./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc --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 f79e4118373e847e0fb27fcdde0c282d507ddb96f3173b4556e1de9cae44280f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:51:44,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:51:44,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:51:44,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:51:44,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:51:44,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:51:44,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:51:44,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:51:44,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:51:44,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:51:44,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:51:44,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:51:44,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:51:44,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:51:44,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:51:44,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:51:44,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:51:44,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:51:44,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:51:44,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:51:44,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:51:44,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:51:44,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:51:44,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:51:44,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:51:44,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:51:44,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:51:44,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:51:44,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:51:44,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:51:44,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:51:44,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:51:44,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:51:44,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:51:44,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:51:44,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:51:44,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:51:44,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:51:44,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:51:44,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:51:44,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:51:44,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-02 20:51:44,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:51:44,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:51:44,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:51:44,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:51:44,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:51:44,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:51:44,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:51:44,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:51:44,233 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:51:44,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:51:44,233 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:51:44,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:51:44,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:51:44,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:51:44,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:51:44,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:51:44,234 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:51:44,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:51:44,235 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:51:44,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:51:44,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:51:44,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:51:44,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:51:44,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:51:44,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:51:44,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:51:44,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:51:44,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:51:44,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:51:44,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:51:44,237 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_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f79e4118373e847e0fb27fcdde0c282d507ddb96f3173b4556e1de9cae44280f [2022-11-02 20:51:44,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:51:44,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:51:44,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:51:44,552 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:51:44,553 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:51:44,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2022-11-02 20:51:44,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/data/a5d690483/40db4885146a4b10853e213a1d79f757/FLAGb82e0ed6e [2022-11-02 20:51:45,099 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:51:45,100 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2022-11-02 20:51:45,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/data/a5d690483/40db4885146a4b10853e213a1d79f757/FLAGb82e0ed6e [2022-11-02 20:51:45,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/data/a5d690483/40db4885146a4b10853e213a1d79f757 [2022-11-02 20:51:45,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:51:45,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:51:45,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:51:45,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:51:45,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:51:45,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774cf49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45, skipping insertion in model container [2022-11-02 20:51:45,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:51:45,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:51:45,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:51:45,711 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:51:45,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:51:45,738 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:51:45,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45 WrapperNode [2022-11-02 20:51:45,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:51:45,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:51:45,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:51:45,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:51:45,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,779 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-02 20:51:45,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:51:45,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:51:45,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:51:45,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:51:45,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,814 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:51:45,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:51:45,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:51:45,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:51:45,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (1/1) ... [2022-11-02 20:51:45,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:51:45,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:45,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:51:45,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:51:45,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:51:45,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:51:45,974 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:51:45,976 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:51:46,134 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:51:46,141 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:51:46,150 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:51:46,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:51:46 BoogieIcfgContainer [2022-11-02 20:51:46,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:51:46,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:51:46,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:51:46,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:51:46,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:51:45" (1/3) ... [2022-11-02 20:51:46,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301769d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:51:46, skipping insertion in model container [2022-11-02 20:51:46,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:45" (2/3) ... [2022-11-02 20:51:46,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301769d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:51:46, skipping insertion in model container [2022-11-02 20:51:46,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:51:46" (3/3) ... [2022-11-02 20:51:46,162 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2022-11-02 20:51:46,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:51:46,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-02 20:51:46,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:51:46,237 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4727c50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:51:46,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-02 20:51:46,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 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) [2022-11-02 20:51:46,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:51:46,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:46,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:51:46,250 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:46,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:46,255 INFO L85 PathProgramCache]: Analyzing trace with hash 889513677, now seen corresponding path program 1 times [2022-11-02 20:51:46,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:46,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789499618] [2022-11-02 20:51:46,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:46,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:46,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:46,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:46,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789499618] [2022-11-02 20:51:46,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789499618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:46,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:46,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:46,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504669112] [2022-11-02 20:51:46,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:46,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:46,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:46,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:46,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:46,463 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-02 20:51:46,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:46,508 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-11-02 20:51:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:46,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 [2022-11-02 20:51:46,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:46,519 INFO L225 Difference]: With dead ends: 41 [2022-11-02 20:51:46,520 INFO L226 Difference]: Without dead ends: 27 [2022-11-02 20:51:46,522 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:51:46,526 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 13 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:46,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 37 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:46,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-02 20:51:46,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-11-02 20:51:46,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 23 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) [2022-11-02 20:51:46,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-11-02 20:51:46,576 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 6 [2022-11-02 20:51:46,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:46,577 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-02 20:51:46,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-02 20:51:46,578 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-11-02 20:51:46,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 20:51:46,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:46,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:46,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:51:46,581 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:46,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:46,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120262, now seen corresponding path program 1 times [2022-11-02 20:51:46,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:46,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407740593] [2022-11-02 20:51:46,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:46,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:46,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:46,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407740593] [2022-11-02 20:51:46,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407740593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:46,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:46,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:46,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559679177] [2022-11-02 20:51:46,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:46,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:46,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:46,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:46,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:46,662 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-02 20:51:46,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:46,693 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-11-02 20:51:46,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:46,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-11-02 20:51:46,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:46,695 INFO L225 Difference]: With dead ends: 41 [2022-11-02 20:51:46,695 INFO L226 Difference]: Without dead ends: 39 [2022-11-02 20:51:46,695 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:51:46,697 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:46,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 20 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:46,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-02 20:51:46,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2022-11-02 20:51:46,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 36 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) [2022-11-02 20:51:46,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2022-11-02 20:51:46,705 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 7 [2022-11-02 20:51:46,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:46,705 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-11-02 20:51:46,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-02 20:51:46,706 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-11-02 20:51:46,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 20:51:46,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:46,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:46,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:51:46,707 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:46,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:46,708 INFO L85 PathProgramCache]: Analyzing trace with hash 124153334, now seen corresponding path program 1 times [2022-11-02 20:51:46,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:46,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608319789] [2022-11-02 20:51:46,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:46,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:46,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:46,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608319789] [2022-11-02 20:51:46,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608319789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:46,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:46,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:46,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597964958] [2022-11-02 20:51:46,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:46,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:46,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:46,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:46,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:46,754 INFO L87 Difference]: Start difference. First operand 37 states and 48 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) [2022-11-02 20:51:46,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:46,775 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2022-11-02 20:51:46,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:46,776 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 [2022-11-02 20:51:46,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:46,778 INFO L225 Difference]: With dead ends: 43 [2022-11-02 20:51:46,778 INFO L226 Difference]: Without dead ends: 42 [2022-11-02 20:51:46,779 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:51:46,781 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:46,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:46,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-02 20:51:46,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2022-11-02 20:51:46,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.5) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2022-11-02 20:51:46,790 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 8 [2022-11-02 20:51:46,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:46,790 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2022-11-02 20:51:46,790 INFO L496 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) [2022-11-02 20:51:46,791 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2022-11-02 20:51:46,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:51:46,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:46,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:46,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:51:46,792 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:46,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:46,793 INFO L85 PathProgramCache]: Analyzing trace with hash -446213880, now seen corresponding path program 1 times [2022-11-02 20:51:46,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:46,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311549044] [2022-11-02 20:51:46,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:46,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:46,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:46,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:46,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311549044] [2022-11-02 20:51:46,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311549044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:46,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:46,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:46,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626032329] [2022-11-02 20:51:46,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:46,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:46,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:46,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:46,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:46,881 