./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8 --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 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff --- 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-2329fc7 [2022-12-13 11:40:51,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:40:51,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:40:51,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:40:51,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:40:51,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:40:51,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:40:51,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:40:51,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:40:51,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:40:51,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:40:51,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:40:51,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:40:51,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:40:51,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:40:51,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:40:51,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:40:51,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:40:51,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:40:51,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:40:51,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:40:51,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:40:51,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:40:51,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:40:51,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:40:51,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:40:51,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:40:51,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:40:51,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:40:51,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:40:51,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:40:51,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:40:51,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:40:51,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:40:51,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:40:51,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:40:51,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:40:51,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:40:51,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:40:51,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:40:51,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:40:51,699 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 11:40:51,727 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:40:51,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:40:51,728 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:40:51,728 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:40:51,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:40:51,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:40:51,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:40:51,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:40:51,729 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:40:51,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:40:51,729 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:40:51,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:40:51,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:40:51,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:40:51,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:40:51,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:40:51,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:40:51,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:40:51,730 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:40:51,730 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:40:51,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:40:51,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:40:51,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:40:51,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:40:51,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:40:51,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:40:51,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:40:51,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:40:51,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:40:51,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:40:51,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:40:51,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:40:51,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:40:51,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:40:51,731 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:40:51,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:40:51,731 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:40:51,732 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff [2022-12-13 11:40:51,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:40:51,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:40:51,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:40:51,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:40:51,920 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:40:51,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-12-13 11:40:54,568 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:40:54,727 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:40:54,728 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-12-13 11:40:54,734 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/data/d27408d25/50bbf90e306543eab3034b8b8cdd8193/FLAGdcf1284ba [2022-12-13 11:40:54,748 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/data/d27408d25/50bbf90e306543eab3034b8b8cdd8193 [2022-12-13 11:40:54,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:40:54,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:40:54,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:40:54,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:40:54,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:40:54,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:40:54" (1/1) ... [2022-12-13 11:40:54,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7706a264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:54, skipping insertion in model container [2022-12-13 11:40:54,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:40:54" (1/1) ... [2022-12-13 11:40:54,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:40:54,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:40:54,947 WARN L237 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_2f2d415f-c015-4de5-92e1-de2e8ac53495/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-12-13 11:40:54,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:40:54,962 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:40:54,984 WARN L237 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_2f2d415f-c015-4de5-92e1-de2e8ac53495/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-12-13 11:40:54,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:40:55,000 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:40:55,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55 WrapperNode [2022-12-13 11:40:55,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:40:55,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:40:55,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:40:55,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:40:55,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (1/1) ... [2022-12-13 11:40:55,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (1/1) ... [2022-12-13 11:40:55,043 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 286 [2022-12-13 11:40:55,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:40:55,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:40:55,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:40:55,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:40:55,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (1/1) ... [2022-12-13 11:40:55,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (1/1) ... [2022-12-13 11:40:55,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (1/1) ... [2022-12-13 11:40:55,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (1/1) ... [2022-12-13 11:40:55,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (1/1) ... [2022-12-13 11:40:55,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (1/1) ... [2022-12-13 11:40:55,067 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (1/1) ... [2022-12-13 11:40:55,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (1/1) ... [2022-12-13 11:40:55,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:40:55,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:40:55,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:40:55,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:40:55,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (1/1) ... [2022-12-13 11:40:55,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:40:55,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:40:55,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:40:55,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:40:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:40:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 11:40:55,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 11:40:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 11:40:55,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 11:40:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 11:40:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 11:40:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:40:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:40:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:40:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:40:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:40:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:40:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:40:55,140 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 11:40:55,232 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:40:55,233 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:40:55,604 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:40:55,626 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:40:55,626 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:40:55,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:40:55 BoogieIcfgContainer [2022-12-13 11:40:55,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:40:55,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:40:55,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:40:55,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:40:55,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:40:54" (1/3) ... [2022-12-13 11:40:55,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da3a044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:40:55, skipping insertion in model container [2022-12-13 11:40:55,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:40:55" (2/3) ... [2022-12-13 11:40:55,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da3a044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:40:55, skipping insertion in model container [2022-12-13 11:40:55,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:40:55" (3/3) ... [2022-12-13 11:40:55,638 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2022-12-13 11:40:55,646 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:40:55,661 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:40:55,661 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-12-13 11:40:55,661 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:40:55,783 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 11:40:55,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 397 places, 412 transitions, 848 flow [2022-12-13 11:40:55,956 INFO L130 PetriNetUnfolder]: 25/409 cut-off events. [2022-12-13 11:40:55,957 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 11:40:55,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 409 events. 25/409 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 944 event pairs, 0 based on Foata normal form. 0/348 useless extension candidates. Maximal degree in co-relation 328. Up to 2 conditions per place. [2022-12-13 11:40:55,970 INFO L82 GeneralOperation]: Start removeDead. Operand has 397 places, 412 transitions, 848 flow [2022-12-13 11:40:55,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 388 transitions, 791 flow [2022-12-13 11:40:55,983 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:40:55,992 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 388 transitions, 791 flow [2022-12-13 11:40:55,995 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 388 transitions, 791 flow [2022-12-13 11:40:55,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 388 transitions, 791 flow [2022-12-13 11:40:56,073 INFO L130 PetriNetUnfolder]: 24/388 cut-off events. [2022-12-13 11:40:56,073 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:40:56,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 388 events. 24/388 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 941 event pairs, 0 based on Foata normal form. 0/328 useless extension candidates. Maximal degree in co-relation 328. Up to 2 conditions per place. [2022-12-13 11:40:56,097 INFO L119 LiptonReduction]: Number of co-enabled transitions 71070 [2022-12-13 11:41:27,861 INFO L134 LiptonReduction]: Checked pairs total: 67350 [2022-12-13 11:41:27,861 INFO L136 LiptonReduction]: Total number of compositions: 545 [2022-12-13 11:41:27,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:41:27,880 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=PETRI_NET, 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;@33034685, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:41:27,880 INFO L358 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2022-12-13 11:41:27,883 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-13 11:41:27,883 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:27,883 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:27,884 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:41:27,884 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:27,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:27,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1747722, now seen corresponding path program 1 times [2022-12-13 11:41:27,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:27,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751975159] [2022-12-13 11:41:27,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:27,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:28,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:28,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751975159] [2022-12-13 11:41:28,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751975159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:28,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:28,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:28,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273682334] [2022-12-13 11:41:28,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:28,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:28,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:28,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:28,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:28,091 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:28,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:28,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:28,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:28,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:29,485 INFO L130 PetriNetUnfolder]: 4205/6222 cut-off events. [2022-12-13 11:41:29,485 INFO L131 PetriNetUnfolder]: For 107/107 co-relation queries the response was YES. [2022-12-13 11:41:29,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12748 conditions, 6222 events. 4205/6222 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 803. Compared 36311 event pairs, 4205 based on Foata normal form. 0/1810 useless extension candidates. Maximal degree in co-relation 11566. Up to 6222 conditions per place. [2022-12-13 11:41:29,507 INFO L137 encePairwiseOnDemand]: 942/957 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2022-12-13 11:41:29,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 159 flow [2022-12-13 11:41:29,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:29,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:29,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1220 transitions. [2022-12-13 11:41:29,520 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42493904562870083 [2022-12-13 11:41:29,521 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1220 transitions. [2022-12-13 11:41:29,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1220 transitions. [2022-12-13 11:41:29,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:29,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1220 transitions. [2022-12-13 11:41:29,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:29,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:29,539 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:29,540 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 115 flow. Second operand 3 states and 1220 transitions. [2022-12-13 11:41:29,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 159 flow [2022-12-13 11:41:29,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 150 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 11:41:29,549 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 80 flow [2022-12-13 11:41:29,550 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2022-12-13 11:41:29,553 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2022-12-13 11:41:29,553 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 80 flow [2022-12-13 11:41:29,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:29,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:29,554 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:41:29,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:41:29,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:29,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:29,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1747853, now seen corresponding path program 1 times [2022-12-13 11:41:29,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:29,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974108714] [2022-12-13 11:41:29,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:29,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:29,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:29,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974108714] [2022-12-13 11:41:29,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974108714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:29,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:29,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:29,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567225402] [2022-12-13 11:41:29,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:29,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:29,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:29,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:29,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:29,636 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:29,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:29,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:29,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:29,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:30,720 INFO L130 PetriNetUnfolder]: 3363/5000 cut-off events. [2022-12-13 11:41:30,721 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:30,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10157 conditions, 5000 events. 3363/5000 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 28291 event pairs, 3363 based on Foata normal form. 0/1514 useless extension candidates. Maximal degree in co-relation 10151. Up to 5000 conditions per place. [2022-12-13 11:41:30,736 INFO L137 encePairwiseOnDemand]: 954/957 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2022-12-13 11:41:30,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 144 flow [2022-12-13 11:41:30,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:30,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1206 transitions. [2022-12-13 11:41:30,738 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4200626959247649 [2022-12-13 11:41:30,739 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1206 transitions. [2022-12-13 11:41:30,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1206 transitions. [2022-12-13 11:41:30,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:30,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1206 transitions. [2022-12-13 11:41:30,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:30,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:30,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:30,745 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 80 flow. Second operand 3 states and 1206 transitions. [2022-12-13 11:41:30,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 144 flow [2022-12-13 11:41:30,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 34 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:41:30,746 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 77 flow [2022-12-13 11:41:30,746 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2022-12-13 11:41:30,747 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2022-12-13 11:41:30,747 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 77 flow [2022-12-13 11:41:30,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:30,748 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:30,748 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:41:30,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:41:30,748 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:30,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:30,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1747855, now seen corresponding path program 1 times [2022-12-13 11:41:30,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:30,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439238100] [2022-12-13 11:41:30,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:30,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:30,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:30,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439238100] [2022-12-13 11:41:30,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439238100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:30,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:30,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:30,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194675764] [2022-12-13 11:41:30,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:30,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:30,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:30,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:30,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:30,824 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:30,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:30,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:30,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:30,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:31,743 INFO L130 PetriNetUnfolder]: 2615/3912 cut-off events. [2022-12-13 11:41:31,743 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:31,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7949 conditions, 3912 events. 2615/3912 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 21419 event pairs, 2615 based on Foata normal form. 0/1244 useless extension candidates. Maximal degree in co-relation 7942. Up to 3912 conditions per place. [2022-12-13 11:41:31,753 INFO L137 encePairwiseOnDemand]: 954/957 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2022-12-13 11:41:31,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 32 transitions, 137 flow [2022-12-13 11:41:31,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1204 transitions. [2022-12-13 11:41:31,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41936607453848834 [2022-12-13 11:41:31,756 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1204 transitions. [2022-12-13 11:41:31,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1204 transitions. [2022-12-13 11:41:31,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:31,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1204 transitions. [2022-12-13 11:41:31,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:31,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:31,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:31,761 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 77 flow. Second operand 3 states and 1204 transitions. [2022-12-13 11:41:31,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 32 transitions, 137 flow [2022-12-13 11:41:31,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:41:31,762 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 74 flow [2022-12-13 11:41:31,762 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2022-12-13 11:41:31,763 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -19 predicate places. [2022-12-13 11:41:31,763 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 74 flow [2022-12-13 11:41:31,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:31,763 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:31,763 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:41:31,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:41:31,763 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:31,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:31,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1747856, now seen corresponding path program 1 times [2022-12-13 11:41:31,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:31,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010495246] [2022-12-13 11:41:31,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:31,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:31,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:31,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:31,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010495246] [2022-12-13 11:41:31,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010495246] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:31,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:31,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:31,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586477221] [2022-12-13 11:41:31,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:31,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:31,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:31,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:31,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:31,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:31,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:31,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:31,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:31,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:32,466 INFO L130 PetriNetUnfolder]: 1961/2958 cut-off events. [2022-12-13 11:41:32,466 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:32,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6013 conditions, 2958 events. 1961/2958 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 15544 event pairs, 1961 based on Foata normal form. 0/1000 useless extension candidates. Maximal degree in co-relation 6005. Up to 2958 conditions per place. [2022-12-13 11:41:32,478 INFO L137 encePairwiseOnDemand]: 954/957 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2022-12-13 11:41:32,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 130 flow [2022-12-13 11:41:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:32,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:32,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1202 transitions. [2022-12-13 11:41:32,481 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41866945315221177 [2022-12-13 11:41:32,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1202 transitions. [2022-12-13 11:41:32,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1202 transitions. [2022-12-13 11:41:32,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:32,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1202 transitions. [2022-12-13 11:41:32,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 400.6666666666667) internal successors, (1202), 3 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:32,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:32,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:32,487 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 74 flow. Second operand 3 states and 1202 transitions. [2022-12-13 11:41:32,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 130 flow [2022-12-13 11:41:32,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 129 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:41:32,488 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 71 flow [2022-12-13 11:41:32,488 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2022-12-13 11:41:32,488 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -20 predicate places. [2022-12-13 11:41:32,488 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 71 flow [2022-12-13 11:41:32,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:32,489 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:32,489 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:41:32,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:41:32,489 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:32,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:32,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1747835, now seen corresponding path program 1 times [2022-12-13 11:41:32,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:32,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064004702] [2022-12-13 11:41:32,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:32,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:32,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:32,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:32,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064004702] [2022-12-13 11:41:32,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064004702] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:32,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:32,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:32,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340945142] [2022-12-13 11:41:32,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:32,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:32,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:32,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:32,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:32,543 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:32,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:32,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:32,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:32,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:33,038 INFO L130 PetriNetUnfolder]: 1401/2138 cut-off events. [2022-12-13 11:41:33,038 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:33,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4349 conditions, 2138 events. 1401/2138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 10668 event pairs, 1401 based on Foata normal form. 0/782 useless extension candidates. Maximal degree in co-relation 4340. Up to 2138 conditions per place. [2022-12-13 11:41:33,043 INFO L137 encePairwiseOnDemand]: 954/957 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2022-12-13 11:41:33,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 28 transitions, 123 flow [2022-12-13 11:41:33,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:33,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:33,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1200 transitions. [2022-12-13 11:41:33,045 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4179728317659352 [2022-12-13 11:41:33,045 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1200 transitions. [2022-12-13 11:41:33,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1200 transitions. [2022-12-13 11:41:33,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:33,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1200 transitions. [2022-12-13 11:41:33,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 400.0) internal successors, (1200), 3 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,051 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,051 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 71 flow. Second operand 3 states and 1200 transitions. [2022-12-13 11:41:33,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 28 transitions, 123 flow [2022-12-13 11:41:33,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 28 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:41:33,052 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 68 flow [2022-12-13 11:41:33,052 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2022-12-13 11:41:33,052 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -21 predicate places. [2022-12-13 11:41:33,052 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 68 flow [2022-12-13 11:41:33,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,053 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:33,053 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:41:33,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:41:33,053 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:33,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1747836, now seen corresponding path program 1 times [2022-12-13 11:41:33,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:33,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59698080] [2022-12-13 11:41:33,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:33,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:33,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:33,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:33,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59698080] [2022-12-13 11:41:33,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59698080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:33,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:33,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:33,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707645517] [2022-12-13 11:41:33,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:33,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:33,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:33,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:33,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:33,088 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:33,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:33,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:33,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:33,554 INFO L130 PetriNetUnfolder]: 1013/1566 cut-off events. [2022-12-13 11:41:33,554 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:33,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3193 conditions, 1566 events. 1013/1566 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 7472 event pairs, 1013 based on Foata normal form. 0/622 useless extension candidates. Maximal degree in co-relation 3183. Up to 1566 conditions per place. [2022-12-13 11:41:33,558 INFO L137 encePairwiseOnDemand]: 954/957 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2022-12-13 11:41:33,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 26 transitions, 116 flow [2022-12-13 11:41:33,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:33,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1198 transitions. [2022-12-13 11:41:33,560 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4172762103796587 [2022-12-13 11:41:33,560 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1198 transitions. [2022-12-13 11:41:33,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1198 transitions. [2022-12-13 11:41:33,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:33,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1198 transitions. [2022-12-13 11:41:33,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,566 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 68 flow. Second operand 3 states and 1198 transitions. [2022-12-13 11:41:33,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 26 transitions, 116 flow [2022-12-13 11:41:33,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 115 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:41:33,566 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 65 flow [2022-12-13 11:41:33,567 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2022-12-13 11:41:33,567 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -22 predicate places. [2022-12-13 11:41:33,567 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 65 flow [2022-12-13 11:41:33,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,568 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:33,568 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:41:33,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 11:41:33,568 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:33,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:33,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1747839, now seen corresponding path program 1 times [2022-12-13 11:41:33,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:33,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276086253] [2022-12-13 11:41:33,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:33,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:33,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:33,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:33,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276086253] [2022-12-13 11:41:33,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276086253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:33,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:33,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:33,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491876371] [2022-12-13 11:41:33,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:33,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:33,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:33,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:33,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:33,603 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:33,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:33,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:33,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:33,909 INFO L130 PetriNetUnfolder]: 681/1074 cut-off events. [2022-12-13 11:41:33,909 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:33,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2197 conditions, 1074 events. 681/1074 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 4785 event pairs, 681 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 2186. Up to 1074 conditions per place. [2022-12-13 11:41:33,912 INFO L137 encePairwiseOnDemand]: 954/957 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2022-12-13 11:41:33,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 24 transitions, 109 flow [2022-12-13 11:41:33,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:33,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:33,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1196 transitions. [2022-12-13 11:41:33,919 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4165795889933821 [2022-12-13 11:41:33,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1196 transitions. [2022-12-13 11:41:33,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1196 transitions. [2022-12-13 11:41:33,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:33,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1196 transitions. [2022-12-13 11:41:33,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 398.6666666666667) internal successors, (1196), 3 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,924 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,924 INFO L175 Difference]: Start difference. First operand has 38 places, 26 transitions, 65 flow. Second operand 3 states and 1196 transitions. [2022-12-13 11:41:33,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 24 transitions, 109 flow [2022-12-13 11:41:33,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 24 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:41:33,925 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 62 flow [2022-12-13 11:41:33,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2022-12-13 11:41:33,925 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -23 predicate places. [2022-12-13 11:41:33,925 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 62 flow [2022-12-13 11:41:33,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,925 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:33,926 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:41:33,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:41:33,926 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:33,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:33,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1747840, now seen corresponding path program 1 times [2022-12-13 11:41:33,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:33,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115593445] [2022-12-13 11:41:33,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:33,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:33,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:33,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115593445] [2022-12-13 11:41:33,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115593445] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:33,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:33,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:33,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801483285] [2022-12-13 11:41:33,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:33,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:33,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:33,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:33,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:33,973 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:33,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:33,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:33,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:33,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:34,207 INFO L130 PetriNetUnfolder]: 405/662 cut-off events. [2022-12-13 11:41:34,207 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:34,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1361 conditions, 662 events. 405/662 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2700 event pairs, 405 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 1349. Up to 662 conditions per place. [2022-12-13 11:41:34,209 INFO L137 encePairwiseOnDemand]: 954/957 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2022-12-13 11:41:34,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 22 transitions, 102 flow [2022-12-13 11:41:34,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:34,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:34,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1194 transitions. [2022-12-13 11:41:34,211 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4158829676071055 [2022-12-13 11:41:34,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1194 transitions. [2022-12-13 11:41:34,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1194 transitions. [2022-12-13 11:41:34,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:34,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1194 transitions. [2022-12-13 11:41:34,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 398.0) internal successors, (1194), 3 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,215 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,215 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 62 flow. Second operand 3 states and 1194 transitions. [2022-12-13 11:41:34,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 22 transitions, 102 flow [2022-12-13 11:41:34,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 22 transitions, 101 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:41:34,216 INFO L231 Difference]: Finished difference. Result has 36 places, 22 transitions, 59 flow [2022-12-13 11:41:34,216 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=36, PETRI_TRANSITIONS=22} [2022-12-13 11:41:34,216 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -24 predicate places. [2022-12-13 11:41:34,217 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 22 transitions, 59 flow [2022-12-13 11:41:34,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,217 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:34,217 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:41:34,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 11:41:34,217 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:34,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:34,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1679544341, now seen corresponding path program 1 times [2022-12-13 11:41:34,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:34,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025017998] [2022-12-13 11:41:34,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:34,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:34,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:34,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:34,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025017998] [2022-12-13 11:41:34,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025017998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:34,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:34,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:34,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775345071] [2022-12-13 11:41:34,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:34,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:34,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:34,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:34,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:34,258 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:34,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 22 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:34,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:34,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:34,448 INFO L130 PetriNetUnfolder]: 277/462 cut-off events. [2022-12-13 11:41:34,448 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:34,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 462 events. 277/462 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1734 event pairs, 277 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 945. Up to 462 conditions per place. [2022-12-13 11:41:34,449 INFO L137 encePairwiseOnDemand]: 954/957 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2022-12-13 11:41:34,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 20 transitions, 95 flow [2022-12-13 11:41:34,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:34,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:34,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1192 transitions. [2022-12-13 11:41:34,451 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.415186346220829 [2022-12-13 11:41:34,451 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1192 transitions. [2022-12-13 11:41:34,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1192 transitions. [2022-12-13 11:41:34,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:34,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1192 transitions. [2022-12-13 11:41:34,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 397.3333333333333) internal successors, (1192), 3 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,456 INFO L175 Difference]: Start difference. First operand has 36 places, 22 transitions, 59 flow. Second operand 3 states and 1192 transitions. [2022-12-13 11:41:34,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 20 transitions, 95 flow [2022-12-13 11:41:34,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 20 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:41:34,456 INFO L231 Difference]: Finished difference. Result has 35 places, 20 transitions, 56 flow [2022-12-13 11:41:34,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=35, PETRI_TRANSITIONS=20} [2022-12-13 11:41:34,457 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -25 predicate places. [2022-12-13 11:41:34,457 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 20 transitions, 56 flow [2022-12-13 11:41:34,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,457 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:34,457 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:41:34,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 11:41:34,458 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:34,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:34,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1679544369, now seen corresponding path program 1 times [2022-12-13 11:41:34,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:34,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026501059] [2022-12-13 11:41:34,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:34,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:34,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:34,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026501059] [2022-12-13 11:41:34,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026501059] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:34,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:34,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:34,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094200452] [2022-12-13 11:41:34,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:34,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:34,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:34,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:34,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:34,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:34,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 20 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:34,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:34,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:34,640 INFO L130 PetriNetUnfolder]: 173/298 cut-off events. [2022-12-13 11:41:34,641 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:34,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 298 events. 173/298 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 996 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 613. Up to 298 conditions per place. [2022-12-13 11:41:34,642 INFO L137 encePairwiseOnDemand]: 954/957 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2022-12-13 11:41:34,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 18 transitions, 88 flow [2022-12-13 11:41:34,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:34,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:34,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1190 transitions. [2022-12-13 11:41:34,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41448972483455243 [2022-12-13 11:41:34,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1190 transitions. [2022-12-13 11:41:34,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1190 transitions. [2022-12-13 11:41:34,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:34,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1190 transitions. [2022-12-13 11:41:34,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.6666666666667) internal successors, (1190), 3 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,648 INFO L175 Difference]: Start difference. First operand has 35 places, 20 transitions, 56 flow. Second operand 3 states and 1190 transitions. [2022-12-13 11:41:34,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 18 transitions, 88 flow [2022-12-13 11:41:34,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 18 transitions, 87 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:41:34,654 INFO L231 Difference]: Finished difference. Result has 34 places, 18 transitions, 53 flow [2022-12-13 11:41:34,654 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=34, PETRI_TRANSITIONS=18} [2022-12-13 11:41:34,654 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -26 predicate places. [2022-12-13 11:41:34,655 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 18 transitions, 53 flow [2022-12-13 11:41:34,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,655 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:34,655 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:41:34,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 11:41:34,655 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:34,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:34,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1679544368, now seen corresponding path program 1 times [2022-12-13 11:41:34,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:34,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700295785] [2022-12-13 11:41:34,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:34,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:34,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:34,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:34,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700295785] [2022-12-13 11:41:34,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700295785] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:34,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:34,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:34,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827254547] [2022-12-13 11:41:34,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:34,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:34,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:34,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:34,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:34,692 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:34,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 18 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:34,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:34,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:34,812 INFO L130 PetriNetUnfolder]: 93/170 cut-off events. [2022-12-13 11:41:34,812 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:34,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 170 events. 93/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 470 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 353. Up to 170 conditions per place. [2022-12-13 11:41:34,813 INFO L137 encePairwiseOnDemand]: 954/957 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2022-12-13 11:41:34,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 16 transitions, 81 flow [2022-12-13 11:41:34,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:34,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:34,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1188 transitions. [2022-12-13 11:41:34,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41379310344827586 [2022-12-13 11:41:34,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1188 transitions. [2022-12-13 11:41:34,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1188 transitions. [2022-12-13 11:41:34,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:34,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1188 transitions. [2022-12-13 11:41:34,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,820 INFO L175 Difference]: Start difference. First operand has 34 places, 18 transitions, 53 flow. Second operand 3 states and 1188 transitions. [2022-12-13 11:41:34,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 16 transitions, 81 flow [2022-12-13 11:41:34,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 16 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:41:34,820 INFO L231 Difference]: Finished difference. Result has 33 places, 16 transitions, 50 flow [2022-12-13 11:41:34,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2022-12-13 11:41:34,821 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -27 predicate places. [2022-12-13 11:41:34,821 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 50 flow [2022-12-13 11:41:34,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,821 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:41:34,821 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:41:34,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 11:41:34,821 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-12-13 11:41:34,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:34,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1679544367, now seen corresponding path program 1 times [2022-12-13 11:41:34,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:34,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66142766] [2022-12-13 11:41:34,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:34,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:34,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:34,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:34,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66142766] [2022-12-13 11:41:34,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66142766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:34,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:34,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:41:34,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474411445] [2022-12-13 11:41:34,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:34,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:34,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:34,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:34,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:34,886 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 957 [2022-12-13 11:41:34,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:41:34,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 957 [2022-12-13 11:41:34,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:41:34,964 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2022-12-13 11:41:34,964 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:41:34,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 78 events. 37/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 150 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 165. Up to 78 conditions per place. [2022-12-13 11:41:34,965 INFO L137 encePairwiseOnDemand]: 954/957 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2022-12-13 11:41:34,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 14 transitions, 74 flow [2022-12-13 11:41:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:41:34,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1186 transitions. [2022-12-13 11:41:34,968 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4130964820619993 [2022-12-13 11:41:34,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1186 transitions. [2022-12-13 11:41:34,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1186 transitions. [2022-12-13 11:41:34,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:41:34,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1186 transitions. [2022-12-13 11:41:34,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.3333333333333) internal successors, (1186), 3 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,972 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 957.0) internal successors, (3828), 4 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,972 INFO L175 Difference]: Start difference. First operand has 33 places, 16 transitions, 50 flow. Second operand 3 states and 1186 transitions. [2022-12-13 11:41:34,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 14 transitions, 74 flow [2022-12-13 11:41:34,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 14 transitions, 73 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:41:34,973 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2022-12-13 11:41:34,973 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2022-12-13 11:41:34,973 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -28 predicate places. [2022-12-13 11:41:34,973 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2022-12-13 11:41:34,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:34,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 75 remaining) [2022-12-13 11:41:34,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 75 remaining) [2022-12-13 11:41:34,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 75 remaining) [2022-12-13 11:41:34,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 75 remaining) [2022-12-13 11:41:34,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 75 remaining) [2022-12-13 11:41:34,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 75 remaining) [2022-12-13 11:41:34,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 75 remaining) [2022-12-13 11:41:34,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 75 remaining) [2022-12-13 11:41:34,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 75 remaining) [2022-12-13 11:41:34,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 75 remaining) [2022-12-13 11:41:34,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 75 remaining) [2022-12-13 11:41:34,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 11:41:34,980 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:34,984 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:41:34,984 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:41:34,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:41:34 BasicIcfg [2022-12-13 11:41:34,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:41:34,987 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:41:34,987 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:41:34,987 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:41:34,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:40:55" (3/4) ... [2022-12-13 11:41:34,989 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:41:34,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 11:41:34,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 11:41:34,994 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 11:41:34,997 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-12-13 11:41:34,997 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 11:41:34,997 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 11:41:34,997 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:41:35,020 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:41:35,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:41:35,021 INFO L158 Benchmark]: Toolchain (without parser) took 40269.24ms. Allocated memory was 144.7MB in the beginning and 956.3MB in the end (delta: 811.6MB). Free memory was 109.7MB in the beginning and 719.3MB in the end (delta: -609.7MB). Peak memory consumption was 204.0MB. Max. memory is 16.1GB. [2022-12-13 11:41:35,021 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 144.7MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:41:35,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.49ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 98.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 11:41:35,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.28ms. Allocated memory is still 144.7MB. Free memory was 97.8MB in the beginning and 95.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:41:35,022 INFO L158 Benchmark]: Boogie Preprocessor took 28.32ms. Allocated memory is still 144.7MB. Free memory was 95.3MB in the beginning and 93.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:41:35,022 INFO L158 Benchmark]: RCFGBuilder took 555.89ms. Allocated memory was 144.7MB in the beginning and 178.3MB in the end (delta: 33.6MB). Free memory was 93.6MB in the beginning and 148.1MB in the end (delta: -54.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 11:41:35,022 INFO L158 Benchmark]: TraceAbstraction took 39354.68ms. Allocated memory was 178.3MB in the beginning and 956.3MB in the end (delta: 778.0MB). Free memory was 147.4MB in the beginning and 723.5MB in the end (delta: -576.1MB). Peak memory consumption was 201.9MB. Max. memory is 16.1GB. [2022-12-13 11:41:35,022 INFO L158 Benchmark]: Witness Printer took 33.75ms. Allocated memory is still 956.3MB. Free memory was 722.5MB in the beginning and 719.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 11:41:35,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 144.7MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.49ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 98.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.28ms. Allocated memory is still 144.7MB. Free memory was 97.8MB in the beginning and 95.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.32ms. Allocated memory is still 144.7MB. Free memory was 95.3MB in the beginning and 93.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.89ms. Allocated memory was 144.7MB in the beginning and 178.3MB in the end (delta: 33.6MB). Free memory was 93.6MB in the beginning and 148.1MB in the end (delta: -54.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 39354.68ms. Allocated memory was 178.3MB in the beginning and 956.3MB in the end (delta: 778.0MB). Free memory was 147.4MB in the beginning and 723.5MB in the end (delta: -576.1MB). Peak memory consumption was 201.9MB. Max. memory is 16.1GB. * Witness Printer took 33.75ms. Allocated memory is still 956.3MB. Free memory was 722.5MB in the beginning and 719.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.9s, 374 PlacesBefore, 60 PlacesAfterwards, 388 TransitionsBefore, 50 TransitionsAfterwards, 71070 CoEnabledTransitionPairs, 10 FixpointIterations, 56 TrivialSequentialCompositions, 396 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 69 ConcurrentYvCompositions, 24 ChoiceCompositions, 545 TotalNumberOfCompositions, 67350 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67350, independent: 67350, independent conditional: 0, independent unconditional: 67350, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 40600, independent: 40600, independent conditional: 0, independent unconditional: 40600, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 67350, independent: 26750, independent conditional: 0, independent unconditional: 26750, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 40600, unknown conditional: 0, unknown unconditional: 40600] , Statistics on independence cache: Total cache size (in pairs): 159, Positive cache size: 159, Positive conditional cache size: 0, Positive unconditional cache size: 159, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 679 locations, 75 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 39.2s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 32.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 292 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 23 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 11:41:35,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2d415f-c015-4de5-92e1-de2e8ac53495/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE