38,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:04:38,433 INFO L513 BasicCegarLoop]: trace histogram [58, 57, 57, 57, 57, 57, 57, 1, 1] [2021-11-09 09:04:38,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2021-11-09 09:04:38,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2021-11-09 09:04:38,633 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:04:38,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:04:38,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1189185073, now seen corresponding path program 57 times [2021-11-09 09:04:38,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:04:38,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112133704] [2021-11-09 09:04:38,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:04:38,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:04:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:04:40,040 INFO L134 CoverageAnalysis]: Checked inductivity of 11286 backedges. 0 proven. 11286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:40,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:04:40,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112133704] [2021-11-09 09:04:40,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112133704] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:40,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355574956] [2021-11-09 09:04:40,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:04:40,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:04:40,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:04:40,042 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:04:40,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2021-11-09 09:04:47,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-11-09 09:04:47,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:04:47,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-09 09:04:47,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:04:48,673 INFO L134 CoverageAnalysis]: Checked inductivity of 11286 backedges. 0 proven. 11286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:48,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355574956] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:48,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:04:48,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 58 [2021-11-09 09:04:48,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249311474] [2021-11-09 09:04:48,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-11-09 09:04:48,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:04:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-11-09 09:04:48,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-09 09:04:48,675 INFO L87 Difference]: Start difference. First operand 407 states and 407 transitions. Second operand has 60 states, 59 states have (on average 6.813559322033898) internal successors, (402), 59 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:48,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:04:48,848 INFO L93 Difference]: Finished difference Result 413 states and 413 transitions. [2021-11-09 09:04:48,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-09 09:04:48,849 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 6.813559322033898) internal successors, (402), 59 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 402 [2021-11-09 09:04:48,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:04:48,850 INFO L225 Difference]: With dead ends: 413 [2021-11-09 09:04:48,850 INFO L226 Difference]: Without dead ends: 412 [2021-11-09 09:04:48,850 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-09 09:04:48,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-11-09 09:04:48,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 411. [2021-11-09 09:04:48,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 409 states have (on average 1.0048899755501222) internal successors, (411), 410 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 411 transitions. [2021-11-09 09:04:48,856 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 411 transitions. Word has length 402 [2021-11-09 09:04:48,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:04:48,856 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 411 transitions. [2021-11-09 09:04:48,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 6.813559322033898) internal successors, (402), 59 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 411 transitions. [2021-11-09 09:04:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2021-11-09 09:04:48,858 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:04:48,858 INFO L513 BasicCegarLoop]: trace histogram [58, 58, 58, 58, 57, 57, 57, 1, 1] [2021-11-09 09:04:48,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Ended with exit code 0 [2021-11-09 09:04:49,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2021-11-09 09:04:49,059 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:04:49,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:04:49,059 INFO L85 PathProgramCache]: Analyzing trace with hash 2122296093, now seen corresponding path program 57 times [2021-11-09 09:04:49,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:04:49,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547974406] [2021-11-09 09:04:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:04:49,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:04:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:04:50,627 INFO L134 CoverageAnalysis]: Checked inductivity of 11457 backedges. 0 proven. 11457 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:50,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:04:50,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547974406] [2021-11-09 09:04:50,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547974406] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:50,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982908606] [2021-11-09 09:04:50,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:04:50,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:04:50,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:04:50,628 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:04:50,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2021-11-09 09:04:58,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-11-09 09:04:58,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:04:58,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-09 09:04:58,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:04:59,372 INFO L134 CoverageAnalysis]: Checked inductivity of 11457 backedges. 0 proven. 11457 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:59,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982908606] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:59,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:04:59,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 58 [2021-11-09 09:04:59,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375153083] [2021-11-09 09:04:59,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-11-09 09:04:59,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:04:59,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-11-09 09:04:59,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-09 09:04:59,375 INFO L87 Difference]: Start difference. First operand 411 states and 411 transitions. Second operand has 60 states, 59 states have (on average 6.864406779661017) internal successors, (405), 59 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:59,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:04:59,546 INFO L93 Difference]: Finished difference Result 415 states and 415 transitions. [2021-11-09 09:04:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-09 09:04:59,546 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 6.864406779661017) internal successors, (405), 59 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 405 [2021-11-09 09:04:59,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:04:59,547 INFO L225 Difference]: With dead ends: 415 [2021-11-09 09:04:59,547 INFO L226 Difference]: Without dead ends: 414 [2021-11-09 09:04:59,548 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-09 09:04:59,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-11-09 09:04:59,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2021-11-09 09:04:59,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 412 states have (on average 1.0048543689320388) internal successors, (414), 413 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:59,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 414 transitions. [2021-11-09 09:04:59,553 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 414 transitions. Word has length 405 [2021-11-09 09:04:59,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:04:59,554 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 414 transitions. [2021-11-09 09:04:59,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 6.864406779661017) internal successors, (405), 59 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:59,554 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 414 transitions. [2021-11-09 09:04:59,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-09 09:04:59,555 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:04:59,556 INFO L513 BasicCegarLoop]: trace histogram [59, 58, 58, 58, 58, 58, 58, 1, 1] [2021-11-09 09:04:59,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Forceful destruction successful, exit code 0 [2021-11-09 09:04:59,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:04:59,756 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:04:59,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:04:59,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1839048863, now seen corresponding path program 58 times [2021-11-09 09:04:59,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:04:59,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296307811] [2021-11-09 09:04:59,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:04:59,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:04:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:05:01,201 INFO L134 CoverageAnalysis]: Checked inductivity of 11687 backedges. 0 proven. 11687 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:01,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:05:01,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296307811] [2021-11-09 09:05:01,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296307811] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:01,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828716759] [2021-11-09 09:05:01,202 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:05:01,202 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:05:01,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:05:01,203 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:05:01,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2021-11-09 09:05:09,064 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:05:09,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:05:09,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-09 09:05:09,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:05:10,402 INFO L134 CoverageAnalysis]: Checked inductivity of 11687 backedges. 0 proven. 11687 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:10,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828716759] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:10,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:05:10,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 59 [2021-11-09 09:05:10,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104608299] [2021-11-09 09:05:10,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-11-09 09:05:10,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:05:10,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-11-09 09:05:10,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-09 09:05:10,404 INFO L87 Difference]: Start difference. First operand 414 states and 414 transitions. Second operand has 61 states, 60 states have (on average 6.816666666666666) internal successors, (409), 60 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:10,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:05:10,577 INFO L93 Difference]: Finished difference Result 420 states and 420 transitions. [2021-11-09 09:05:10,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-09 09:05:10,577 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 6.816666666666666) internal successors, (409), 60 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 409 [2021-11-09 09:05:10,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:05:10,578 INFO L225 Difference]: With dead ends: 420 [2021-11-09 09:05:10,578 INFO L226 Difference]: Without dead ends: 419 [2021-11-09 09:05:10,578 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-09 09:05:10,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2021-11-09 09:05:10,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 418. [2021-11-09 09:05:10,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 416 states have (on average 1.0048076923076923) internal successors, (418), 417 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:10,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 418 transitions. [2021-11-09 09:05:10,584 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 418 transitions. Word has length 409 [2021-11-09 09:05:10,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:05:10,585 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 418 transitions. [2021-11-09 09:05:10,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 6.816666666666666) internal successors, (409), 60 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:10,585 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 418 transitions. [2021-11-09 09:05:10,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-09 09:05:10,588 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:05:10,588 INFO L513 BasicCegarLoop]: trace histogram [59, 59, 59, 59, 58, 58, 58, 1, 1] [2021-11-09 09:05:10,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2021-11-09 09:05:10,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:05:10,802 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:05:10,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:05:10,802 INFO L85 PathProgramCache]: Analyzing trace with hash -501806099, now seen corresponding path program 58 times [2021-11-09 09:05:10,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:05:10,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983174143] [2021-11-09 09:05:10,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:05:10,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:05:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:05:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 11861 backedges. 0 proven. 11861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:12,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:05:12,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983174143] [2021-11-09 09:05:12,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983174143] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:12,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139261755] [2021-11-09 09:05:12,293 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:05:12,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:05:12,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:05:12,294 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:05:12,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2021-11-09 09:05:19,880 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:05:19,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:05:19,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-09 09:05:19,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:05:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 11861 backedges. 0 proven. 11861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:21,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139261755] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:21,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:05:21,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 59 [2021-11-09 09:05:21,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79111271] [2021-11-09 09:05:21,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-11-09 09:05:21,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:05:21,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-11-09 09:05:21,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-09 09:05:21,002 INFO L87 Difference]: Start difference. First operand 418 states and 418 transitions. Second operand has 61 states, 60 states have (on average 6.866666666666666) internal successors, (412), 60 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:21,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:05:21,167 INFO L93 Difference]: Finished difference Result 422 states and 422 transitions. [2021-11-09 09:05:21,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-09 09:05:21,167 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 6.866666666666666) internal successors, (412), 60 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 412 [2021-11-09 09:05:21,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:05:21,168 INFO L225 Difference]: With dead ends: 422 [2021-11-09 09:05:21,168 INFO L226 Difference]: Without dead ends: 421 [2021-11-09 09:05:21,169 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-09 09:05:21,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-11-09 09:05:21,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-11-09 09:05:21,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 419 states have (on average 1.0047732696897376) internal successors, (421), 420 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:21,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 421 transitions. [2021-11-09 09:05:21,174 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 421 transitions. Word has length 412 [2021-11-09 09:05:21,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:05:21,174 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 421 transitions. [2021-11-09 09:05:21,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 6.866666666666666) internal successors, (412), 60 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:21,174 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 421 transitions. [2021-11-09 09:05:21,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2021-11-09 09:05:21,176 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:05:21,176 INFO L513 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 1, 1] [2021-11-09 09:05:21,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Ended with exit code 0 [2021-11-09 09:05:21,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable121 [2021-11-09 09:05:21,376 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:05:21,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:05:21,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1497575375, now seen corresponding path program 59 times [2021-11-09 09:05:21,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:05:21,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499453175] [2021-11-09 09:05:21,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:05:21,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:05:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:05:22,943 INFO L134 CoverageAnalysis]: Checked inductivity of 12095 backedges. 0 proven. 12095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:22,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:05:22,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499453175] [2021-11-09 09:05:22,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499453175] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:22,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976726730] [2021-11-09 09:05:22,944 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 09:05:22,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:05:22,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:05:22,944 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:05:22,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2021-11-09 09:05:30,957 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-11-09 09:05:30,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:05:30,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-09 09:05:30,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:05:32,030 INFO L134 CoverageAnalysis]: Checked inductivity of 12095 backedges. 0 proven. 12095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:32,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976726730] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:32,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:05:32,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 60 [2021-11-09 09:05:32,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109012425] [2021-11-09 09:05:32,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-11-09 09:05:32,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:05:32,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-11-09 09:05:32,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-09 09:05:32,032 INFO L87 Difference]: Start difference. First operand 421 states and 421 transitions. Second operand has 62 states, 61 states have (on average 6.819672131147541) internal successors, (416), 61 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:32,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:05:32,191 INFO L93 Difference]: Finished difference Result 427 states and 427 transitions. [2021-11-09 09:05:32,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-09 09:05:32,191 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 6.819672131147541) internal successors, (416), 61 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 416 [2021-11-09 09:05:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:05:32,192 INFO L225 Difference]: With dead ends: 427 [2021-11-09 09:05:32,193 INFO L226 Difference]: Without dead ends: 426 [2021-11-09 09:05:32,193 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-09 09:05:32,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2021-11-09 09:05:32,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 425. [2021-11-09 09:05:32,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 423 states have (on average 1.0047281323877069) internal successors, (425), 424 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:32,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 425 transitions. [2021-11-09 09:05:32,199 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 425 transitions. Word has length 416 [2021-11-09 09:05:32,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:05:32,199 INFO L470 AbstractCegarLoop]: Abstraction has 425 states and 425 transitions. [2021-11-09 09:05:32,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 6.819672131147541) internal successors, (416), 61 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:32,199 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 425 transitions. [2021-11-09 09:05:32,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2021-11-09 09:05:32,201 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:05:32,201 INFO L513 BasicCegarLoop]: trace histogram [60, 60, 60, 60, 59, 59, 59, 1, 1] [2021-11-09 09:05:32,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Forceful destruction successful, exit code 0 [2021-11-09 09:05:32,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2021-11-09 09:05:32,402 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:05:32,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:05:32,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1852317981, now seen corresponding path program 59 times [2021-11-09 09:05:32,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:05:32,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116326860] [2021-11-09 09:05:32,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:05:32,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:05:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:05:34,164 INFO L134 CoverageAnalysis]: Checked inductivity of 12272 backedges. 0 proven. 12272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:34,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:05:34,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116326860] [2021-11-09 09:05:34,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116326860] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:34,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54351971] [2021-11-09 09:05:34,165 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 09:05:34,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:05:34,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:05:34,165 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:05:34,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2021-11-09 09:05:42,206 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-11-09 09:05:42,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:05:42,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-09 09:05:42,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:05:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12272 backedges. 0 proven. 12272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:43,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54351971] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:43,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:05:43,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 60 [2021-11-09 09:05:43,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217663075] [2021-11-09 09:05:43,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-11-09 09:05:43,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:05:43,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-11-09 09:05:43,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-09 09:05:43,416 INFO L87 Difference]: Start difference. First operand 425 states and 425 transitions. Second operand has 62 states, 61 states have (on average 6.868852459016393) internal successors, (419), 61 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:43,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:05:43,623 INFO L93 Difference]: Finished difference Result 429 states and 429 transitions. [2021-11-09 09:05:43,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-09 09:05:43,624 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 6.868852459016393) internal successors, (419), 61 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 419 [2021-11-09 09:05:43,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:05:43,625 INFO L225 Difference]: With dead ends: 429 [2021-11-09 09:05:43,625 INFO L226 Difference]: Without dead ends: 428 [2021-11-09 09:05:43,625 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-09 09:05:43,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-11-09 09:05:43,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2021-11-09 09:05:43,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 426 states have (on average 1.0046948356807512) internal successors, (428), 427 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:43,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 428 transitions. [2021-11-09 09:05:43,631 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 428 transitions. Word has length 419 [2021-11-09 09:05:43,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:05:43,631 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 428 transitions. [2021-11-09 09:05:43,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 6.868852459016393) internal successors, (419), 61 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:43,631 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 428 transitions. [2021-11-09 09:05:43,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2021-11-09 09:05:43,633 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:05:43,633 INFO L513 BasicCegarLoop]: trace histogram [61, 60, 60, 60, 60, 60, 60, 1, 1] [2021-11-09 09:05:43,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Forceful destruction successful, exit code 0 [2021-11-09 09:05:43,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2021-11-09 09:05:43,834 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:05:43,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:05:43,834 INFO L85 PathProgramCache]: Analyzing trace with hash -853553823, now seen corresponding path program 60 times [2021-11-09 09:05:43,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:05:43,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991392495] [2021-11-09 09:05:43,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:05:43,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:05:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:05:45,357 INFO L134 CoverageAnalysis]: Checked inductivity of 12510 backedges. 0 proven. 12510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:45,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:05:45,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991392495] [2021-11-09 09:05:45,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991392495] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:45,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096746407] [2021-11-09 09:05:45,358 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 09:05:45,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:05:45,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:05:45,359 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:05:45,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Waiting until timeout for monitored process [2021-11-09 09:05:53,640 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-11-09 09:05:53,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:05:53,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-09 09:05:53,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:05:54,724 INFO L134 CoverageAnalysis]: Checked inductivity of 12510 backedges. 0 proven. 12510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:54,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096746407] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:54,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:05:54,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 61 [2021-11-09 09:05:54,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731287365] [2021-11-09 09:05:54,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-09 09:05:54,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:05:54,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-09 09:05:54,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-09 09:05:54,726 INFO L87 Difference]: Start difference. First operand 428 states and 428 transitions. Second operand has 63 states, 62 states have (on average 6.82258064516129) internal successors, (423), 62 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:54,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:05:54,904 INFO L93 Difference]: Finished difference Result 434 states and 434 transitions. [2021-11-09 09:05:54,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-09 09:05:54,904 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 6.82258064516129) internal successors, (423), 62 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 423 [2021-11-09 09:05:54,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:05:54,905 INFO L225 Difference]: With dead ends: 434 [2021-11-09 09:05:54,905 INFO L226 Difference]: Without dead ends: 433 [2021-11-09 09:05:54,905 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-09 09:05:54,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2021-11-09 09:05:54,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 432. [2021-11-09 09:05:54,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 430 states have (on average 1.0046511627906978) internal successors, (432), 431 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:54,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 432 transitions. [2021-11-09 09:05:54,910 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 432 transitions. Word has length 423 [2021-11-09 09:05:54,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:05:54,911 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 432 transitions. [2021-11-09 09:05:54,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 6.82258064516129) internal successors, (423), 62 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:05:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 432 transitions. [2021-11-09 09:05:54,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-11-09 09:05:54,913 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:05:54,913 INFO L513 BasicCegarLoop]: trace histogram [61, 61, 61, 61, 60, 60, 60, 1, 1] [2021-11-09 09:05:54,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Ended with exit code 0 [2021-11-09 09:05:55,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2021-11-09 09:05:55,113 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:05:55,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:05:55,114 INFO L85 PathProgramCache]: Analyzing trace with hash -2015504915, now seen corresponding path program 60 times [2021-11-09 09:05:55,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:05:55,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817341840] [2021-11-09 09:05:55,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:05:55,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:05:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:05:56,824 INFO L134 CoverageAnalysis]: Checked inductivity of 12690 backedges. 0 proven. 12690 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:56,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:05:56,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817341840] [2021-11-09 09:05:56,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817341840] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:56,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345676697] [2021-11-09 09:05:56,824 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 09:05:56,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:05:56,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:05:56,825 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:05:56,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Waiting until timeout for monitored process [2021-11-09 09:06:05,673 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-11-09 09:06:05,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:06:05,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-09 09:06:05,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:06:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 12690 backedges. 0 proven. 12690 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:06:06,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345676697] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:06,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:06:06,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 61 [2021-11-09 09:06:06,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777023728] [2021-11-09 09:06:06,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-09 09:06:06,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:06:06,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-09 09:06:06,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-09 09:06:06,834 INFO L87 Difference]: Start difference. First operand 432 states and 432 transitions. Second operand has 63 states, 62 states have (on average 6.870967741935484) internal successors, (426), 62 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:07,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:06:07,026 INFO L93 Difference]: Finished difference Result 436 states and 436 transitions. [2021-11-09 09:06:07,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-09 09:06:07,026 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 6.870967741935484) internal successors, (426), 62 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 426 [2021-11-09 09:06:07,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:06:07,027 INFO L225 Difference]: With dead ends: 436 [2021-11-09 09:06:07,027 INFO L226 Difference]: Without dead ends: 435 [2021-11-09 09:06:07,028 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-09 09:06:07,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-11-09 09:06:07,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2021-11-09 09:06:07,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 433 states have (on average 1.0046189376443417) internal successors, (435), 434 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:07,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 435 transitions. [2021-11-09 09:06:07,033 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 435 transitions. Word has length 426 [2021-11-09 09:06:07,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:06:07,034 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 435 transitions. [2021-11-09 09:06:07,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 6.870967741935484) internal successors, (426), 62 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:07,034 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 435 transitions. [2021-11-09 09:06:07,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-11-09 09:06:07,035 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:06:07,036 INFO L513 BasicCegarLoop]: trace histogram [62, 61, 61, 61, 61, 61, 61, 1, 1] [2021-11-09 09:06:07,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Ended with exit code 0 [2021-11-09 09:06:07,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2021-11-09 09:06:07,236 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:06:07,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:06:07,237 INFO L85 PathProgramCache]: Analyzing trace with hash 403610161, now seen corresponding path program 61 times [2021-11-09 09:06:07,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:06:07,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139236673] [2021-11-09 09:06:07,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:06:07,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:06:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:06:09,066 INFO L134 CoverageAnalysis]: Checked inductivity of 12932 backedges. 0 proven. 12932 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:06:09,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:06:09,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139236673] [2021-11-09 09:06:09,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139236673] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:09,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024896684] [2021-11-09 09:06:09,066 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:06:09,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:09,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:06:09,067 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:06:09,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process [2021-11-09 09:06:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:06:17,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-09 09:06:17,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:06:18,757 INFO L134 CoverageAnalysis]: Checked inductivity of 12932 backedges. 0 proven. 12932 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:06:18,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024896684] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:18,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:06:18,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 62 [2021-11-09 09:06:18,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241774737] [2021-11-09 09:06:18,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-09 09:06:18,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:06:18,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-09 09:06:18,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-09 09:06:18,759 INFO L87 Difference]: Start difference. First operand 435 states and 435 transitions. Second operand has 64 states, 63 states have (on average 6.825396825396825) internal successors, (430), 63 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:18,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:06:18,975 INFO L93 Difference]: Finished difference Result 441 states and 441 transitions. [2021-11-09 09:06:18,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-09 09:06:18,976 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 6.825396825396825) internal successors, (430), 63 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 430 [2021-11-09 09:06:18,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:06:18,977 INFO L225 Difference]: With dead ends: 441 [2021-11-09 09:06:18,977 INFO L226 Difference]: Without dead ends: 440 [2021-11-09 09:06:18,978 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-09 09:06:18,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-11-09 09:06:18,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2021-11-09 09:06:18,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 437 states have (on average 1.0045766590389016) internal successors, (439), 438 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:18,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 439 transitions. [2021-11-09 09:06:18,987 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 439 transitions. Word has length 430 [2021-11-09 09:06:18,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:06:18,988 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 439 transitions. [2021-11-09 09:06:18,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 6.825396825396825) internal successors, (430), 63 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:18,989 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 439 transitions. [2021-11-09 09:06:18,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-11-09 09:06:18,991 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:06:18,992 INFO L513 BasicCegarLoop]: trace histogram [62, 62, 62, 62, 61, 61, 61, 1, 1] [2021-11-09 09:06:19,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Forceful destruction successful, exit code 0 [2021-11-09 09:06:19,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126,122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:19,210 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:06:19,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:06:19,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1958078691, now seen corresponding path program 61 times [2021-11-09 09:06:19,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:06:19,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005873418] [2021-11-09 09:06:19,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:06:19,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:06:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:06:20,920 INFO L134 CoverageAnalysis]: Checked inductivity of 13115 backedges. 0 proven. 13115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:06:20,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:06:20,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005873418] [2021-11-09 09:06:20,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005873418] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:20,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545975787] [2021-11-09 09:06:20,921 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:06:20,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:20,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:06:20,922 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:06:20,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Waiting until timeout for monitored process [2021-11-09 09:06:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:06:30,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-09 09:06:30,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:06:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 13115 backedges. 0 proven. 13115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:06:31,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545975787] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:31,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:06:31,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 62 [2021-11-09 09:06:31,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237418331] [2021-11-09 09:06:31,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-09 09:06:31,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:06:31,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-09 09:06:31,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-09 09:06:31,639 INFO L87 Difference]: Start difference. First operand 439 states and 439 transitions. Second operand has 64 states, 63 states have (on average 6.873015873015873) internal successors, (433), 63 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:31,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:06:31,852 INFO L93 Difference]: Finished difference Result 443 states and 443 transitions. [2021-11-09 09:06:31,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-09 09:06:31,853 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 6.873015873015873) internal successors, (433), 63 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 433 [2021-11-09 09:06:31,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:06:31,854 INFO L225 Difference]: With dead ends: 443 [2021-11-09 09:06:31,854 INFO L226 Difference]: Without dead ends: 442 [2021-11-09 09:06:31,855 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-09 09:06:31,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-09 09:06:31,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-11-09 09:06:31,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 440 states have (on average 1.0045454545454546) internal successors, (442), 441 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:31,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 442 transitions. [2021-11-09 09:06:31,863 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 442 transitions. Word has length 433 [2021-11-09 09:06:31,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:06:31,864 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 442 transitions. [2021-11-09 09:06:31,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 6.873015873015873) internal successors, (433), 63 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:31,864 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 442 transitions. [2021-11-09 09:06:31,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2021-11-09 09:06:31,867 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:06:31,867 INFO L513 BasicCegarLoop]: trace histogram [63, 62, 62, 62, 62, 62, 62, 1, 1] [2021-11-09 09:06:31,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Ended with exit code 0 [2021-11-09 09:06:32,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable127 [2021-11-09 09:06:32,070 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:06:32,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:06:32,070 INFO L85 PathProgramCache]: Analyzing trace with hash 471253857, now seen corresponding path program 62 times [2021-11-09 09:06:32,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:06:32,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217388292] [2021-11-09 09:06:32,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:06:32,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:06:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:06:34,220 INFO L134 CoverageAnalysis]: Checked inductivity of 13361 backedges. 0 proven. 13361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:06:34,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:06:34,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217388292] [2021-11-09 09:06:34,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217388292] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:34,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650235063] [2021-11-09 09:06:34,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:06:34,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:34,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:06:34,222 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:06:34,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Waiting until timeout for monitored process [2021-11-09 09:06:44,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:06:44,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:06:44,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-09 09:06:44,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:06:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 13361 backedges. 0 proven. 13361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:06:45,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650235063] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:45,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:06:45,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 63 [2021-11-09 09:06:45,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566818635] [2021-11-09 09:06:45,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-09 09:06:45,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:06:45,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-09 09:06:45,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-09 09:06:45,541 INFO L87 Difference]: Start difference. First operand 442 states and 442 transitions. Second operand has 65 states, 64 states have (on average 6.828125) internal successors, (437), 64 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:45,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:06:45,739 INFO L93 Difference]: Finished difference Result 448 states and 448 transitions. [2021-11-09 09:06:45,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-09 09:06:45,739 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 6.828125) internal successors, (437), 64 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 437 [2021-11-09 09:06:45,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:06:45,740 INFO L225 Difference]: With dead ends: 448 [2021-11-09 09:06:45,740 INFO L226 Difference]: Without dead ends: 447 [2021-11-09 09:06:45,741 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-09 09:06:45,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-11-09 09:06:45,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2021-11-09 09:06:45,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 444 states have (on average 1.0045045045045045) internal successors, (446), 445 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:45,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 446 transitions. [2021-11-09 09:06:45,747 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 446 transitions. Word has length 437 [2021-11-09 09:06:45,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:06:45,748 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 446 transitions. [2021-11-09 09:06:45,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 6.828125) internal successors, (437), 64 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:45,748 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 446 transitions. [2021-11-09 09:06:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-11-09 09:06:45,750 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:06:45,750 INFO L513 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 62, 62, 62, 1, 1] [2021-11-09 09:06:45,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Ended with exit code 0 [2021-11-09 09:06:45,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128,124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:45,951 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:06:45,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:06:45,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1124392979, now seen corresponding path program 62 times [2021-11-09 09:06:45,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:06:45,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78531464] [2021-11-09 09:06:45,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:06:45,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:06:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:06:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 13547 backedges. 0 proven. 13547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:06:48,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:06:48,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78531464] [2021-11-09 09:06:48,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78531464] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:48,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936545787] [2021-11-09 09:06:48,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:06:48,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:48,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:06:48,091 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:06:48,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Waiting until timeout for monitored process [2021-11-09 09:06:58,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:06:58,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:06:58,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-09 09:06:58,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:06:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 13547 backedges. 0 proven. 13547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:06:59,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936545787] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:59,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:06:59,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 63 [2021-11-09 09:06:59,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749906097] [2021-11-09 09:06:59,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-09 09:06:59,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:06:59,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-09 09:06:59,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-09 09:06:59,623 INFO L87 Difference]: Start difference. First operand 446 states and 446 transitions. Second operand has 65 states, 64 states have (on average 6.875) internal successors, (440), 64 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:59,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:06:59,822 INFO L93 Difference]: Finished difference Result 450 states and 450 transitions. [2021-11-09 09:06:59,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-09 09:06:59,823 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 6.875) internal successors, (440), 64 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 440 [2021-11-09 09:06:59,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:06:59,824 INFO L225 Difference]: With dead ends: 450 [2021-11-09 09:06:59,824 INFO L226 Difference]: Without dead ends: 449 [2021-11-09 09:06:59,824 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-09 09:06:59,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-11-09 09:06:59,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2021-11-09 09:06:59,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 447 states have (on average 1.0044742729306488) internal successors, (449), 448 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 449 transitions. [2021-11-09 09:06:59,830 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 449 transitions. Word has length 440 [2021-11-09 09:06:59,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:06:59,831 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 449 transitions. [2021-11-09 09:06:59,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 6.875) internal successors, (440), 64 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:59,832 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 449 transitions. [2021-11-09 09:06:59,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2021-11-09 09:06:59,834 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:06:59,835 INFO L513 BasicCegarLoop]: trace histogram [64, 63, 63, 63, 63, 63, 63, 1, 1] [2021-11-09 09:06:59,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Ended with exit code 0 [2021-11-09 09:07:00,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129 [2021-11-09 09:07:00,050 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:07:00,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:07:00,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1988697039, now seen corresponding path program 63 times [2021-11-09 09:07:00,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:07:00,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671147151] [2021-11-09 09:07:00,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:07:00,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:07:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:07:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 13797 backedges. 0 proven. 13797 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:07:02,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:07:02,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671147151] [2021-11-09 09:07:02,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671147151] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:07:02,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707315603] [2021-11-09 09:07:02,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:07:02,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:07:02,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:07:02,059 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:07:02,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Waiting until timeout for monitored process [2021-11-09 09:07:12,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-11-09 09:07:12,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:07:12,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-09 09:07:12,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:07:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 13797 backedges. 0 proven. 13797 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:07:13,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707315603] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:07:13,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:07:13,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 64 [2021-11-09 09:07:13,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012455592] [2021-11-09 09:07:13,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-09 09:07:13,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:07:13,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-09 09:07:13,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-09 09:07:13,917 INFO L87 Difference]: Start difference. First operand 449 states and 449 transitions. Second operand has 66 states, 65 states have (on average 6.8307692307692305) internal successors, (444), 65 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:07:14,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:07:14,168 INFO L93 Difference]: Finished difference Result 455 states and 455 transitions. [2021-11-09 09:07:14,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-09 09:07:14,168 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 6.8307692307692305) internal successors, (444), 65 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 444 [2021-11-09 09:07:14,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:07:14,169 INFO L225 Difference]: With dead ends: 455 [2021-11-09 09:07:14,169 INFO L226 Difference]: Without dead ends: 454 [2021-11-09 09:07:14,170 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-09 09:07:14,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-11-09 09:07:14,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 453. [2021-11-09 09:07:14,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 451 states have (on average 1.0044345898004434) internal successors, (453), 452 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:07:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 453 transitions. [2021-11-09 09:07:14,176 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 453 transitions. Word has length 444 [2021-11-09 09:07:14,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:07:14,176 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 453 transitions. [2021-11-09 09:07:14,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 6.8307692307692305) internal successors, (444), 65 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:07:14,176 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 453 transitions. [2021-11-09 09:07:14,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-09 09:07:14,178 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:07:14,178 INFO L513 BasicCegarLoop]: trace histogram [64, 64, 64, 64, 63, 63, 63, 1, 1] [2021-11-09 09:07:14,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Forceful destruction successful, exit code 0 [2021-11-09 09:07:14,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:07:14,382 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:07:14,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:07:14,382 INFO L85 PathProgramCache]: Analyzing trace with hash -494564067, now seen corresponding path program 63 times [2021-11-09 09:07:14,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:07:14,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790086631] [2021-11-09 09:07:14,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:07:14,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:07:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:07:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 0 proven. 13986 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:07:16,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:07:16,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790086631] [2021-11-09 09:07:16,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790086631] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:07:16,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529851481] [2021-11-09 09:07:16,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:07:16,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:07:16,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:07:16,541 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:07:16,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Waiting until timeout for monitored process [2021-11-09 09:07:25,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-11-09 09:07:25,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:07:25,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-09 09:07:25,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:07:27,238 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 0 proven. 13986 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:07:27,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529851481] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:07:27,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:07:27,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 64 [2021-11-09 09:07:27,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994773264] [2021-11-09 09:07:27,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-09 09:07:27,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:07:27,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-09 09:07:27,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-09 09:07:27,240 INFO L87 Difference]: Start difference. First operand 453 states and 453 transitions. Second operand has 66 states, 65 states have (on average 6.876923076923077) internal successors, (447), 65 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:07:27,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:07:27,420 INFO L93 Difference]: Finished difference Result 457 states and 457 transitions. [2021-11-09 09:07:27,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-09 09:07:27,421 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 6.876923076923077) internal successors, (447), 65 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 447 [2021-11-09 09:07:27,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:07:27,422 INFO L225 Difference]: With dead ends: 457 [2021-11-09 09:07:27,422 INFO L226 Difference]: Without dead ends: 456 [2021-11-09 09:07:27,422 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-09 09:07:27,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-11-09 09:07:27,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2021-11-09 09:07:27,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 454 states have (on average 1.0044052863436124) internal successors, (456), 455 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:07:27,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 456 transitions. [2021-11-09 09:07:27,428 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 456 transitions. Word has length 447 [2021-11-09 09:07:27,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:07:27,429 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 456 transitions. [2021-11-09 09:07:27,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 6.876923076923077) internal successors, (447), 65 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:07:27,429 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 456 transitions. [2021-11-09 09:07:27,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2021-11-09 09:07:27,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:07:27,432 INFO L513 BasicCegarLoop]: trace histogram [65, 64, 64, 64, 64, 64, 64, 1, 1] [2021-11-09 09:07:27,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Forceful destruction successful, exit code 0 [2021-11-09 09:07:27,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131,127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:07:27,649 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-09 09:07:27,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:07:27,649 INFO L85 PathProgramCache]: Analyzing trace with hash -593020575, now seen corresponding path program 64 times [2021-11-09 09:07:27,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:07:27,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907171664] [2021-11-09 09:07:27,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:07:27,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:07:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:07:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 14240 backedges. 0 proven. 14240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:07:29,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:07:29,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907171664] [2021-11-09 09:07:29,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907171664] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:07:29,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621744310] [2021-11-09 09:07:29,841 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:07:29,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:07:29,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:07:29,843 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:07:29,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3227fad1-bb1d-4d6c-851d-cfc21750f987/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process [2021-11-09 09:07:39,224 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:07:39,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:07:39,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 66 conjunts are in the unsatisfiable core [2021-11-09 09:07:39,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:07:40,490 INFO L134 CoverageAnalysis]: Checked inductivity of 14240 backedges. 0 proven. 14240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:07:40,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621744310] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:07:40,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:07:40,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 65 [2021-11-09 09:07:40,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225315088] [2021-11-09 09:07:40,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-11-09 09:07:40,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:07:40,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-11-09 09:07:40,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2021-11-09 09:07:40,492 INFO L87 Difference]: Start difference. First operand 456 states and 456 transitions. Second operand has 67 states, 66 states have (on average 6.833333333333333) internal successors, (451), 66 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)