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:46,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:46,908 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2022-11-02 20:51:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:46,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-02 20:51:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:46,915 INFO L225 Difference]: With dead ends: 40 [2022-11-02 20:51:46,915 INFO L226 Difference]: Without dead ends: 39 [2022-11-02 20:51:46,915 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:51:46,917 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:46,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:46,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-02 20:51:46,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-02 20:51:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.411764705882353) internal successors, (48), 38 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) [2022-11-02 20:51:46,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2022-11-02 20:51:46,924 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 9 [2022-11-02 20:51:46,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:46,925 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-11-02 20:51:46,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:46,925 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2022-11-02 20:51:46,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-02 20:51:46,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:46,930 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:46,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:51:46,930 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:46,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:46,931 INFO L85 PathProgramCache]: Analyzing trace with hash -233874170, now seen corresponding path program 1 times [2022-11-02 20:51:46,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:46,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165187022] [2022-11-02 20:51:46,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:46,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:47,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:47,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:47,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165187022] [2022-11-02 20:51:47,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165187022] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:47,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373262517] [2022-11-02 20:51:47,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:47,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:47,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:47,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:47,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:51:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:47,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:51:47,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:47,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:47,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:47,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373262517] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:47,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:47,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-02 20:51:47,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765165589] [2022-11-02 20:51:47,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:47,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:47,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:47,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:47,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:47,223 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2022-11-02 20:51:47,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:47,345 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2022-11-02 20:51:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:47,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) Word has length 12 [2022-11-02 20:51:47,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:47,351 INFO L225 Difference]: With dead ends: 98 [2022-11-02 20:51:47,351 INFO L226 Difference]: Without dead ends: 96 [2022-11-02 20:51:47,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:47,353 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:47,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 41 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:51:47,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-02 20:51:47,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 79. [2022-11-02 20:51:47,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 78 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) [2022-11-02 20:51:47,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2022-11-02 20:51:47,365 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 12 [2022-11-02 20:51:47,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:47,366 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2022-11-02 20:51:47,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2022-11-02 20:51:47,370 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2022-11-02 20:51:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-02 20:51:47,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:47,380 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:47,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-02 20:51:47,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:47,595 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:47,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:47,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1982025395, now seen corresponding path program 1 times [2022-11-02 20:51:47,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:47,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518548177] [2022-11-02 20:51:47,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:47,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:47,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:47,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:47,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518548177] [2022-11-02 20:51:47,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518548177] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:47,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886712924] [2022-11-02 20:51:47,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:47,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:47,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:47,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:47,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:51:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:47,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:51:47,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:47,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:47,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:47,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886712924] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:47,816 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:47,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-02 20:51:47,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330462658] [2022-11-02 20:51:47,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:47,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:47,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:47,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:47,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:47,818 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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) [2022-11-02 20:51:47,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:47,868 INFO L93 Difference]: Finished difference Result 135 states and 186 transitions. [2022-11-02 20:51:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:51:47,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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 13 [2022-11-02 20:51:47,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:47,870 INFO L225 Difference]: With dead ends: 135 [2022-11-02 20:51:47,870 INFO L226 Difference]: Without dead ends: 133 [2022-11-02 20:51:47,870 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:51:47,872 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 35 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:47,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 23 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:47,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-02 20:51:47,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 99. [2022-11-02 20:51:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.3473684210526315) internal successors, (128), 98 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:47,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 128 transitions. [2022-11-02 20:51:47,886 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 128 transitions. Word has length 13 [2022-11-02 20:51:47,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:47,887 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 128 transitions. [2022-11-02 20:51:47,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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) [2022-11-02 20:51:47,887 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 128 transitions. [2022-11-02 20:51:47,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 20:51:47,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:47,888 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:47,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:48,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-02 20:51:48,108 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:48,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:48,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1414776337, now seen corresponding path program 1 times [2022-11-02 20:51:48,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:48,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010435164] [2022-11-02 20:51:48,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:48,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:48,195 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:48,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:48,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010435164] [2022-11-02 20:51:48,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010435164] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:48,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778507341] [2022-11-02 20:51:48,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:48,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:48,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:48,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:48,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:51:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:48,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:51:48,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:48,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:48,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778507341] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:48,302 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:48,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-02 20:51:48,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063992898] [2022-11-02 20:51:48,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:48,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:48,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:48,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:48,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:48,304 INFO L87 Difference]: Start difference. First operand 99 states and 128 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 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) [2022-11-02 20:51:48,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:48,369 INFO L93 Difference]: Finished difference Result 207 states and 268 transitions. [2022-11-02 20:51:48,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:48,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 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) Word has length 14 [2022-11-02 20:51:48,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:48,371 INFO L225 Difference]: With dead ends: 207 [2022-11-02 20:51:48,371 INFO L226 Difference]: Without dead ends: 206 [2022-11-02 20:51:48,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:48,379 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 33 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:48,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 44 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-02 20:51:48,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 204. [2022-11-02 20:51:48,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.24) internal successors, (248), 203 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) [2022-11-02 20:51:48,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 248 transitions. [2022-11-02 20:51:48,421 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 248 transitions. Word has length 14 [2022-11-02 20:51:48,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:48,421 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 248 transitions. [2022-11-02 20:51:48,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 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) [2022-11-02 20:51:48,422 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 248 transitions. [2022-11-02 20:51:48,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-02 20:51:48,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:48,424 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-11-02 20:51:48,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:48,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 20:51:48,631 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:48,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:48,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1022063642, now seen corresponding path program 1 times [2022-11-02 20:51:48,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:48,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195121246] [2022-11-02 20:51:48,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:48,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:48,737 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:48,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:48,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195121246] [2022-11-02 20:51:48,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195121246] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:48,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500660574] [2022-11-02 20:51:48,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:48,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:48,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:48,742 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:48,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:51:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:48,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:51:48,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:48,848 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:48,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:48,928 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:48,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500660574] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:48,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:48,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-02 20:51:48,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900936529] [2022-11-02 20:51:48,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:48,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:51:48,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:48,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:51:48,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:51:48,936 INFO L87 Difference]: Start difference. First operand 204 states and 248 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 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) [2022-11-02 20:51:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:49,052 INFO L93 Difference]: Finished difference Result 399 states and 515 transitions. [2022-11-02 20:51:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:51:49,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 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) Word has length 19 [2022-11-02 20:51:49,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:49,055 INFO L225 Difference]: With dead ends: 399 [2022-11-02 20:51:49,055 INFO L226 Difference]: Without dead ends: 398 [2022-11-02 20:51:49,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:51:49,058 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 41 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:49,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 49 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:51:49,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-11-02 20:51:49,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 330. [2022-11-02 20:51:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 326 states have (on average 1.2760736196319018) internal successors, (416), 329 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) [2022-11-02 20:51:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 416 transitions. [2022-11-02 20:51:49,107 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 416 transitions. Word has length 19 [2022-11-02 20:51:49,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:49,108 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 416 transitions. [2022-11-02 20:51:49,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 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) [2022-11-02 20:51:49,108 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 416 transitions. [2022-11-02 20:51:49,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-02 20:51:49,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:49,110 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-02 20:51:49,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:49,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:49,317 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:49,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:49,317 INFO L85 PathProgramCache]: Analyzing trace with hash -957667535, now seen corresponding path program 2 times [2022-11-02 20:51:49,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:49,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388401073] [2022-11-02 20:51:49,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:49,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:49,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:49,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388401073] [2022-11-02 20:51:49,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388401073] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:49,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058282656] [2022-11-02 20:51:49,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:51:49,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:49,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:49,405 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:49,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:51:49,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:51:49,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:51:49,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:51:49,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:49,528 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:49,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:49,656 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:49,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058282656] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:49,656 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:49,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-02 20:51:49,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534085472] [2022-11-02 20:51:49,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:49,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:51:49,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:49,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:51:49,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:51:49,660 INFO L87 Difference]: Start difference. First operand 330 states and 416 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:49,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:49,803 INFO L93 Difference]: Finished difference Result 871 states and 1195 transitions. [2022-11-02 20:51:49,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:51:49,803 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 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 30 [2022-11-02 20:51:49,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:49,807 INFO L225 Difference]: With dead ends: 871 [2022-11-02 20:51:49,807 INFO L226 Difference]: Without dead ends: 869 [2022-11-02 20:51:49,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:51:49,808 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 111 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:49,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 81 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:51:49,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2022-11-02 20:51:49,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 573. [2022-11-02 20:51:49,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 569 states have (on average 1.2864674868189807) internal successors, (732), 572 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:49,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 732 transitions. [2022-11-02 20:51:49,854 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 732 transitions. Word has length 30 [2022-11-02 20:51:49,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:49,855 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 732 transitions. [2022-11-02 20:51:49,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:49,855 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 732 transitions. [2022-11-02 20:51:49,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 20:51:49,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:49,857 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-02 20:51:49,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:50,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:50,071 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:50,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:50,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1195498150, now seen corresponding path program 2 times [2022-11-02 20:51:50,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:50,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327912171] [2022-11-02 20:51:50,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:50,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:50,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:50,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327912171] [2022-11-02 20:51:50,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327912171] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:50,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179178428] [2022-11-02 20:51:50,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:51:50,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:50,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:50,163 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:50,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:51:50,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:51:50,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:51:50,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:51:50,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:50,274 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:50,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:50,386 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:50,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179178428] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:50,386 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:50,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-02 20:51:50,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253507455] [2022-11-02 20:51:50,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:50,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:51:50,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:50,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:51:50,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:51:50,388 INFO L87 Difference]: Start difference. First operand 573 states and 732 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 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) [2022-11-02 20:51:50,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:50,498 INFO L93 Difference]: Finished difference Result 1650 states and 2141 transitions. [2022-11-02 20:51:50,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:51:50,498 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 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 32 [2022-11-02 20:51:50,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:50,504 INFO L225 Difference]: With dead ends: 1650 [2022-11-02 20:51:50,504 INFO L226 Difference]: Without dead ends: 1649 [2022-11-02 20:51:50,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:51:50,506 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 85 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:50,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 86 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:50,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2022-11-02 20:51:50,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1645. [2022-11-02 20:51:50,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1641 states have (on average 1.193784277879342) internal successors, (1959), 1644 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:50,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 1959 transitions. [2022-11-02 20:51:50,605 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 1959 transitions. Word has length 32 [2022-11-02 20:51:50,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:50,605 INFO L495 AbstractCegarLoop]: Abstraction has 1645 states and 1959 transitions. [2022-11-02 20:51:50,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 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) [2022-11-02 20:51:50,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 1959 transitions. [2022-11-02 20:51:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-02 20:51:50,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:50,608 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 1, 1, 1, 1] [2022-11-02 20:51:50,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-02 20:51:50,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:50,835 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:50,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:50,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1056880102, now seen corresponding path program 2 times [2022-11-02 20:51:50,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:50,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398064306] [2022-11-02 20:51:50,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:50,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:50,951 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:50,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:50,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398064306] [2022-11-02 20:51:50,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398064306] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:50,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659851151] [2022-11-02 20:51:50,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:51:50,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:50,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:50,953 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:50,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 20:51:51,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:51:51,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:51:51,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:51:51,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:51,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:51,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659851151] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:51,241 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:51,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-02 20:51:51,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752929304] [2022-11-02 20:51:51,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:51,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:51:51,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:51,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:51:51,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:51:51,245 INFO L87 Difference]: Start difference. First operand 1645 states and 1959 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:51,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:51,543 INFO L93 Difference]: Finished difference Result 3431 states and 4254 transitions. [2022-11-02 20:51:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 20:51:51,543 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 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 43 [2022-11-02 20:51:51,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:51,555 INFO L225 Difference]: With dead ends: 3431 [2022-11-02 20:51:51,555 INFO L226 Difference]: Without dead ends: 3430 [2022-11-02 20:51:51,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:51:51,558 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 135 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:51,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 99 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:51:51,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3430 states. [2022-11-02 20:51:51,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3430 to 2080. [2022-11-02 20:51:51,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2080 states, 2076 states have (on average 1.2129094412331407) internal successors, (2518), 2079 states have internal predecessors, (2518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:51,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2518 transitions. [2022-11-02 20:51:51,704 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2518 transitions. Word has length 43 [2022-11-02 20:51:51,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:51,704 INFO L495 AbstractCegarLoop]: Abstraction has 2080 states and 2518 transitions. [2022-11-02 20:51:51,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:51,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2518 transitions. [2022-11-02 20:51:51,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-02 20:51:51,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:51,708 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-02 20:51:51,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:51,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:51,929 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:51,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:51,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1254740665, now seen corresponding path program 3 times [2022-11-02 20:51:51,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:51,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426480682] [2022-11-02 20:51:51,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:51,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:52,227 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:52,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:52,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426480682] [2022-11-02 20:51:52,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426480682] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:52,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271430555] [2022-11-02 20:51:52,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:51:52,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:52,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:52,229 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:52,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-02 20:51:52,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-02 20:51:52,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:51:52,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:51:52,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:52,393 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:52,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:52,717 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:52,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271430555] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:52,717 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:52,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-02 20:51:52,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549968781] [2022-11-02 20:51:52,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:52,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 20:51:52,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:52,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 20:51:52,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:51:52,719 INFO L87 Difference]: Start difference. First operand 2080 states and 2518 transitions. Second operand has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:53,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:53,096 INFO L93 Difference]: Finished difference Result 5604 states and 7380 transitions. [2022-11-02 20:51:53,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:51:53,097 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 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 [2022-11-02 20:51:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:53,114 INFO L225 Difference]: With dead ends: 5604 [2022-11-02 20:51:53,115 INFO L226 Difference]: Without dead ends: 5602 [2022-11-02 20:51:53,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:51:53,118 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 202 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:53,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 161 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:51:53,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5602 states. [2022-11-02 20:51:53,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5602 to 3121. [2022-11-02 20:51:53,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3117 states have (on average 1.232595444337504) internal successors, (3842), 3120 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:53,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 3842 transitions. [2022-11-02 20:51:53,306 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 3842 transitions. Word has length 66 [2022-11-02 20:51:53,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:53,307 INFO L495 AbstractCegarLoop]: Abstraction has 3121 states and 3842 transitions. [2022-11-02 20:51:53,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:53,308 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 3842 transitions. [2022-11-02 20:51:53,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-02 20:51:53,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:53,312 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-11-02 20:51:53,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:53,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-02 20:51:53,527 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:53,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:53,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1080032752, now seen corresponding path program 3 times [2022-11-02 20:51:53,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:53,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776745028] [2022-11-02 20:51:53,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:53,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:53,745 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:53,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:53,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776745028] [2022-11-02 20:51:53,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776745028] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:53,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815568147] [2022-11-02 20:51:53,746 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:51:53,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:53,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:53,747 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:53,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-02 20:51:53,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-02 20:51:53,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:51:53,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:51:53,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:53,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:54,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815568147] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:54,238 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:54,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-02 20:51:54,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495967405] [2022-11-02 20:51:54,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:54,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 20:51:54,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:54,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 20:51:54,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:51:54,240 INFO L87 Difference]: Start difference. First operand 3121 states and 3842 transitions. Second operand has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 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) [2022-11-02 20:51:54,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:54,812 INFO L93 Difference]: Finished difference Result 12257 states and 15589 transitions. [2022-11-02 20:51:54,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:51:54,813 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 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) Word has length 68 [2022-11-02 20:51:54,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:54,844 INFO L225 Difference]: With dead ends: 12257 [2022-11-02 20:51:54,844 INFO L226 Difference]: Without dead ends: 12256 [2022-11-02 20:51:54,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:51:54,850 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 226 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:54,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 172 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:51:54,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12256 states. [2022-11-02 20:51:55,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12256 to 12248. [2022-11-02 20:51:55,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12248 states, 12244 states have (on average 1.1621202221496243) internal successors, (14229), 12247 states have internal predecessors, (14229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:55,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12248 states to 12248 states and 14229 transitions. [2022-11-02 20:51:55,515 INFO L78 Accepts]: Start accepts. Automaton has 12248 states and 14229 transitions. Word has length 68 [2022-11-02 20:51:55,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:55,515 INFO L495 AbstractCegarLoop]: Abstraction has 12248 states and 14229 transitions. [2022-11-02 20:51:55,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 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) [2022-11-02 20:51:55,516 INFO L276 IsEmpty]: Start isEmpty. Operand 12248 states and 14229 transitions. [2022-11-02 20:51:55,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-02 20:51:55,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:55,578 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 1, 1, 1, 1] [2022-11-02 20:51:55,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:55,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:55,778 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:55,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:55,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1812968066, now seen corresponding path program 3 times [2022-11-02 20:51:55,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:55,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171247369] [2022-11-02 20:51:55,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:55,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:56,165 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:56,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:56,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171247369] [2022-11-02 20:51:56,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171247369] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:56,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700769690] [2022-11-02 20:51:56,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:51:56,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:56,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:56,167 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:56,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-02 20:51:56,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-02 20:51:56,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:51:56,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:51:56,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:56,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:56,943 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:56,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700769690] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:56,944 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:56,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2022-11-02 20:51:56,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711297915] [2022-11-02 20:51:56,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:56,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-02 20:51:56,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:56,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-02 20:51:56,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-02 20:51:56,946 INFO L87 Difference]: Start difference. First operand 12248 states and 14229 transitions. Second operand has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 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) [2022-11-02 20:51:58,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:58,345 INFO L93 Difference]: Finished difference Result 28887 states and 34639 transitions. [2022-11-02 20:51:58,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-02 20:51:58,346 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 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) Word has length 91 [2022-11-02 20:51:58,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:58,411 INFO L225 Difference]: With dead ends: 28887 [2022-11-02 20:51:58,411 INFO L226 Difference]: Without dead ends: 28886 [2022-11-02 20:51:58,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-02 20:51:58,423 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 323 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:58,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 194 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:51:58,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28886 states. [2022-11-02 20:51:59,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28886 to 14083. [2022-11-02 20:51:59,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14083 states, 14079 states have (on average 1.1735208466510405) internal successors, (16522), 14082 states have internal predecessors, (16522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14083 states to 14083 states and 16522 transitions. [2022-11-02 20:51:59,451 INFO L78 Accepts]: Start accepts. Automaton has 14083 states and 16522 transitions. Word has length 91 [2022-11-02 20:51:59,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:59,451 INFO L495 AbstractCegarLoop]: Abstraction has 14083 states and 16522 transitions. [2022-11-02 20:51:59,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 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) [2022-11-02 20:51:59,452 INFO L276 IsEmpty]: Start isEmpty. Operand 14083 states and 16522 transitions. [2022-11-02 20:51:59,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-02 20:51:59,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:59,485 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-11-02 20:51:59,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-02 20:51:59,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-02 20:51:59,711 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:51:59,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:59,711 INFO L85 PathProgramCache]: Analyzing trace with hash 924663923, now seen corresponding path program 4 times [2022-11-02 20:51:59,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:59,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376166863] [2022-11-02 20:51:59,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:59,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:00,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:00,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:00,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376166863] [2022-11-02 20:52:00,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376166863] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:52:00,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125833881] [2022-11-02 20:52:00,504 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:52:00,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:52:00,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:52:00,506 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:52:00,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-02 20:52:00,585 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:52:00,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:52:00,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-02 20:52:00,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:00,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:00,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:52:01,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:01,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125833881] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:52:01,873 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:52:01,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-02 20:52:01,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068930880] [2022-11-02 20:52:01,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:52:01,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-02 20:52:01,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:01,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-02 20:52:01,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 20:52:01,877 INFO L87 Difference]: Start difference. First operand 14083 states and 16522 transitions. Second operand has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 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) [2022-11-02 20:52:03,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:03,625 INFO L93 Difference]: Finished difference Result 40092 states and 50721 transitions. [2022-11-02 20:52:03,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-02 20:52:03,626 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 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) Word has length 138 [2022-11-02 20:52:03,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:03,704 INFO L225 Difference]: With dead ends: 40092 [2022-11-02 20:52:03,704 INFO L226 Difference]: Without dead ends: 40090 [2022-11-02 20:52:03,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 20:52:03,718 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 551 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:03,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 328 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:52:03,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40090 states. [2022-11-02 20:52:05,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40090 to 18566. [2022-11-02 20:52:05,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18566 states, 18562 states have (on average 1.1925439069065833) internal successors, (22136), 18565 states have internal predecessors, (22136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:05,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18566 states to 18566 states and 22136 transitions. [2022-11-02 20:52:05,100 INFO L78 Accepts]: Start accepts. Automaton has 18566 states and 22136 transitions. Word has length 138 [2022-11-02 20:52:05,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:05,100 INFO L495 AbstractCegarLoop]: Abstraction has 18566 states and 22136 transitions. [2022-11-02 20:52:05,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 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) [2022-11-02 20:52:05,101 INFO L276 IsEmpty]: Start isEmpty. Operand 18566 states and 22136 transitions. [2022-11-02 20:52:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-02 20:52:05,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:05,127 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-11-02 20:52:05,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:52:05,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-02 20:52:05,343 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:52:05,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:05,343 INFO L85 PathProgramCache]: Analyzing trace with hash -456198628, now seen corresponding path program 4 times [2022-11-02 20:52:05,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:05,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657683278] [2022-11-02 20:52:05,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:05,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:06,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:06,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:06,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657683278] [2022-11-02 20:52:06,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657683278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:52:06,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950935569] [2022-11-02 20:52:06,125 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:52:06,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:52:06,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:52:06,127 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:52:06,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-02 20:52:06,201 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:52:06,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:52:06,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-02 20:52:06,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:06,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:06,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:52:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:07,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950935569] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:52:07,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:52:07,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-02 20:52:07,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55751465] [2022-11-02 20:52:07,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:52:07,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-02 20:52:07,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:07,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-02 20:52:07,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 20:52:07,413 INFO L87 Difference]: Start difference. First operand 18566 states and 22136 transitions. Second operand has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 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) [2022-11-02 20:52:11,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:11,733 INFO L93 Difference]: Finished difference Result 94606 states and 118669 transitions. [2022-11-02 20:52:11,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-02 20:52:11,734 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 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) Word has length 140 [2022-11-02 20:52:11,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:11,907 INFO L225 Difference]: With dead ends: 94606 [2022-11-02 20:52:11,907 INFO L226 Difference]: Without dead ends: 94605 [2022-11-02 20:52:11,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 20:52:11,930 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 451 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:11,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 326 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:52:11,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94605 states. [2022-11-02 20:52:17,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94605 to 94589. [2022-11-02 20:52:17,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94589 states, 94585 states have (on average 1.144219485119205) internal successors, (108226), 94588 states have internal predecessors, (108226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:17,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94589 states to 94589 states and 108226 transitions. [2022-11-02 20:52:17,329 INFO L78 Accepts]: Start accepts. Automaton has 94589 states and 108226 transitions. Word has length 140 [2022-11-02 20:52:17,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:17,330 INFO L495 AbstractCegarLoop]: Abstraction has 94589 states and 108226 transitions. [2022-11-02 20:52:17,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 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) [2022-11-02 20:52:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 94589 states and 108226 transitions. [2022-11-02 20:52:17,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-02 20:52:17,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:17,375 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 1, 1, 1, 1] [2022-11-02 20:52:17,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:52:17,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-02 20:52:17,590 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:52:17,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:17,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1942998190, now seen corresponding path program 4 times [2022-11-02 20:52:17,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:17,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577796019] [2022-11-02 20:52:17,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:17,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:18,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:18,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:18,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577796019] [2022-11-02 20:52:18,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577796019] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:52:18,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329831433] [2022-11-02 20:52:18,926 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:52:18,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:52:18,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:52:18,943 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:52:18,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-02 20:52:19,033 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:52:19,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:52:19,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-02 20:52:19,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:19,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:52:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:21,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329831433] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:52:21,206 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:52:21,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2022-11-02 20:52:21,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064382910] [2022-11-02 20:52:21,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:52:21,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-02 20:52:21,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:21,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-02 20:52:21,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-11-02 20:52:21,210 INFO L87 Difference]: Start difference. First operand 94589 states and 108226 transitions. Second operand has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 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) [2022-11-02 20:52:31,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:52:31,519 INFO L93 Difference]: Finished difference Result 289856 states and 338922 transitions. [2022-11-02 20:52:31,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-02 20:52:31,519 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 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) Word has length 187 [2022-11-02 20:52:31,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:52:31,899 INFO L225 Difference]: With dead ends: 289856 [2022-11-02 20:52:31,899 INFO L226 Difference]: Without dead ends: 289855 [2022-11-02 20:52:32,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-11-02 20:52:32,015 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 724 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:52:32,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 388 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:52:32,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289855 states. [2022-11-02 20:52:40,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289855 to 102720. [2022-11-02 20:52:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102720 states, 102716 states have (on average 1.15056076950037) internal successors, (118181), 102719 states have internal predecessors, (118181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102720 states to 102720 states and 118181 transitions. [2022-11-02 20:52:41,106 INFO L78 Accepts]: Start accepts. Automaton has 102720 states and 118181 transitions. Word has length 187 [2022-11-02 20:52:41,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:52:41,106 INFO L495 AbstractCegarLoop]: Abstraction has 102720 states and 118181 transitions. [2022-11-02 20:52:41,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 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) [2022-11-02 20:52:41,106 INFO L276 IsEmpty]: Start isEmpty. Operand 102720 states and 118181 transitions. [2022-11-02 20:52:41,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-02 20:52:41,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:52:41,195 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2022-11-02 20:52:41,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-02 20:52:41,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22cd223-20ba-4a4c-82bd-e4153a6798cb/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:52:41,422 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-02 20:52:41,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:41,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2065071413, now seen corresponding path program 5 times [2022-11-02 20:52:41,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:41,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979524094] [2022-11-02 20:52:41,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:41,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat