./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/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_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/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 32bit --witnessprinter.graph.data.programhash dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- 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 20:33:51,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:33:51,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:33:51,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:33:51,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:33:52,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:33:52,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:33:52,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:33:52,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:33:52,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:33:52,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:33:52,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:33:52,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:33:52,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:33:52,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:33:52,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:33:52,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:33:52,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:33:52,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:33:52,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:33:52,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:33:52,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:33:52,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:33:52,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:33:52,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:33:52,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:33:52,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:33:52,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:33:52,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:33:52,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:33:52,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:33:52,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:33:52,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:33:52,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:33:52,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:33:52,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:33:52,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:33:52,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:33:52,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:33:52,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:33:52,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:33:52,077 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 20:33:52,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:33:52,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:33:52,128 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:33:52,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:33:52,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:33:52,130 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:33:52,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:33:52,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:33:52,131 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:33:52,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:33:52,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:33:52,133 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:33:52,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:33:52,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:33:52,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:33:52,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:33:52,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:33:52,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:33:52,135 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:33:52,135 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:33:52,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:33:52,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:33:52,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:33:52,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:33:52,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:33:52,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:33:52,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:33:52,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:33:52,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:33:52,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:33:52,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:33:52,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:33:52,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:33:52,139 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_43723f72-70a9-48a1-81c6-166fd5e52153/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2022-11-02 20:33:52,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:33:52,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:33:52,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:33:52,534 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:33:52,535 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:33:52,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2022-11-02 20:33:52,634 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/data/c448c1de1/a390e6b954b6492895eab078ad2cdc12/FLAG48bfd9538 [2022-11-02 20:33:53,415 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:33:53,416 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2022-11-02 20:33:53,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/data/c448c1de1/a390e6b954b6492895eab078ad2cdc12/FLAG48bfd9538 [2022-11-02 20:33:53,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/data/c448c1de1/a390e6b954b6492895eab078ad2cdc12 [2022-11-02 20:33:53,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:33:53,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:33:53,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:33:53,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:33:53,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:33:53,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:33:53" (1/1) ... [2022-11-02 20:33:53,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@daa88c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:53, skipping insertion in model container [2022-11-02 20:33:53,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:33:53" (1/1) ... [2022-11-02 20:33:53,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:33:53,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:33:54,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2022-11-02 20:33:54,374 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-02 20:33:54,375 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-02 20:33:54,375 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-02 20:33:54,376 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-02 20:33:54,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:33:54,462 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:33:54,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2022-11-02 20:33:54,535 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-02 20:33:54,537 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-02 20:33:54,538 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-02 20:33:54,539 WARN L1543 CHandler]: Possible shadowing of function new [2022-11-02 20:33:54,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:33:54,632 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:33:54,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54 WrapperNode [2022-11-02 20:33:54,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:33:54,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:33:54,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:33:54,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:33:54,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (1/1) ... [2022-11-02 20:33:54,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (1/1) ... [2022-11-02 20:33:54,698 INFO L138 Inliner]: procedures = 279, calls = 51, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 239 [2022-11-02 20:33:54,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:33:54,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:33:54,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:33:54,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:33:54,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (1/1) ... [2022-11-02 20:33:54,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (1/1) ... [2022-11-02 20:33:54,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (1/1) ... [2022-11-02 20:33:54,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (1/1) ... [2022-11-02 20:33:54,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (1/1) ... [2022-11-02 20:33:54,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (1/1) ... [2022-11-02 20:33:54,739 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (1/1) ... [2022-11-02 20:33:54,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (1/1) ... [2022-11-02 20:33:54,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:33:54,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:33:54,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:33:54,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:33:54,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (1/1) ... [2022-11-02 20:33:54,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:33:54,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:33:54,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:33:54,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:33:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:33:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:33:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:33:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:33:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:33:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:33:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:33:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:33:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:33:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:33:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:33:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:33:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:33:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:33:54,848 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:33:55,088 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:33:55,091 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:33:55,751 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:33:55,762 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:33:55,778 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-02 20:33:55,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:33:55 BoogieIcfgContainer [2022-11-02 20:33:55,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:33:55,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:33:55,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:33:55,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:33:55,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:33:53" (1/3) ... [2022-11-02 20:33:55,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb7b019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:33:55, skipping insertion in model container [2022-11-02 20:33:55,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:54" (2/3) ... [2022-11-02 20:33:55,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb7b019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:33:55, skipping insertion in model container [2022-11-02 20:33:55,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:33:55" (3/3) ... [2022-11-02 20:33:55,790 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2022-11-02 20:33:55,800 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:33:55,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:33:55,816 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-02 20:33:55,816 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:33:55,969 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 20:33:56,035 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:33:56,054 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 287 transitions, 582 flow [2022-11-02 20:33:56,065 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 287 transitions, 582 flow [2022-11-02 20:33:56,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 287 transitions, 582 flow [2022-11-02 20:33:56,269 INFO L130 PetriNetUnfolder]: 29/304 cut-off events. [2022-11-02 20:33:56,274 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2022-11-02 20:33:56,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 304 events. 29/304 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 755 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 167. Up to 4 conditions per place. [2022-11-02 20:33:56,299 INFO L118 LiptonReduction]: Number of co-enabled transitions 5400 [2022-11-02 20:34:35,828 WARN L234 SmtUtils]: Spent 17.79s on a formula simplification. DAG size of input: 188 DAG size of output: 186 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 20:34:43,759 WARN L234 SmtUtils]: Spent 7.92s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 20:35:05,927 WARN L234 SmtUtils]: Spent 22.16s on a formula simplification. DAG size of input: 188 DAG size of output: 186 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 20:35:14,437 WARN L234 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 20:35:37,230 WARN L234 SmtUtils]: Spent 22.59s on a formula simplification. DAG size of input: 190 DAG size of output: 188 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 20:35:49,892 WARN L234 SmtUtils]: Spent 12.66s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 20:36:17,665 WARN L234 SmtUtils]: Spent 27.77s on a formula simplification. DAG size of input: 188 DAG size of output: 187 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 20:36:26,915 WARN L234 SmtUtils]: Spent 9.25s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 20:36:26,925 INFO L133 LiptonReduction]: Checked pairs total: 5649 [2022-11-02 20:36:26,925 INFO L135 LiptonReduction]: Total number of compositions: 311 [2022-11-02 20:36:26,935 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 54 transitions, 116 flow [2022-11-02 20:36:26,965 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 187 states, 144 states have (on average 3.0625) internal successors, (441), 186 states have internal predecessors, (441), 0 states have call successors, (0), 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 20:36:26,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:36:26,993 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;@403dda5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:36:26,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2022-11-02 20:36:26,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 144 states have (on average 3.0625) internal successors, (441), 186 states have internal predecessors, (441), 0 states have call successors, (0), 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 20:36:27,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-02 20:36:27,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:27,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-02 20:36:27,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:27,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:27,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1117073, now seen corresponding path program 1 times [2022-11-02 20:36:27,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:27,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361303468] [2022-11-02 20:36:27,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:27,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:27,323 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 20:36:27,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:27,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361303468] [2022-11-02 20:36:27,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361303468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:27,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:27,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:36:27,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496080448] [2022-11-02 20:36:27,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:27,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:36:27,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:27,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:36:27,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:36:27,378 INFO L87 Difference]: Start difference. First operand has 187 states, 144 states have (on average 3.0625) internal successors, (441), 186 states have internal predecessors, (441), 0 states have call successors, (0), 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 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:27,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:27,704 INFO L93 Difference]: Finished difference Result 186 states and 359 transitions. [2022-11-02 20:36:27,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:36:27,707 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-02 20:36:27,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:27,720 INFO L225 Difference]: With dead ends: 186 [2022-11-02 20:36:27,720 INFO L226 Difference]: Without dead ends: 183 [2022-11-02 20:36:27,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:36:27,725 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:27,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:36:27,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-02 20:36:27,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-11-02 20:36:27,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 143 states have (on average 2.4755244755244754) internal successors, (354), 182 states have internal predecessors, (354), 0 states have call successors, (0), 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 20:36:27,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 354 transitions. [2022-11-02 20:36:27,815 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 354 transitions. Word has length 3 [2022-11-02 20:36:27,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:27,817 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 354 transitions. [2022-11-02 20:36:27,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:27,818 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 354 transitions. [2022-11-02 20:36:27,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-02 20:36:27,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:27,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-02 20:36:27,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:36:27,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:27,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:27,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1116945, now seen corresponding path program 1 times [2022-11-02 20:36:27,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:27,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940827831] [2022-11-02 20:36:27,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:27,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:27,854 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:36:27,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [919558135] [2022-11-02 20:36:27,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:27,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:27,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:27,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:36:27,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:36:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:27,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:36:27,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:36:27,999 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 20:36:27,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:36:27,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:28,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940827831] [2022-11-02 20:36:28,000 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:36:28,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919558135] [2022-11-02 20:36:28,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919558135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:28,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:28,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:36:28,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829465123] [2022-11-02 20:36:28,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:28,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:28,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:28,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:28,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:28,005 INFO L87 Difference]: Start difference. First operand 183 states and 354 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:28,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:28,464 INFO L93 Difference]: Finished difference Result 185 states and 358 transitions. [2022-11-02 20:36:28,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:36:28,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-02 20:36:28,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:28,466 INFO L225 Difference]: With dead ends: 185 [2022-11-02 20:36:28,467 INFO L226 Difference]: Without dead ends: 185 [2022-11-02 20:36:28,467 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 20:36:28,468 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:28,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:36:28,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-02 20:36:28,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2022-11-02 20:36:28,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 145 states have (on average 2.4689655172413794) internal successors, (358), 184 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:28,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 358 transitions. [2022-11-02 20:36:28,484 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 358 transitions. Word has length 3 [2022-11-02 20:36:28,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:28,484 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 358 transitions. [2022-11-02 20:36:28,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:28,485 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 358 transitions. [2022-11-02 20:36:28,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-02 20:36:28,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:28,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-02 20:36:28,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:36:28,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-02 20:36:28,706 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:28,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:28,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1117072, now seen corresponding path program 1 times [2022-11-02 20:36:28,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:28,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949803466] [2022-11-02 20:36:28,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:28,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:28,783 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:36:28,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [560546284] [2022-11-02 20:36:28,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:28,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:28,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:28,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:36:28,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:36:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:29,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:36:29,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:36:29,012 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 20:36:29,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:36:29,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:29,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949803466] [2022-11-02 20:36:29,021 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:36:29,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560546284] [2022-11-02 20:36:29,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560546284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:29,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:29,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:36:29,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275878199] [2022-11-02 20:36:29,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:29,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:29,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:29,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:29,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:29,026 INFO L87 Difference]: Start difference. First operand 185 states and 358 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:29,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:29,240 INFO L93 Difference]: Finished difference Result 184 states and 356 transitions. [2022-11-02 20:36:29,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:36:29,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-02 20:36:29,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:29,243 INFO L225 Difference]: With dead ends: 184 [2022-11-02 20:36:29,243 INFO L226 Difference]: Without dead ends: 184 [2022-11-02 20:36:29,243 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 20:36:29,244 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:29,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:36:29,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-02 20:36:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-11-02 20:36:29,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 145 states have (on average 2.4551724137931035) internal successors, (356), 183 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:29,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 356 transitions. [2022-11-02 20:36:29,271 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 356 transitions. Word has length 3 [2022-11-02 20:36:29,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:29,271 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 356 transitions. [2022-11-02 20:36:29,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:29,272 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 356 transitions. [2022-11-02 20:36:29,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:36:29,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:29,273 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1] [2022-11-02 20:36:29,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:36:29,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:29,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:29,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:29,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1073459366, now seen corresponding path program 1 times [2022-11-02 20:36:29,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:29,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763487245] [2022-11-02 20:36:29,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:29,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:29,527 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:36:29,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627142166] [2022-11-02 20:36:29,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:29,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:29,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:29,529 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:36:29,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:36:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:29,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:36:29,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:36:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:29,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:36:29,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:29,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763487245] [2022-11-02 20:36:29,684 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:36:29,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627142166] [2022-11-02 20:36:29,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627142166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:29,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:29,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:36:29,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96069243] [2022-11-02 20:36:29,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:29,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:29,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:29,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:29,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:29,694 INFO L87 Difference]: Start difference. First operand 184 states and 356 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:29,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:29,948 INFO L93 Difference]: Finished difference Result 188 states and 360 transitions. [2022-11-02 20:36:29,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:36:29,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:36:29,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:29,950 INFO L225 Difference]: With dead ends: 188 [2022-11-02 20:36:29,951 INFO L226 Difference]: Without dead ends: 188 [2022-11-02 20:36:29,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 20:36:29,952 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:29,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:36:29,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-02 20:36:29,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 186. [2022-11-02 20:36:29,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 147 states have (on average 2.4489795918367347) internal successors, (360), 185 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 360 transitions. [2022-11-02 20:36:29,964 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 360 transitions. Word has length 5 [2022-11-02 20:36:29,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:29,965 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 360 transitions. [2022-11-02 20:36:29,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:29,965 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 360 transitions. [2022-11-02 20:36:29,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:36:29,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:29,966 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-02 20:36:30,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:36:30,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:30,182 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:30,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:30,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1079973677, now seen corresponding path program 1 times [2022-11-02 20:36:30,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:30,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132214710] [2022-11-02 20:36:30,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:30,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:30,235 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:36:30,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076043128] [2022-11-02 20:36:30,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:30,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:30,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:30,250 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:36:30,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:36:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:30,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:36:30,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:36:30,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:30,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:36:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:30,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:30,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132214710] [2022-11-02 20:36:30,521 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:36:30,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076043128] [2022-11-02 20:36:30,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076043128] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:36:30,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:36:30,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-02 20:36:30,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089276473] [2022-11-02 20:36:30,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:36:30,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:30,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:30,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:30,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:30,523 INFO L87 Difference]: Start difference. First operand 186 states and 360 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 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 20:36:31,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:31,413 INFO L93 Difference]: Finished difference Result 198 states and 372 transitions. [2022-11-02 20:36:31,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:36:31,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 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 6 [2022-11-02 20:36:31,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:31,416 INFO L225 Difference]: With dead ends: 198 [2022-11-02 20:36:31,416 INFO L226 Difference]: Without dead ends: 198 [2022-11-02 20:36:31,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 20:36:31,417 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:31,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-02 20:36:31,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-02 20:36:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 192. [2022-11-02 20:36:31,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 153 states have (on average 2.4313725490196076) internal successors, (372), 191 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 20:36:31,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 372 transitions. [2022-11-02 20:36:31,428 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 372 transitions. Word has length 6 [2022-11-02 20:36:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:31,428 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 372 transitions. [2022-11-02 20:36:31,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 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 20:36:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 372 transitions. [2022-11-02 20:36:31,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:36:31,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:31,429 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1] [2022-11-02 20:36:31,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:36:31,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:31,649 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:31,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:31,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1684089882, now seen corresponding path program 2 times [2022-11-02 20:36:31,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:31,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479901587] [2022-11-02 20:36:31,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:31,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:31,738 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:36:31,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804779457] [2022-11-02 20:36:31,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:36:31,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:31,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:31,752 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:36:31,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:36:32,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:36:32,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:36:32,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:36:32,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:36:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-02 20:36:32,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:36:32,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:32,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479901587] [2022-11-02 20:36:32,035 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:36:32,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804779457] [2022-11-02 20:36:32,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804779457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:32,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:32,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:36:32,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129222995] [2022-11-02 20:36:32,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:32,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:32,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:32,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:32,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:32,037 INFO L87 Difference]: Start difference. First operand 192 states and 372 transitions. 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 20:36:32,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:32,266 INFO L93 Difference]: Finished difference Result 192 states and 370 transitions. [2022-11-02 20:36:32,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:36:32,267 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 9 [2022-11-02 20:36:32,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:32,269 INFO L225 Difference]: With dead ends: 192 [2022-11-02 20:36:32,269 INFO L226 Difference]: Without dead ends: 192 [2022-11-02 20:36:32,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 20:36:32,271 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:32,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:36:32,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-02 20:36:32,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-11-02 20:36:32,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 153 states have (on average 2.418300653594771) internal successors, (370), 191 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:32,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 370 transitions. [2022-11-02 20:36:32,280 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 370 transitions. Word has length 9 [2022-11-02 20:36:32,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:32,280 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 370 transitions. [2022-11-02 20:36:32,280 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 20:36:32,280 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 370 transitions. [2022-11-02 20:36:32,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:36:32,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:32,281 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1] [2022-11-02 20:36:32,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:36:32,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:32,490 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:32,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:32,491 INFO L85 PathProgramCache]: Analyzing trace with hash -667173815, now seen corresponding path program 3 times [2022-11-02 20:36:32,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:32,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832361295] [2022-11-02 20:36:32,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:32,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:32,603 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:36:32,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [958091989] [2022-11-02 20:36:32,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:36:32,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:32,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:32,605 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:36:32,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:36:33,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-02 20:36:33,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:36:33,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:36:33,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:36:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-02 20:36:33,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:36:33,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:33,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832361295] [2022-11-02 20:36:33,109 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:36:33,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958091989] [2022-11-02 20:36:33,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958091989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:33,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:33,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:36:33,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717702270] [2022-11-02 20:36:33,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:33,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:33,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:33,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:33,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:33,113 INFO L87 Difference]: Start difference. First operand 192 states and 370 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 20:36:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:33,531 INFO L93 Difference]: Finished difference Result 190 states and 365 transitions. [2022-11-02 20:36:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:36:33,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 10 [2022-11-02 20:36:33,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:33,534 INFO L225 Difference]: With dead ends: 190 [2022-11-02 20:36:33,534 INFO L226 Difference]: Without dead ends: 190 [2022-11-02 20:36:33,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 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 20:36:33,536 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:33,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:36:33,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-02 20:36:33,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-11-02 20:36:33,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 153 states have (on average 2.3856209150326797) internal successors, (365), 189 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:33,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 365 transitions. [2022-11-02 20:36:33,546 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 365 transitions. Word has length 10 [2022-11-02 20:36:33,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:33,546 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 365 transitions. [2022-11-02 20:36:33,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 20:36:33,547 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 365 transitions. [2022-11-02 20:36:33,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:36:33,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:33,547 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1] [2022-11-02 20:36:33,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:36:33,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:33,762 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:33,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:33,763 INFO L85 PathProgramCache]: Analyzing trace with hash -667173962, now seen corresponding path program 1 times [2022-11-02 20:36:33,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:33,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014681466] [2022-11-02 20:36:33,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:33,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:33,856 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:36:33,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [992311027] [2022-11-02 20:36:33,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:33,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:33,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:33,858 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:36:33,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 20:36:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:34,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:36:34,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:36:34,632 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:36:34,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:36:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:36:34,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:34,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014681466] [2022-11-02 20:36:34,727 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:36:34,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992311027] [2022-11-02 20:36:34,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992311027] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:36:34,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:36:34,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-02 20:36:34,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462128926] [2022-11-02 20:36:34,728 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:36:34,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:36:34,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:34,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:36:34,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:36:34,729 INFO L87 Difference]: Start difference. First operand 190 states and 365 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:35,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:35,753 INFO L93 Difference]: Finished difference Result 210 states and 383 transitions. [2022-11-02 20:36:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:36:35,754 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-02 20:36:35,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:35,755 INFO L225 Difference]: With dead ends: 210 [2022-11-02 20:36:35,756 INFO L226 Difference]: Without dead ends: 210 [2022-11-02 20:36:35,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 20:36:35,757 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:35,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 16 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 20:36:35,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-02 20:36:35,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 202. [2022-11-02 20:36:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 165 states have (on average 2.3212121212121213) internal successors, (383), 201 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:35,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 383 transitions. [2022-11-02 20:36:35,766 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 383 transitions. Word has length 10 [2022-11-02 20:36:35,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:35,766 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 383 transitions. [2022-11-02 20:36:35,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:35,766 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 383 transitions. [2022-11-02 20:36:35,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-02 20:36:35,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:35,767 INFO L195 NwaCegarLoop]: trace histogram [11, 2, 1, 1, 1] [2022-11-02 20:36:35,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:36:35,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-02 20:36:35,994 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:35,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:35,995 INFO L85 PathProgramCache]: Analyzing trace with hash -442372394, now seen corresponding path program 2 times [2022-11-02 20:36:35,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:35,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58163157] [2022-11-02 20:36:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:35,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:36,206 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:36:36,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [498764791] [2022-11-02 20:36:36,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:36:36,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:36,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:36,208 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:36:36,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-02 20:36:37,444 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:36:37,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:36:37,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:36:37,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:36:37,636 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 23 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:36:37,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:36:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 23 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:36:37,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:37,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58163157] [2022-11-02 20:36:37,983 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:36:37,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498764791] [2022-11-02 20:36:37,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498764791] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:36:37,983 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:36:37,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2022-11-02 20:36:37,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169519843] [2022-11-02 20:36:37,984 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:36:37,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 20:36:37,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 20:36:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:36:37,986 INFO L87 Difference]: Start difference. First operand 202 states and 383 transitions. Second operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 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 20:36:41,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:41,203 INFO L93 Difference]: Finished difference Result 246 states and 419 transitions. [2022-11-02 20:36:41,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:36:41,204 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 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 16 [2022-11-02 20:36:41,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:41,205 INFO L225 Difference]: With dead ends: 246 [2022-11-02 20:36:41,206 INFO L226 Difference]: Without dead ends: 246 [2022-11-02 20:36:41,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:36:41,207 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 56 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:41,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 16 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-02 20:36:41,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-02 20:36:41,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 226. [2022-11-02 20:36:41,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 189 states have (on average 2.2169312169312168) internal successors, (419), 225 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:41,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 419 transitions. [2022-11-02 20:36:41,217 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 419 transitions. Word has length 16 [2022-11-02 20:36:41,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:41,217 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 419 transitions. [2022-11-02 20:36:41,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 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 20:36:41,218 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 419 transitions. [2022-11-02 20:36:41,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-02 20:36:41,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:41,219 INFO L195 NwaCegarLoop]: trace histogram [23, 2, 1, 1, 1] [2022-11-02 20:36:41,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-02 20:36:41,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-02 20:36:41,432 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:41,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:41,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1479527702, now seen corresponding path program 3 times [2022-11-02 20:36:41,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:41,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570876958] [2022-11-02 20:36:41,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:41,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:41,806 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:36:41,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774816327] [2022-11-02 20:36:41,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:36:41,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:41,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:41,808 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:36:41,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-02 20:36:43,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-02 20:36:43,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:36:43,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:36:43,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:36:43,161 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-11-02 20:36:43,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:36:43,515 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-11-02 20:36:43,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:43,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570876958] [2022-11-02 20:36:43,515 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:36:43,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774816327] [2022-11-02 20:36:43,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774816327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:36:43,516 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:36:43,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2022-11-02 20:36:43,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98769049] [2022-11-02 20:36:43,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:36:43,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:36:43,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:43,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:36:43,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:36:43,518 INFO L87 Difference]: Start difference. First operand 226 states and 419 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:47,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:47,655 INFO L93 Difference]: Finished difference Result 425 states and 788 transitions. [2022-11-02 20:36:47,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:36:47,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-02 20:36:47,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:47,659 INFO L225 Difference]: With dead ends: 425 [2022-11-02 20:36:47,659 INFO L226 Difference]: Without dead ends: 425 [2022-11-02 20:36:47,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:36:47,660 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 76 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:47,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 32 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-02 20:36:47,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-11-02 20:36:47,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 249. [2022-11-02 20:36:47,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 213 states have (on average 2.075117370892019) internal successors, (442), 248 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:47,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 442 transitions. [2022-11-02 20:36:47,671 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 442 transitions. Word has length 28 [2022-11-02 20:36:47,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:47,672 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 442 transitions. [2022-11-02 20:36:47,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:47,672 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 442 transitions. [2022-11-02 20:36:47,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 20:36:47,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:47,674 INFO L195 NwaCegarLoop]: trace histogram [44, 2, 2, 1, 1, 1, 1, 1] [2022-11-02 20:36:47,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:36:47,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-02 20:36:47,890 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:47,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:47,891 INFO L85 PathProgramCache]: Analyzing trace with hash -2092815168, now seen corresponding path program 1 times [2022-11-02 20:36:47,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:47,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304186900] [2022-11-02 20:36:47,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:47,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:48,478 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:36:48,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763373154] [2022-11-02 20:36:48,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:48,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:48,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:48,480 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:36:48,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-02 20:36:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:52,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 10464 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-02 20:36:52,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:36:52,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 531 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-11-02 20:36:52,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:36:53,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 531 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-11-02 20:36:53,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:53,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304186900] [2022-11-02 20:36:53,233 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:36:53,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763373154] [2022-11-02 20:36:53,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763373154] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:36:53,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:36:53,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2022-11-02 20:36:53,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372239910] [2022-11-02 20:36:53,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:36:53,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-02 20:36:53,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:53,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-02 20:36:53,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-02 20:36:53,236 INFO L87 Difference]: Start difference. First operand 249 states and 442 transitions. Second operand has 32 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:55,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:55,613 INFO L93 Difference]: Finished difference Result 300 states and 474 transitions. [2022-11-02 20:36:55,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-02 20:36:55,614 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-11-02 20:36:55,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:55,615 INFO L225 Difference]: With dead ends: 300 [2022-11-02 20:36:55,616 INFO L226 Difference]: Without dead ends: 300 [2022-11-02 20:36:55,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 58 SyntacticMatches, 16 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-02 20:36:55,617 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 83 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:55,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 16 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-02 20:36:55,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-11-02 20:36:55,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 273. [2022-11-02 20:36:55,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 237 states have (on average 2.0) internal successors, (474), 272 states have internal predecessors, (474), 0 states have call successors, (0), 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 20:36:55,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 474 transitions. [2022-11-02 20:36:55,629 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 474 transitions. Word has length 53 [2022-11-02 20:36:55,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:55,629 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 474 transitions. [2022-11-02 20:36:55,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:55,630 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 474 transitions. [2022-11-02 20:36:55,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-02 20:36:55,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:55,631 INFO L195 NwaCegarLoop]: trace histogram [60, 2, 2, 1, 1, 1, 1, 1] [2022-11-02 20:36:55,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:36:55,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-02 20:36:55,845 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:36:55,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:55,845 INFO L85 PathProgramCache]: Analyzing trace with hash 2143188160, now seen corresponding path program 2 times [2022-11-02 20:36:55,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:55,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651438968] [2022-11-02 20:36:55,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:55,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:56,932 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:36:56,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [459467103] [2022-11-02 20:36:56,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:36:56,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:36:56,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:56,933 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:36:56,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-02 20:36:59,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:36:59,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:36:59,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:36:59,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:36:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2022-11-02 20:36:59,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:36:59,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:59,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651438968] [2022-11-02 20:36:59,897 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:36:59,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459467103] [2022-11-02 20:36:59,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459467103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:59,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:59,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:36:59,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701901394] [2022-11-02 20:36:59,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:59,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:36:59,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:59,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:36:59,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:36:59,899 INFO L87 Difference]: Start difference. First operand 273 states and 474 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 20:37:00,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:00,158 INFO L93 Difference]: Finished difference Result 254 states and 434 transitions. [2022-11-02 20:37:00,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:37:00,160 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 69 [2022-11-02 20:37:00,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:00,161 INFO L225 Difference]: With dead ends: 254 [2022-11-02 20:37:00,161 INFO L226 Difference]: Without dead ends: 254 [2022-11-02 20:37:00,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 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 20:37:00,162 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:00,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 7 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:37:00,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-11-02 20:37:00,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2022-11-02 20:37:00,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 225 states have (on average 1.9288888888888889) internal successors, (434), 253 states have internal predecessors, (434), 0 states have call successors, (0), 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 20:37:00,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 434 transitions. [2022-11-02 20:37:00,171 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 434 transitions. Word has length 69 [2022-11-02 20:37:00,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:00,172 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 434 transitions. [2022-11-02 20:37:00,172 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 20:37:00,172 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 434 transitions. [2022-11-02 20:37:00,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-02 20:37:00,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:00,173 INFO L195 NwaCegarLoop]: trace histogram [60, 2, 2, 1, 1, 1, 1, 1] [2022-11-02 20:37:00,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-11-02 20:37:00,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:37:00,392 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:37:00,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:00,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2143188161, now seen corresponding path program 1 times [2022-11-02 20:37:00,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:00,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364845117] [2022-11-02 20:37:00,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:00,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:01,210 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:37:01,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569091516] [2022-11-02 20:37:01,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:01,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:37:01,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:37:01,212 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:37:01,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-02 20:37:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:07,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 14208 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:37:07,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-11-02 20:37:07,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:37:07,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-11-02 20:37:07,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:07,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364845117] [2022-11-02 20:37:07,596 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:37:07,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569091516] [2022-11-02 20:37:07,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569091516] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:37:07,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:37:07,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-02 20:37:07,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750379347] [2022-11-02 20:37:07,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:37:07,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:37:07,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:07,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:37:07,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:37:07,599 INFO L87 Difference]: Start difference. First operand 254 states and 434 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:08,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:08,139 INFO L93 Difference]: Finished difference Result 351 states and 621 transitions. [2022-11-02 20:37:08,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:37:08,140 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-02 20:37:08,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:08,142 INFO L225 Difference]: With dead ends: 351 [2022-11-02 20:37:08,142 INFO L226 Difference]: Without dead ends: 351 [2022-11-02 20:37:08,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 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 20:37:08,143 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:08,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 8 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:37:08,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-11-02 20:37:08,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2022-11-02 20:37:08,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 322 states have (on average 1.9285714285714286) internal successors, (621), 350 states have internal predecessors, (621), 0 states have call successors, (0), 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 20:37:08,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 621 transitions. [2022-11-02 20:37:08,155 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 621 transitions. Word has length 69 [2022-11-02 20:37:08,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:08,155 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 621 transitions. [2022-11-02 20:37:08,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:08,156 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 621 transitions. [2022-11-02 20:37:08,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-02 20:37:08,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:08,157 INFO L195 NwaCegarLoop]: trace histogram [62, 3, 2, 1, 1] [2022-11-02 20:37:08,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:08,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:37:08,370 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-02 20:37:08,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:08,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2142057864, now seen corresponding path program 4 times [2022-11-02 20:37:08,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:08,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789744483] [2022-11-02 20:37:08,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:08,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:09,148 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:37:09,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125944863] [2022-11-02 20:37:09,149 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:37:09,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:37:09,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:37:09,154 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:37:09,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43723f72-70a9-48a1-81c6-166fd5e52153/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process