./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 6b4ec56b 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_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 11:42:33,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:42:33,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:42:33,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:42:33,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:42:33,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:42:33,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:42:33,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:42:33,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:42:33,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:42:33,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:42:33,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:42:33,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:42:33,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:42:33,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:42:33,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:42:33,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:42:33,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:42:33,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:42:33,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:42:33,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:42:33,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:42:33,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:42:33,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:42:33,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:42:33,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:42:33,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:42:33,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:42:33,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:42:33,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:42:33,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:42:33,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:42:33,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:42:33,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:42:33,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:42:33,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:42:33,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:42:33,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:42:33,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:42:33,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:42:33,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:42:33,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:42:33,813 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:42:33,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:42:33,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:42:33,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:42:33,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:42:33,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:42:33,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:42:33,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:42:33,817 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:42:33,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:42:33,819 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:42:33,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:42:33,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:42:33,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:42:33,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:42:33,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:42:33,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:42:33,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:42:33,821 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:42:33,822 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:42:33,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:42:33,822 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:42:33,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:42:33,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:42:33,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:42:33,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:42:33,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:42:33,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:42:33,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:42:33,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:42:33,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:42:33,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:42:33,826 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:42:33,826 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:42:33,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:42:33,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff [2022-11-20 11:42:34,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:42:34,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:42:34,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:42:34,311 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:42:34,312 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:42:34,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-11-20 11:42:38,095 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:42:38,379 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:42:38,380 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-11-20 11:42:38,389 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/data/686a1dae9/776a82ee14984b459384e406e5412926/FLAGe77d4999e [2022-11-20 11:42:38,408 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/data/686a1dae9/776a82ee14984b459384e406e5412926 [2022-11-20 11:42:38,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:42:38,413 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:42:38,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:42:38,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:42:38,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:42:38,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38, skipping insertion in model container [2022-11-20 11:42:38,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:42:38,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:42:38,699 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_e9308f31-b444-4c48-a6c9-58afa9706173/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-11-20 11:42:38,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:42:38,718 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:42:38,753 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_e9308f31-b444-4c48-a6c9-58afa9706173/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-11-20 11:42:38,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:42:38,773 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:42:38,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38 WrapperNode [2022-11-20 11:42:38,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:42:38,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:42:38,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:42:38,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:42:38,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,859 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 286 [2022-11-20 11:42:38,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:42:38,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:42:38,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:42:38,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:42:38,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,896 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:42:38,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:42:38,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:42:38,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:42:38,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (1/1) ... [2022-11-20 11:42:38,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:42:38,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:42:38,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:42:38,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:42:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:42:39,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:42:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:42:39,042 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:42:39,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:42:39,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:42:39,047 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:42:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:42:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:42:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:42:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:42:39,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:42:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:42:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:42:39,051 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:42:39,185 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:42:39,187 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:42:40,101 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:42:40,119 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:42:40,132 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:42:40,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:42:40 BoogieIcfgContainer [2022-11-20 11:42:40,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:42:40,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:42:40,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:42:40,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:42:40,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:42:38" (1/3) ... [2022-11-20 11:42:40,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368b4aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:42:40, skipping insertion in model container [2022-11-20 11:42:40,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:42:38" (2/3) ... [2022-11-20 11:42:40,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368b4aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:42:40, skipping insertion in model container [2022-11-20 11:42:40,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:42:40" (3/3) ... [2022-11-20 11:42:40,157 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2022-11-20 11:42:40,199 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:42:40,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:42:40,214 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-20 11:42:40,215 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:42:40,425 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 11:42:40,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 397 places, 412 transitions, 848 flow [2022-11-20 11:42:40,886 INFO L130 PetriNetUnfolder]: 25/409 cut-off events. [2022-11-20 11:42:40,886 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:42:40,901 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 948 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. [2022-11-20 11:42:40,902 INFO L82 GeneralOperation]: Start removeDead. Operand has 397 places, 412 transitions, 848 flow [2022-11-20 11:42:40,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 388 transitions, 791 flow [2022-11-20 11:42:40,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:42:40,938 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;@1a7f81db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:42:40,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2022-11-20 11:42:40,955 INFO L130 PetriNetUnfolder]: 0/77 cut-off events. [2022-11-20 11:42:40,955 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:42:40,956 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:40,956 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:40,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:40,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:40,964 INFO L85 PathProgramCache]: Analyzing trace with hash 342507580, now seen corresponding path program 1 times [2022-11-20 11:42:40,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:40,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665983725] [2022-11-20 11:42:40,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:40,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:41,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:41,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:41,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665983725] [2022-11-20 11:42:41,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665983725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:41,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:41,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:42:41,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720959529] [2022-11-20 11:42:41,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:41,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:42:41,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:41,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:42:41,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:42:41,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:41,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 388 transitions, 791 flow. Second operand has 6 states, 6 states have (on average 347.8333333333333) internal successors, (2087), 6 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:41,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:41,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:41,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:42,530 INFO L130 PetriNetUnfolder]: 147/895 cut-off events. [2022-11-20 11:42:42,531 INFO L131 PetriNetUnfolder]: For 109/109 co-relation queries the response was YES. [2022-11-20 11:42:42,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1398 conditions, 895 events. 147/895 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5074 event pairs, 41 based on Foata normal form. 474/1239 useless extension candidates. Maximal degree in co-relation 1279. Up to 113 conditions per place. [2022-11-20 11:42:42,575 INFO L137 encePairwiseOnDemand]: 390/412 looper letters, 57 selfloop transitions, 9 changer transitions 0/391 dead transitions. [2022-11-20 11:42:42,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 391 transitions, 953 flow [2022-11-20 11:42:42,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:42:42,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:42:42,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2526 transitions. [2022-11-20 11:42:42,611 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.875866851595007 [2022-11-20 11:42:42,612 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2526 transitions. [2022-11-20 11:42:42,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2526 transitions. [2022-11-20 11:42:42,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:42,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2526 transitions. [2022-11-20 11:42:42,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 360.85714285714283) internal successors, (2526), 7 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:42,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:42,726 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:42,729 INFO L175 Difference]: Start difference. First operand has 374 places, 388 transitions, 791 flow. Second operand 7 states and 2526 transitions. [2022-11-20 11:42:42,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 391 transitions, 953 flow [2022-11-20 11:42:42,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 391 transitions, 931 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:42:42,755 INFO L231 Difference]: Finished difference. Result has 374 places, 375 transitions, 774 flow [2022-11-20 11:42:42,758 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=774, PETRI_PLACES=374, PETRI_TRANSITIONS=375} [2022-11-20 11:42:42,767 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 0 predicate places. [2022-11-20 11:42:42,768 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 375 transitions, 774 flow [2022-11-20 11:42:42,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 347.8333333333333) internal successors, (2087), 6 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:42,770 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:42,770 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:42,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:42:42,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:42,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:42,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2027801358, now seen corresponding path program 1 times [2022-11-20 11:42:42,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:42,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333423065] [2022-11-20 11:42:42,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:42,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:43,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:43,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:43,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333423065] [2022-11-20 11:42:43,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333423065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:43,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:43,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:42:43,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292689541] [2022-11-20 11:42:43,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:43,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:42:43,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:43,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:42:43,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:42:43,075 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:43,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 375 transitions, 774 flow. Second operand has 4 states, 4 states have (on average 347.75) internal successors, (1391), 4 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:43,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:43,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:43,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:43,723 INFO L130 PetriNetUnfolder]: 146/961 cut-off events. [2022-11-20 11:42:43,723 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-20 11:42:43,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1515 conditions, 961 events. 146/961 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6031 event pairs, 60 based on Foata normal form. 6/838 useless extension candidates. Maximal degree in co-relation 887. Up to 164 conditions per place. [2022-11-20 11:42:43,757 INFO L137 encePairwiseOnDemand]: 399/412 looper letters, 64 selfloop transitions, 9 changer transitions 0/398 dead transitions. [2022-11-20 11:42:43,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 398 transitions, 974 flow [2022-11-20 11:42:43,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:42:43,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:42:43,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1461 transitions. [2022-11-20 11:42:43,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8865291262135923 [2022-11-20 11:42:43,763 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1461 transitions. [2022-11-20 11:42:43,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1461 transitions. [2022-11-20 11:42:43,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:43,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1461 transitions. [2022-11-20 11:42:43,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 365.25) internal successors, (1461), 4 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:43,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:43,776 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:43,777 INFO L175 Difference]: Start difference. First operand has 374 places, 375 transitions, 774 flow. Second operand 4 states and 1461 transitions. [2022-11-20 11:42:43,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 398 transitions, 974 flow [2022-11-20 11:42:43,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 398 transitions, 956 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:42:43,794 INFO L231 Difference]: Finished difference. Result has 372 places, 378 transitions, 812 flow [2022-11-20 11:42:43,795 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=812, PETRI_PLACES=372, PETRI_TRANSITIONS=378} [2022-11-20 11:42:43,796 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, -2 predicate places. [2022-11-20 11:42:43,796 INFO L495 AbstractCegarLoop]: Abstraction has has 372 places, 378 transitions, 812 flow [2022-11-20 11:42:43,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 347.75) internal successors, (1391), 4 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:43,798 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:43,798 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:43,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:42:43,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:43,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:43,802 INFO L85 PathProgramCache]: Analyzing trace with hash 2138789822, now seen corresponding path program 1 times [2022-11-20 11:42:43,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:43,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198904391] [2022-11-20 11:42:43,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:43,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:44,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:44,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:44,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198904391] [2022-11-20 11:42:44,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198904391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:44,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:44,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:42:44,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263763630] [2022-11-20 11:42:44,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:44,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:42:44,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:44,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:42:44,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:42:44,064 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:44,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 378 transitions, 812 flow. Second operand has 6 states, 6 states have (on average 348.0) internal successors, (2088), 6 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:44,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:44,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:44,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:45,249 INFO L130 PetriNetUnfolder]: 437/2488 cut-off events. [2022-11-20 11:42:45,250 INFO L131 PetriNetUnfolder]: For 99/213 co-relation queries the response was YES. [2022-11-20 11:42:45,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3534 conditions, 2488 events. 437/2488 cut-off events. For 99/213 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 22821 event pairs, 39 based on Foata normal form. 3/1958 useless extension candidates. Maximal degree in co-relation 1792. Up to 271 conditions per place. [2022-11-20 11:42:45,336 INFO L137 encePairwiseOnDemand]: 402/412 looper letters, 56 selfloop transitions, 9 changer transitions 0/392 dead transitions. [2022-11-20 11:42:45,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 392 transitions, 980 flow [2022-11-20 11:42:45,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:42:45,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:42:45,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2488 transitions. [2022-11-20 11:42:45,344 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8626907073509015 [2022-11-20 11:42:45,346 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2488 transitions. [2022-11-20 11:42:45,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2488 transitions. [2022-11-20 11:42:45,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:45,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2488 transitions. [2022-11-20 11:42:45,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 355.42857142857144) internal successors, (2488), 7 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:45,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:45,366 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:45,366 INFO L175 Difference]: Start difference. First operand has 372 places, 378 transitions, 812 flow. Second operand 7 states and 2488 transitions. [2022-11-20 11:42:45,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 392 transitions, 980 flow [2022-11-20 11:42:45,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 392 transitions, 980 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:42:45,378 INFO L231 Difference]: Finished difference. Result has 377 places, 377 transitions, 828 flow [2022-11-20 11:42:45,379 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=828, PETRI_PLACES=377, PETRI_TRANSITIONS=377} [2022-11-20 11:42:45,382 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 3 predicate places. [2022-11-20 11:42:45,382 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 377 transitions, 828 flow [2022-11-20 11:42:45,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.0) internal successors, (2088), 6 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:45,384 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:45,385 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:45,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:42:45,386 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:45,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:45,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1877976115, now seen corresponding path program 1 times [2022-11-20 11:42:45,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:45,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519280007] [2022-11-20 11:42:45,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:45,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:45,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:45,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:45,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519280007] [2022-11-20 11:42:45,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519280007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:45,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:45,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:42:45,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416464573] [2022-11-20 11:42:45,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:45,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:42:45,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:45,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:42:45,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:42:45,610 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:45,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 377 transitions, 828 flow. Second operand has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:45,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:45,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:45,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:46,595 INFO L130 PetriNetUnfolder]: 214/1279 cut-off events. [2022-11-20 11:42:46,595 INFO L131 PetriNetUnfolder]: For 161/285 co-relation queries the response was YES. [2022-11-20 11:42:46,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1936 conditions, 1279 events. 214/1279 cut-off events. For 161/285 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10030 event pairs, 44 based on Foata normal form. 8/1020 useless extension candidates. Maximal degree in co-relation 1344. Up to 228 conditions per place. [2022-11-20 11:42:46,648 INFO L137 encePairwiseOnDemand]: 399/412 looper letters, 63 selfloop transitions, 9 changer transitions 0/399 dead transitions. [2022-11-20 11:42:46,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 399 transitions, 1023 flow [2022-11-20 11:42:46,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:42:46,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:42:46,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1460 transitions. [2022-11-20 11:42:46,653 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8859223300970874 [2022-11-20 11:42:46,654 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1460 transitions. [2022-11-20 11:42:46,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1460 transitions. [2022-11-20 11:42:46,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:46,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1460 transitions. [2022-11-20 11:42:46,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:46,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:46,671 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:46,672 INFO L175 Difference]: Start difference. First operand has 377 places, 377 transitions, 828 flow. Second operand 4 states and 1460 transitions. [2022-11-20 11:42:46,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 399 transitions, 1023 flow [2022-11-20 11:42:46,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 399 transitions, 1005 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:42:46,686 INFO L231 Difference]: Finished difference. Result has 375 places, 380 transitions, 866 flow [2022-11-20 11:42:46,687 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=866, PETRI_PLACES=375, PETRI_TRANSITIONS=380} [2022-11-20 11:42:46,694 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 1 predicate places. [2022-11-20 11:42:46,695 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 380 transitions, 866 flow [2022-11-20 11:42:46,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:46,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:46,696 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:46,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:42:46,697 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:46,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:46,698 INFO L85 PathProgramCache]: Analyzing trace with hash -820186251, now seen corresponding path program 1 times [2022-11-20 11:42:46,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:46,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475910211] [2022-11-20 11:42:46,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:46,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:46,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:46,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475910211] [2022-11-20 11:42:46,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475910211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:46,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:46,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:42:46,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87554539] [2022-11-20 11:42:46,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:46,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:42:46,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:46,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:42:46,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:42:46,823 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:46,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 380 transitions, 866 flow. Second operand has 4 states, 4 states have (on average 348.25) internal successors, (1393), 4 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:46,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:46,825 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:46,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:47,401 INFO L130 PetriNetUnfolder]: 132/944 cut-off events. [2022-11-20 11:42:47,402 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2022-11-20 11:42:47,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1518 conditions, 944 events. 132/944 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5921 event pairs, 48 based on Foata normal form. 6/834 useless extension candidates. Maximal degree in co-relation 1350. Up to 130 conditions per place. [2022-11-20 11:42:47,435 INFO L137 encePairwiseOnDemand]: 403/412 looper letters, 64 selfloop transitions, 7 changer transitions 0/398 dead transitions. [2022-11-20 11:42:47,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 398 transitions, 1044 flow [2022-11-20 11:42:47,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:42:47,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:42:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1457 transitions. [2022-11-20 11:42:47,440 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8841019417475728 [2022-11-20 11:42:47,441 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1457 transitions. [2022-11-20 11:42:47,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1457 transitions. [2022-11-20 11:42:47,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:47,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1457 transitions. [2022-11-20 11:42:47,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 364.25) internal successors, (1457), 4 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:47,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:47,454 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:47,454 INFO L175 Difference]: Start difference. First operand has 375 places, 380 transitions, 866 flow. Second operand 4 states and 1457 transitions. [2022-11-20 11:42:47,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 398 transitions, 1044 flow [2022-11-20 11:42:47,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 398 transitions, 1039 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:42:47,468 INFO L231 Difference]: Finished difference. Result has 377 places, 378 transitions, 863 flow [2022-11-20 11:42:47,469 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=863, PETRI_PLACES=377, PETRI_TRANSITIONS=378} [2022-11-20 11:42:47,473 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 3 predicate places. [2022-11-20 11:42:47,473 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 378 transitions, 863 flow [2022-11-20 11:42:47,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 348.25) internal successors, (1393), 4 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:47,475 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:47,475 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:47,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:42:47,475 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:47,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:47,477 INFO L85 PathProgramCache]: Analyzing trace with hash 344030982, now seen corresponding path program 1 times [2022-11-20 11:42:47,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:47,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121858445] [2022-11-20 11:42:47,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:47,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:47,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:47,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:47,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121858445] [2022-11-20 11:42:47,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121858445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:47,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:47,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:42:47,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507264334] [2022-11-20 11:42:47,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:47,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:42:47,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:47,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:42:47,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:42:47,630 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:47,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 378 transitions, 863 flow. Second operand has 6 states, 6 states have (on average 348.1666666666667) internal successors, (2089), 6 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:47,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:47,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:47,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:48,471 INFO L130 PetriNetUnfolder]: 185/1621 cut-off events. [2022-11-20 11:42:48,472 INFO L131 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2022-11-20 11:42:48,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2292 conditions, 1621 events. 185/1621 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 11504 event pairs, 49 based on Foata normal form. 0/1400 useless extension candidates. Maximal degree in co-relation 1956. Up to 180 conditions per place. [2022-11-20 11:42:48,530 INFO L137 encePairwiseOnDemand]: 402/412 looper letters, 47 selfloop transitions, 10 changer transitions 0/386 dead transitions. [2022-11-20 11:42:48,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 386 transitions, 1002 flow [2022-11-20 11:42:48,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:42:48,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:42:48,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2479 transitions. [2022-11-20 11:42:48,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8595700416088765 [2022-11-20 11:42:48,539 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2479 transitions. [2022-11-20 11:42:48,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2479 transitions. [2022-11-20 11:42:48,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:48,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2479 transitions. [2022-11-20 11:42:48,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 354.14285714285717) internal successors, (2479), 7 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:48,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:48,557 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:48,557 INFO L175 Difference]: Start difference. First operand has 377 places, 378 transitions, 863 flow. Second operand 7 states and 2479 transitions. [2022-11-20 11:42:48,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 386 transitions, 1002 flow [2022-11-20 11:42:48,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 386 transitions, 991 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:42:48,568 INFO L231 Difference]: Finished difference. Result has 380 places, 377 transitions, 870 flow [2022-11-20 11:42:48,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=870, PETRI_PLACES=380, PETRI_TRANSITIONS=377} [2022-11-20 11:42:48,572 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 6 predicate places. [2022-11-20 11:42:48,573 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 377 transitions, 870 flow [2022-11-20 11:42:48,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.1666666666667) internal successors, (2089), 6 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:48,594 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:48,595 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:48,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:42:48,595 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:48,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:48,596 INFO L85 PathProgramCache]: Analyzing trace with hash 776651785, now seen corresponding path program 1 times [2022-11-20 11:42:48,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:48,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968800710] [2022-11-20 11:42:48,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:48,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:48,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:48,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:48,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968800710] [2022-11-20 11:42:48,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968800710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:48,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:48,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:42:48,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186457455] [2022-11-20 11:42:48,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:48,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:42:48,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:48,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:42:48,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:42:48,757 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:48,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 377 transitions, 870 flow. Second operand has 4 states, 4 states have (on average 348.5) internal successors, (1394), 4 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:48,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:48,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:48,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:49,419 INFO L130 PetriNetUnfolder]: 163/1107 cut-off events. [2022-11-20 11:42:49,419 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2022-11-20 11:42:49,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1839 conditions, 1107 events. 163/1107 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7452 event pairs, 74 based on Foata normal form. 6/984 useless extension candidates. Maximal degree in co-relation 1663. Up to 201 conditions per place. [2022-11-20 11:42:49,467 INFO L137 encePairwiseOnDemand]: 403/412 looper letters, 60 selfloop transitions, 7 changer transitions 0/396 dead transitions. [2022-11-20 11:42:49,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 396 transitions, 1049 flow [2022-11-20 11:42:49,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:42:49,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:42:49,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1452 transitions. [2022-11-20 11:42:49,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8810679611650486 [2022-11-20 11:42:49,473 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1452 transitions. [2022-11-20 11:42:49,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1452 transitions. [2022-11-20 11:42:49,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:49,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1452 transitions. [2022-11-20 11:42:49,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 363.0) internal successors, (1452), 4 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:49,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:49,486 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:49,487 INFO L175 Difference]: Start difference. First operand has 380 places, 377 transitions, 870 flow. Second operand 4 states and 1452 transitions. [2022-11-20 11:42:49,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 396 transitions, 1049 flow [2022-11-20 11:42:49,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 396 transitions, 1024 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-20 11:42:49,500 INFO L231 Difference]: Finished difference. Result has 376 places, 378 transitions, 875 flow [2022-11-20 11:42:49,501 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=875, PETRI_PLACES=376, PETRI_TRANSITIONS=378} [2022-11-20 11:42:49,502 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 2 predicate places. [2022-11-20 11:42:49,502 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 378 transitions, 875 flow [2022-11-20 11:42:49,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 348.5) internal successors, (1394), 4 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:49,503 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:49,504 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:49,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:42:49,504 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:49,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:49,505 INFO L85 PathProgramCache]: Analyzing trace with hash -522274800, now seen corresponding path program 1 times [2022-11-20 11:42:49,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:49,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348367593] [2022-11-20 11:42:49,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:49,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:49,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:49,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348367593] [2022-11-20 11:42:49,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348367593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:49,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:49,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:42:49,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472574349] [2022-11-20 11:42:49,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:49,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:42:49,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:49,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:42:49,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:42:49,660 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:49,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 378 transitions, 875 flow. Second operand has 6 states, 6 states have (on average 348.1666666666667) internal successors, (2089), 6 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:49,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:49,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:49,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:51,121 INFO L130 PetriNetUnfolder]: 460/3038 cut-off events. [2022-11-20 11:42:51,122 INFO L131 PetriNetUnfolder]: For 435/435 co-relation queries the response was YES. [2022-11-20 11:42:51,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4212 conditions, 3038 events. 460/3038 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 28359 event pairs, 126 based on Foata normal form. 0/2426 useless extension candidates. Maximal degree in co-relation 3627. Up to 337 conditions per place. [2022-11-20 11:42:51,213 INFO L137 encePairwiseOnDemand]: 402/412 looper letters, 55 selfloop transitions, 9 changer transitions 0/391 dead transitions. [2022-11-20 11:42:51,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 391 transitions, 1035 flow [2022-11-20 11:42:51,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:42:51,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:42:51,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2487 transitions. [2022-11-20 11:42:51,221 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8623439667128987 [2022-11-20 11:42:51,221 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2487 transitions. [2022-11-20 11:42:51,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2487 transitions. [2022-11-20 11:42:51,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:51,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2487 transitions. [2022-11-20 11:42:51,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 355.2857142857143) internal successors, (2487), 7 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:51,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:51,237 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:51,238 INFO L175 Difference]: Start difference. First operand has 376 places, 378 transitions, 875 flow. Second operand 7 states and 2487 transitions. [2022-11-20 11:42:51,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 391 transitions, 1035 flow [2022-11-20 11:42:51,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 391 transitions, 1030 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:42:51,249 INFO L231 Difference]: Finished difference. Result has 380 places, 377 transitions, 886 flow [2022-11-20 11:42:51,250 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=886, PETRI_PLACES=380, PETRI_TRANSITIONS=377} [2022-11-20 11:42:51,251 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 6 predicate places. [2022-11-20 11:42:51,251 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 377 transitions, 886 flow [2022-11-20 11:42:51,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.1666666666667) internal successors, (2089), 6 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:51,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:51,253 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:51,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:42:51,253 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:51,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:51,254 INFO L85 PathProgramCache]: Analyzing trace with hash 989351560, now seen corresponding path program 1 times [2022-11-20 11:42:51,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:51,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157654476] [2022-11-20 11:42:51,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:51,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:51,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:51,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:51,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157654476] [2022-11-20 11:42:51,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157654476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:51,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:51,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:42:51,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346654010] [2022-11-20 11:42:51,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:51,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:42:51,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:51,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:42:51,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:42:51,349 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:51,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 377 transitions, 886 flow. Second operand has 4 states, 4 states have (on average 348.25) internal successors, (1393), 4 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:51,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:51,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:51,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:52,598 INFO L130 PetriNetUnfolder]: 614/2844 cut-off events. [2022-11-20 11:42:52,598 INFO L131 PetriNetUnfolder]: For 639/645 co-relation queries the response was YES. [2022-11-20 11:42:52,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4233 conditions, 2844 events. 614/2844 cut-off events. For 639/645 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 31597 event pairs, 270 based on Foata normal form. 20/2167 useless extension candidates. Maximal degree in co-relation 4143. Up to 603 conditions per place. [2022-11-20 11:42:52,665 INFO L137 encePairwiseOnDemand]: 399/412 looper letters, 62 selfloop transitions, 9 changer transitions 0/398 dead transitions. [2022-11-20 11:42:52,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 398 transitions, 1074 flow [2022-11-20 11:42:52,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:42:52,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:42:52,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1459 transitions. [2022-11-20 11:42:52,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8853155339805825 [2022-11-20 11:42:52,670 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1459 transitions. [2022-11-20 11:42:52,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1459 transitions. [2022-11-20 11:42:52,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:52,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1459 transitions. [2022-11-20 11:42:52,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 364.75) internal successors, (1459), 4 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:52,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:52,681 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:52,681 INFO L175 Difference]: Start difference. First operand has 380 places, 377 transitions, 886 flow. Second operand 4 states and 1459 transitions. [2022-11-20 11:42:52,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 398 transitions, 1074 flow [2022-11-20 11:42:52,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 398 transitions, 1056 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:42:52,692 INFO L231 Difference]: Finished difference. Result has 378 places, 380 transitions, 924 flow [2022-11-20 11:42:52,693 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=924, PETRI_PLACES=378, PETRI_TRANSITIONS=380} [2022-11-20 11:42:52,694 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 4 predicate places. [2022-11-20 11:42:52,694 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 380 transitions, 924 flow [2022-11-20 11:42:52,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 348.25) internal successors, (1393), 4 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:52,695 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:52,695 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:52,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:42:52,696 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:52,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:52,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1594080026, now seen corresponding path program 1 times [2022-11-20 11:42:52,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:52,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51856475] [2022-11-20 11:42:52,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:52,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:52,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:52,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:52,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51856475] [2022-11-20 11:42:52,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51856475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:52,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:52,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:42:52,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351035797] [2022-11-20 11:42:52,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:52,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:42:52,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:52,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:42:52,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:42:52,784 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:52,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 380 transitions, 924 flow. Second operand has 4 states, 4 states have (on average 348.5) internal successors, (1394), 4 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:52,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:52,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:52,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:53,705 INFO L130 PetriNetUnfolder]: 250/1491 cut-off events. [2022-11-20 11:42:53,705 INFO L131 PetriNetUnfolder]: For 322/496 co-relation queries the response was YES. [2022-11-20 11:42:53,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2328 conditions, 1491 events. 250/1491 cut-off events. For 322/496 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 12406 event pairs, 54 based on Foata normal form. 10/1183 useless extension candidates. Maximal degree in co-relation 2172. Up to 231 conditions per place. [2022-11-20 11:42:53,794 INFO L137 encePairwiseOnDemand]: 403/412 looper letters, 63 selfloop transitions, 7 changer transitions 0/397 dead transitions. [2022-11-20 11:42:53,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 397 transitions, 1097 flow [2022-11-20 11:42:53,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:42:53,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:42:53,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1456 transitions. [2022-11-20 11:42:53,800 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.883495145631068 [2022-11-20 11:42:53,800 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1456 transitions. [2022-11-20 11:42:53,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1456 transitions. [2022-11-20 11:42:53,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:53,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1456 transitions. [2022-11-20 11:42:53,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:53,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:53,810 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:53,811 INFO L175 Difference]: Start difference. First operand has 378 places, 380 transitions, 924 flow. Second operand 4 states and 1456 transitions. [2022-11-20 11:42:53,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 397 transitions, 1097 flow [2022-11-20 11:42:53,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 397 transitions, 1092 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:42:53,821 INFO L231 Difference]: Finished difference. Result has 380 places, 378 transitions, 921 flow [2022-11-20 11:42:53,823 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=921, PETRI_PLACES=380, PETRI_TRANSITIONS=378} [2022-11-20 11:42:53,824 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 6 predicate places. [2022-11-20 11:42:53,825 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 378 transitions, 921 flow [2022-11-20 11:42:53,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 348.5) internal successors, (1394), 4 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:53,826 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:53,826 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:53,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:42:53,827 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:53,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:53,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1694322091, now seen corresponding path program 1 times [2022-11-20 11:42:53,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:53,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430367058] [2022-11-20 11:42:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:53,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:54,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:54,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430367058] [2022-11-20 11:42:54,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430367058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:54,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:54,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:42:54,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762782161] [2022-11-20 11:42:54,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:54,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:42:54,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:54,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:42:54,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:42:54,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:42:54,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 378 transitions, 921 flow. Second operand has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:54,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:54,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:42:54,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:55,103 INFO L130 PetriNetUnfolder]: 259/1487 cut-off events. [2022-11-20 11:42:55,104 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-20 11:42:55,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2525 conditions, 1487 events. 259/1487 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10666 event pairs, 60 based on Foata normal form. 0/1345 useless extension candidates. Maximal degree in co-relation 2369. Up to 155 conditions per place. [2022-11-20 11:42:55,156 INFO L137 encePairwiseOnDemand]: 397/412 looper letters, 67 selfloop transitions, 16 changer transitions 0/402 dead transitions. [2022-11-20 11:42:55,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 402 transitions, 1156 flow [2022-11-20 11:42:55,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:42:55,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:42:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3778 transitions. [2022-11-20 11:42:55,169 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8336275375110327 [2022-11-20 11:42:55,170 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3778 transitions. [2022-11-20 11:42:55,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3778 transitions. [2022-11-20 11:42:55,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:55,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3778 transitions. [2022-11-20 11:42:55,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.45454545454544) internal successors, (3778), 11 states have internal predecessors, (3778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:55,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:55,200 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:55,200 INFO L175 Difference]: Start difference. First operand has 380 places, 378 transitions, 921 flow. Second operand 11 states and 3778 transitions. [2022-11-20 11:42:55,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 402 transitions, 1156 flow [2022-11-20 11:42:55,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 402 transitions, 1145 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:42:55,214 INFO L231 Difference]: Finished difference. Result has 390 places, 379 transitions, 955 flow [2022-11-20 11:42:55,215 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=955, PETRI_PLACES=390, PETRI_TRANSITIONS=379} [2022-11-20 11:42:55,216 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 16 predicate places. [2022-11-20 11:42:55,216 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 379 transitions, 955 flow [2022-11-20 11:42:55,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:55,218 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:55,218 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:55,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:42:55,219 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:55,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:55,219 INFO L85 PathProgramCache]: Analyzing trace with hash -2123125656, now seen corresponding path program 1 times [2022-11-20 11:42:55,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:55,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323459922] [2022-11-20 11:42:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:55,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:55,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:55,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:55,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323459922] [2022-11-20 11:42:55,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323459922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:55,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:55,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:42:55,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294985566] [2022-11-20 11:42:55,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:55,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:42:55,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:55,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:42:55,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:42:55,356 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:55,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 379 transitions, 955 flow. Second operand has 6 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:55,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:55,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:55,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:57,286 INFO L130 PetriNetUnfolder]: 710/4612 cut-off events. [2022-11-20 11:42:57,286 INFO L131 PetriNetUnfolder]: For 688/1287 co-relation queries the response was YES. [2022-11-20 11:42:57,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7375 conditions, 4612 events. 710/4612 cut-off events. For 688/1287 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 50049 event pairs, 82 based on Foata normal form. 5/3773 useless extension candidates. Maximal degree in co-relation 5777. Up to 558 conditions per place. [2022-11-20 11:42:57,426 INFO L137 encePairwiseOnDemand]: 402/412 looper letters, 47 selfloop transitions, 10 changer transitions 0/387 dead transitions. [2022-11-20 11:42:57,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 387 transitions, 1103 flow [2022-11-20 11:42:57,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:42:57,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:42:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2479 transitions. [2022-11-20 11:42:57,434 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8595700416088765 [2022-11-20 11:42:57,435 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2479 transitions. [2022-11-20 11:42:57,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2479 transitions. [2022-11-20 11:42:57,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:57,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2479 transitions. [2022-11-20 11:42:57,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 354.14285714285717) internal successors, (2479), 7 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:57,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:57,451 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:57,452 INFO L175 Difference]: Start difference. First operand has 390 places, 379 transitions, 955 flow. Second operand 7 states and 2479 transitions. [2022-11-20 11:42:57,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 387 transitions, 1103 flow [2022-11-20 11:42:57,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 387 transitions, 1073 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-11-20 11:42:57,465 INFO L231 Difference]: Finished difference. Result has 389 places, 378 transitions, 949 flow [2022-11-20 11:42:57,466 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=929, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=949, PETRI_PLACES=389, PETRI_TRANSITIONS=378} [2022-11-20 11:42:57,466 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 15 predicate places. [2022-11-20 11:42:57,467 INFO L495 AbstractCegarLoop]: Abstraction has has 389 places, 378 transitions, 949 flow [2022-11-20 11:42:57,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:57,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:57,468 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:57,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:42:57,469 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:57,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:57,469 INFO L85 PathProgramCache]: Analyzing trace with hash 984378268, now seen corresponding path program 1 times [2022-11-20 11:42:57,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:57,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804761152] [2022-11-20 11:42:57,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:57,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:57,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:57,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804761152] [2022-11-20 11:42:57,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804761152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:57,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:57,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:42:57,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116871354] [2022-11-20 11:42:57,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:57,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:42:57,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:57,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:42:57,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:42:57,656 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:42:57,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 378 transitions, 949 flow. Second operand has 8 states, 8 states have (on average 338.125) internal successors, (2705), 8 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:57,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:57,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:42:57,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:59,026 INFO L130 PetriNetUnfolder]: 250/2273 cut-off events. [2022-11-20 11:42:59,027 INFO L131 PetriNetUnfolder]: For 188/188 co-relation queries the response was YES. [2022-11-20 11:42:59,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3418 conditions, 2273 events. 250/2273 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 18575 event pairs, 53 based on Foata normal form. 0/2029 useless extension candidates. Maximal degree in co-relation 2921. Up to 155 conditions per place. [2022-11-20 11:42:59,075 INFO L137 encePairwiseOnDemand]: 396/412 looper letters, 69 selfloop transitions, 17 changer transitions 0/404 dead transitions. [2022-11-20 11:42:59,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 404 transitions, 1201 flow [2022-11-20 11:42:59,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:42:59,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:42:59,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3780 transitions. [2022-11-20 11:42:59,087 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8340688437775816 [2022-11-20 11:42:59,087 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3780 transitions. [2022-11-20 11:42:59,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3780 transitions. [2022-11-20 11:42:59,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:59,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3780 transitions. [2022-11-20 11:42:59,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.6363636363636) internal successors, (3780), 11 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:59,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:59,114 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:59,114 INFO L175 Difference]: Start difference. First operand has 389 places, 378 transitions, 949 flow. Second operand 11 states and 3780 transitions. [2022-11-20 11:42:59,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 404 transitions, 1201 flow [2022-11-20 11:42:59,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 404 transitions, 1181 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:42:59,126 INFO L231 Difference]: Finished difference. Result has 395 places, 379 transitions, 976 flow [2022-11-20 11:42:59,127 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=929, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=976, PETRI_PLACES=395, PETRI_TRANSITIONS=379} [2022-11-20 11:42:59,128 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 21 predicate places. [2022-11-20 11:42:59,128 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 379 transitions, 976 flow [2022-11-20 11:42:59,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 338.125) internal successors, (2705), 8 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:59,129 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:59,130 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:59,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:42:59,130 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:42:59,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:59,131 INFO L85 PathProgramCache]: Analyzing trace with hash 661073355, now seen corresponding path program 1 times [2022-11-20 11:42:59,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:59,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792049895] [2022-11-20 11:42:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:59,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:42:59,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:59,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792049895] [2022-11-20 11:42:59,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792049895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:59,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:59,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:42:59,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993871200] [2022-11-20 11:42:59,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:59,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:42:59,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:59,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:42:59,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:42:59,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:42:59,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 379 transitions, 976 flow. Second operand has 4 states, 4 states have (on average 348.75) internal successors, (1395), 4 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:59,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:59,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:42:59,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:00,253 INFO L130 PetriNetUnfolder]: 313/1758 cut-off events. [2022-11-20 11:43:00,254 INFO L131 PetriNetUnfolder]: For 324/546 co-relation queries the response was YES. [2022-11-20 11:43:00,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2822 conditions, 1758 events. 313/1758 cut-off events. For 324/546 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 15659 event pairs, 148 based on Foata normal form. 10/1394 useless extension candidates. Maximal degree in co-relation 2662. Up to 356 conditions per place. [2022-11-20 11:43:00,367 INFO L137 encePairwiseOnDemand]: 403/412 looper letters, 59 selfloop transitions, 7 changer transitions 0/397 dead transitions. [2022-11-20 11:43:00,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 397 transitions, 1150 flow [2022-11-20 11:43:00,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:43:00,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:43:00,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1451 transitions. [2022-11-20 11:43:00,373 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8804611650485437 [2022-11-20 11:43:00,373 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1451 transitions. [2022-11-20 11:43:00,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1451 transitions. [2022-11-20 11:43:00,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:00,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1451 transitions. [2022-11-20 11:43:00,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 362.75) internal successors, (1451), 4 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:00,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:00,393 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:00,393 INFO L175 Difference]: Start difference. First operand has 395 places, 379 transitions, 976 flow. Second operand 4 states and 1451 transitions. [2022-11-20 11:43:00,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 397 transitions, 1150 flow [2022-11-20 11:43:00,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 397 transitions, 1120 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-11-20 11:43:00,411 INFO L231 Difference]: Finished difference. Result has 391 places, 380 transitions, 976 flow [2022-11-20 11:43:00,412 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=976, PETRI_PLACES=391, PETRI_TRANSITIONS=380} [2022-11-20 11:43:00,413 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 17 predicate places. [2022-11-20 11:43:00,414 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 380 transitions, 976 flow [2022-11-20 11:43:00,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 348.75) internal successors, (1395), 4 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:00,415 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:00,415 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:00,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:43:00,415 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:00,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:00,416 INFO L85 PathProgramCache]: Analyzing trace with hash 867689856, now seen corresponding path program 1 times [2022-11-20 11:43:00,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:00,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756957983] [2022-11-20 11:43:00,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:00,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:00,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:00,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756957983] [2022-11-20 11:43:00,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756957983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:00,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:00,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:00,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780598348] [2022-11-20 11:43:00,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:00,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:00,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:00,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:00,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:00,608 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 412 [2022-11-20 11:43:00,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 380 transitions, 976 flow. Second operand has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:00,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:00,611 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 412 [2022-11-20 11:43:00,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:01,520 INFO L130 PetriNetUnfolder]: 241/1280 cut-off events. [2022-11-20 11:43:01,520 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2022-11-20 11:43:01,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2509 conditions, 1280 events. 241/1280 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 9242 event pairs, 122 based on Foata normal form. 3/1175 useless extension candidates. Maximal degree in co-relation 2347. Up to 315 conditions per place. [2022-11-20 11:43:01,588 INFO L137 encePairwiseOnDemand]: 395/412 looper letters, 74 selfloop transitions, 17 changer transitions 0/400 dead transitions. [2022-11-20 11:43:01,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 400 transitions, 1212 flow [2022-11-20 11:43:01,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:43:01,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:43:01,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2372 transitions. [2022-11-20 11:43:01,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8224687933425797 [2022-11-20 11:43:01,596 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2372 transitions. [2022-11-20 11:43:01,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2372 transitions. [2022-11-20 11:43:01,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:01,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2372 transitions. [2022-11-20 11:43:01,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 338.85714285714283) internal successors, (2372), 7 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:01,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:01,614 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:01,614 INFO L175 Difference]: Start difference. First operand has 391 places, 380 transitions, 976 flow. Second operand 7 states and 2372 transitions. [2022-11-20 11:43:01,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 400 transitions, 1212 flow [2022-11-20 11:43:01,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 400 transitions, 1204 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:43:01,625 INFO L231 Difference]: Finished difference. Result has 399 places, 388 transitions, 1067 flow [2022-11-20 11:43:01,627 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=964, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1067, PETRI_PLACES=399, PETRI_TRANSITIONS=388} [2022-11-20 11:43:01,629 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 25 predicate places. [2022-11-20 11:43:01,629 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 388 transitions, 1067 flow [2022-11-20 11:43:01,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.3333333333333) internal successors, (1976), 6 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:01,630 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:01,630 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:01,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:43:01,631 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:01,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:01,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1855612976, now seen corresponding path program 1 times [2022-11-20 11:43:01,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:01,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176349072] [2022-11-20 11:43:01,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:01,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:01,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:01,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176349072] [2022-11-20 11:43:01,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176349072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:01,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:01,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:01,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050018564] [2022-11-20 11:43:01,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:01,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:01,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:01,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:01,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:01,824 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 412 [2022-11-20 11:43:01,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 388 transitions, 1067 flow. Second operand has 6 states, 6 states have (on average 329.5) internal successors, (1977), 6 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:01,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:01,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 412 [2022-11-20 11:43:01,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:02,801 INFO L130 PetriNetUnfolder]: 225/1258 cut-off events. [2022-11-20 11:43:02,801 INFO L131 PetriNetUnfolder]: For 325/325 co-relation queries the response was YES. [2022-11-20 11:43:02,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2610 conditions, 1258 events. 225/1258 cut-off events. For 325/325 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9008 event pairs, 102 based on Foata normal form. 3/1192 useless extension candidates. Maximal degree in co-relation 2445. Up to 265 conditions per place. [2022-11-20 11:43:02,874 INFO L137 encePairwiseOnDemand]: 394/412 looper letters, 94 selfloop transitions, 20 changer transitions 0/423 dead transitions. [2022-11-20 11:43:02,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 423 transitions, 1424 flow [2022-11-20 11:43:02,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:43:02,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:43:02,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2386 transitions. [2022-11-20 11:43:02,881 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8273231622746186 [2022-11-20 11:43:02,881 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2386 transitions. [2022-11-20 11:43:02,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2386 transitions. [2022-11-20 11:43:02,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:02,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2386 transitions. [2022-11-20 11:43:02,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 340.85714285714283) internal successors, (2386), 7 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:02,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:02,897 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:02,899 INFO L175 Difference]: Start difference. First operand has 399 places, 388 transitions, 1067 flow. Second operand 7 states and 2386 transitions. [2022-11-20 11:43:02,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 423 transitions, 1424 flow [2022-11-20 11:43:02,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 423 transitions, 1412 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:43:02,913 INFO L231 Difference]: Finished difference. Result has 407 places, 399 transitions, 1193 flow [2022-11-20 11:43:02,914 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1053, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1193, PETRI_PLACES=407, PETRI_TRANSITIONS=399} [2022-11-20 11:43:02,914 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 33 predicate places. [2022-11-20 11:43:02,918 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 399 transitions, 1193 flow [2022-11-20 11:43:02,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.5) internal successors, (1977), 6 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:02,920 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:02,920 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:02,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:43:02,921 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:02,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:02,922 INFO L85 PathProgramCache]: Analyzing trace with hash 408232943, now seen corresponding path program 1 times [2022-11-20 11:43:02,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:02,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326866530] [2022-11-20 11:43:02,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:02,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:03,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:03,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:03,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326866530] [2022-11-20 11:43:03,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326866530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:03,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:03,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:43:03,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247650240] [2022-11-20 11:43:03,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:03,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:43:03,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:03,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:43:03,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:43:03,035 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:43:03,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 399 transitions, 1193 flow. Second operand has 4 states, 4 states have (on average 348.75) internal successors, (1395), 4 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:03,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:03,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:43:03,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:04,735 INFO L130 PetriNetUnfolder]: 727/3244 cut-off events. [2022-11-20 11:43:04,736 INFO L131 PetriNetUnfolder]: For 1116/1122 co-relation queries the response was YES. [2022-11-20 11:43:04,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5243 conditions, 3244 events. 727/3244 cut-off events. For 1116/1122 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 37502 event pairs, 288 based on Foata normal form. 26/2442 useless extension candidates. Maximal degree in co-relation 5141. Up to 629 conditions per place. [2022-11-20 11:43:04,810 INFO L137 encePairwiseOnDemand]: 403/412 looper letters, 62 selfloop transitions, 7 changer transitions 0/415 dead transitions. [2022-11-20 11:43:04,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 415 transitions, 1359 flow [2022-11-20 11:43:04,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:43:04,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:43:04,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1455 transitions. [2022-11-20 11:43:04,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8828883495145631 [2022-11-20 11:43:04,816 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1455 transitions. [2022-11-20 11:43:04,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1455 transitions. [2022-11-20 11:43:04,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:04,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1455 transitions. [2022-11-20 11:43:04,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 363.75) internal successors, (1455), 4 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:04,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:04,828 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:04,829 INFO L175 Difference]: Start difference. First operand has 407 places, 399 transitions, 1193 flow. Second operand 4 states and 1455 transitions. [2022-11-20 11:43:04,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 415 transitions, 1359 flow [2022-11-20 11:43:04,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 415 transitions, 1346 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:43:04,846 INFO L231 Difference]: Finished difference. Result has 408 places, 397 transitions, 1182 flow [2022-11-20 11:43:04,847 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1168, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1182, PETRI_PLACES=408, PETRI_TRANSITIONS=397} [2022-11-20 11:43:04,847 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 34 predicate places. [2022-11-20 11:43:04,848 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 397 transitions, 1182 flow [2022-11-20 11:43:04,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 348.75) internal successors, (1395), 4 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:04,849 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:04,849 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:04,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:43:04,849 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:04,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:04,850 INFO L85 PathProgramCache]: Analyzing trace with hash -229679462, now seen corresponding path program 1 times [2022-11-20 11:43:04,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:04,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961760994] [2022-11-20 11:43:04,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:04,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:04,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:04,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:04,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961760994] [2022-11-20 11:43:04,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961760994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:04,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:04,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:04,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312410012] [2022-11-20 11:43:04,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:04,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:04,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:04,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:04,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:04,980 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:43:04,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 397 transitions, 1182 flow. Second operand has 6 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:04,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:04,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:43:04,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:07,232 INFO L130 PetriNetUnfolder]: 676/4093 cut-off events. [2022-11-20 11:43:07,232 INFO L131 PetriNetUnfolder]: For 1243/1243 co-relation queries the response was YES. [2022-11-20 11:43:07,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6691 conditions, 4093 events. 676/4093 cut-off events. For 1243/1243 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 42905 event pairs, 215 based on Foata normal form. 0/3371 useless extension candidates. Maximal degree in co-relation 5843. Up to 636 conditions per place. [2022-11-20 11:43:07,395 INFO L137 encePairwiseOnDemand]: 402/412 looper letters, 47 selfloop transitions, 10 changer transitions 0/405 dead transitions. [2022-11-20 11:43:07,395 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 405 transitions, 1318 flow [2022-11-20 11:43:07,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:43:07,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:43:07,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2479 transitions. [2022-11-20 11:43:07,400 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8595700416088765 [2022-11-20 11:43:07,401 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2479 transitions. [2022-11-20 11:43:07,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2479 transitions. [2022-11-20 11:43:07,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:07,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2479 transitions. [2022-11-20 11:43:07,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 354.14285714285717) internal successors, (2479), 7 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:07,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:07,415 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:07,416 INFO L175 Difference]: Start difference. First operand has 408 places, 397 transitions, 1182 flow. Second operand 7 states and 2479 transitions. [2022-11-20 11:43:07,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 405 transitions, 1318 flow [2022-11-20 11:43:07,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 405 transitions, 1307 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:43:07,434 INFO L231 Difference]: Finished difference. Result has 411 places, 396 transitions, 1189 flow [2022-11-20 11:43:07,435 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1169, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1189, PETRI_PLACES=411, PETRI_TRANSITIONS=396} [2022-11-20 11:43:07,436 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 37 predicate places. [2022-11-20 11:43:07,436 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 396 transitions, 1189 flow [2022-11-20 11:43:07,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:07,437 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:07,437 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:07,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:43:07,438 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:07,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:07,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1117481005, now seen corresponding path program 1 times [2022-11-20 11:43:07,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:07,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056847890] [2022-11-20 11:43:07,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:07,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:07,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:07,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:07,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056847890] [2022-11-20 11:43:07,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056847890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:07,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:07,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:43:07,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062595076] [2022-11-20 11:43:07,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:07,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:43:07,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:07,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:43:07,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:43:07,608 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:43:07,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 396 transitions, 1189 flow. Second operand has 8 states, 8 states have (on average 338.125) internal successors, (2705), 8 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:07,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:07,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:43:07,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:09,539 INFO L130 PetriNetUnfolder]: 1056/4174 cut-off events. [2022-11-20 11:43:09,539 INFO L131 PetriNetUnfolder]: For 624/729 co-relation queries the response was YES. [2022-11-20 11:43:09,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7461 conditions, 4174 events. 1056/4174 cut-off events. For 624/729 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 47019 event pairs, 266 based on Foata normal form. 0/3332 useless extension candidates. Maximal degree in co-relation 6872. Up to 526 conditions per place. [2022-11-20 11:43:09,683 INFO L137 encePairwiseOnDemand]: 397/412 looper letters, 67 selfloop transitions, 16 changer transitions 0/420 dead transitions. [2022-11-20 11:43:09,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 420 transitions, 1424 flow [2022-11-20 11:43:09,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:43:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:43:09,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3778 transitions. [2022-11-20 11:43:09,689 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8336275375110327 [2022-11-20 11:43:09,690 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3778 transitions. [2022-11-20 11:43:09,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3778 transitions. [2022-11-20 11:43:09,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:09,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3778 transitions. [2022-11-20 11:43:09,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.45454545454544) internal successors, (3778), 11 states have internal predecessors, (3778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:09,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:09,709 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:09,709 INFO L175 Difference]: Start difference. First operand has 411 places, 396 transitions, 1189 flow. Second operand 11 states and 3778 transitions. [2022-11-20 11:43:09,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 420 transitions, 1424 flow [2022-11-20 11:43:09,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 420 transitions, 1404 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:43:09,725 INFO L231 Difference]: Finished difference. Result has 417 places, 397 transitions, 1214 flow [2022-11-20 11:43:09,726 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1169, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1214, PETRI_PLACES=417, PETRI_TRANSITIONS=397} [2022-11-20 11:43:09,727 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 43 predicate places. [2022-11-20 11:43:09,727 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 397 transitions, 1214 flow [2022-11-20 11:43:09,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 338.125) internal successors, (2705), 8 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:09,728 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:09,728 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:09,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:43:09,729 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:09,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:09,729 INFO L85 PathProgramCache]: Analyzing trace with hash 282173889, now seen corresponding path program 1 times [2022-11-20 11:43:09,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:09,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259317377] [2022-11-20 11:43:09,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:09,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:09,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:09,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:09,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259317377] [2022-11-20 11:43:09,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259317377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:09,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:09,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:43:09,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779430369] [2022-11-20 11:43:09,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:09,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:43:09,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:09,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:43:09,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:43:09,900 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:43:09,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 397 transitions, 1214 flow. Second operand has 8 states, 8 states have (on average 338.25) internal successors, (2706), 8 states have internal predecessors, (2706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:09,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:09,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:43:09,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:12,021 INFO L130 PetriNetUnfolder]: 959/5848 cut-off events. [2022-11-20 11:43:12,021 INFO L131 PetriNetUnfolder]: For 1221/1353 co-relation queries the response was YES. [2022-11-20 11:43:12,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9905 conditions, 5848 events. 959/5848 cut-off events. For 1221/1353 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 69177 event pairs, 205 based on Foata normal form. 0/4960 useless extension candidates. Maximal degree in co-relation 8382. Up to 526 conditions per place. [2022-11-20 11:43:12,172 INFO L137 encePairwiseOnDemand]: 396/412 looper letters, 69 selfloop transitions, 17 changer transitions 0/423 dead transitions. [2022-11-20 11:43:12,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 423 transitions, 1466 flow [2022-11-20 11:43:12,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:43:12,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:43:12,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3780 transitions. [2022-11-20 11:43:12,176 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8340688437775816 [2022-11-20 11:43:12,176 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3780 transitions. [2022-11-20 11:43:12,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3780 transitions. [2022-11-20 11:43:12,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:12,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3780 transitions. [2022-11-20 11:43:12,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.6363636363636) internal successors, (3780), 11 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:12,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:12,193 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:12,193 INFO L175 Difference]: Start difference. First operand has 417 places, 397 transitions, 1214 flow. Second operand 11 states and 3780 transitions. [2022-11-20 11:43:12,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 423 transitions, 1466 flow [2022-11-20 11:43:12,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 423 transitions, 1442 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-11-20 11:43:12,214 INFO L231 Difference]: Finished difference. Result has 423 places, 398 transitions, 1237 flow [2022-11-20 11:43:12,215 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1190, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1237, PETRI_PLACES=423, PETRI_TRANSITIONS=398} [2022-11-20 11:43:12,215 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 49 predicate places. [2022-11-20 11:43:12,216 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 398 transitions, 1237 flow [2022-11-20 11:43:12,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 338.25) internal successors, (2706), 8 states have internal predecessors, (2706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:12,217 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:12,217 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:12,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:43:12,217 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:12,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:12,218 INFO L85 PathProgramCache]: Analyzing trace with hash -803264419, now seen corresponding path program 1 times [2022-11-20 11:43:12,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:12,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699850986] [2022-11-20 11:43:12,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:12,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:12,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:12,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:12,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699850986] [2022-11-20 11:43:12,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699850986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:12,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:12,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:43:12,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815953063] [2022-11-20 11:43:12,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:12,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:43:12,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:12,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:43:12,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:43:12,316 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:43:12,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 398 transitions, 1237 flow. Second operand has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:12,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:12,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:43:12,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:14,047 INFO L130 PetriNetUnfolder]: 918/4207 cut-off events. [2022-11-20 11:43:14,048 INFO L131 PetriNetUnfolder]: For 1208/1214 co-relation queries the response was YES. [2022-11-20 11:43:14,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6592 conditions, 4207 events. 918/4207 cut-off events. For 1208/1214 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 49469 event pairs, 651 based on Foata normal form. 26/3204 useless extension candidates. Maximal degree in co-relation 6483. Up to 967 conditions per place. [2022-11-20 11:43:14,130 INFO L137 encePairwiseOnDemand]: 403/412 looper letters, 58 selfloop transitions, 7 changer transitions 0/415 dead transitions. [2022-11-20 11:43:14,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 415 transitions, 1404 flow [2022-11-20 11:43:14,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:43:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:43:14,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1450 transitions. [2022-11-20 11:43:14,137 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8798543689320388 [2022-11-20 11:43:14,137 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1450 transitions. [2022-11-20 11:43:14,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1450 transitions. [2022-11-20 11:43:14,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:14,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1450 transitions. [2022-11-20 11:43:14,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 362.5) internal successors, (1450), 4 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:14,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:14,148 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 412.0) internal successors, (2060), 5 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:14,148 INFO L175 Difference]: Start difference. First operand has 423 places, 398 transitions, 1237 flow. Second operand 4 states and 1450 transitions. [2022-11-20 11:43:14,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 415 transitions, 1404 flow [2022-11-20 11:43:14,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 415 transitions, 1374 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-11-20 11:43:14,168 INFO L231 Difference]: Finished difference. Result has 419 places, 399 transitions, 1237 flow [2022-11-20 11:43:14,168 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1199, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1237, PETRI_PLACES=419, PETRI_TRANSITIONS=399} [2022-11-20 11:43:14,169 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 45 predicate places. [2022-11-20 11:43:14,169 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 399 transitions, 1237 flow [2022-11-20 11:43:14,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:14,170 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:14,170 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:14,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:43:14,171 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:14,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:14,171 INFO L85 PathProgramCache]: Analyzing trace with hash 359150405, now seen corresponding path program 1 times [2022-11-20 11:43:14,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:14,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598869797] [2022-11-20 11:43:14,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:14,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:14,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:14,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:14,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598869797] [2022-11-20 11:43:14,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598869797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:14,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:14,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:14,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062778654] [2022-11-20 11:43:14,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:14,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:14,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:14,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:14,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:14,337 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 412 [2022-11-20 11:43:14,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 399 transitions, 1237 flow. Second operand has 6 states, 6 states have (on average 329.5) internal successors, (1977), 6 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:14,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:14,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 412 [2022-11-20 11:43:14,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:15,664 INFO L130 PetriNetUnfolder]: 470/1922 cut-off events. [2022-11-20 11:43:15,665 INFO L131 PetriNetUnfolder]: For 643/985 co-relation queries the response was YES. [2022-11-20 11:43:15,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3797 conditions, 1922 events. 470/1922 cut-off events. For 643/985 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 18768 event pairs, 244 based on Foata normal form. 5/1513 useless extension candidates. Maximal degree in co-relation 3611. Up to 566 conditions per place. [2022-11-20 11:43:15,770 INFO L137 encePairwiseOnDemand]: 395/412 looper letters, 74 selfloop transitions, 17 changer transitions 0/419 dead transitions. [2022-11-20 11:43:15,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 419 transitions, 1473 flow [2022-11-20 11:43:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:43:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:43:15,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2372 transitions. [2022-11-20 11:43:15,774 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8224687933425797 [2022-11-20 11:43:15,774 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2372 transitions. [2022-11-20 11:43:15,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2372 transitions. [2022-11-20 11:43:15,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:15,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2372 transitions. [2022-11-20 11:43:15,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 338.85714285714283) internal successors, (2372), 7 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:15,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:15,781 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:15,781 INFO L175 Difference]: Start difference. First operand has 419 places, 399 transitions, 1237 flow. Second operand 7 states and 2372 transitions. [2022-11-20 11:43:15,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 419 transitions, 1473 flow [2022-11-20 11:43:15,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 419 transitions, 1465 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:43:15,796 INFO L231 Difference]: Finished difference. Result has 427 places, 407 transitions, 1328 flow [2022-11-20 11:43:15,797 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1225, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1328, PETRI_PLACES=427, PETRI_TRANSITIONS=407} [2022-11-20 11:43:15,797 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 53 predicate places. [2022-11-20 11:43:15,798 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 407 transitions, 1328 flow [2022-11-20 11:43:15,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.5) internal successors, (1977), 6 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:15,799 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:15,799 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:15,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:43:15,799 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:15,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:15,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1024208014, now seen corresponding path program 1 times [2022-11-20 11:43:15,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:15,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066496256] [2022-11-20 11:43:15,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:15,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:15,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:15,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:15,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066496256] [2022-11-20 11:43:15,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066496256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:15,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:15,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:15,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490251544] [2022-11-20 11:43:15,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:15,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:15,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:15,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:15,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:15,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 412 [2022-11-20 11:43:15,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 407 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 329.6666666666667) internal successors, (1978), 6 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:15,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:15,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 412 [2022-11-20 11:43:15,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:17,284 INFO L130 PetriNetUnfolder]: 438/1892 cut-off events. [2022-11-20 11:43:17,284 INFO L131 PetriNetUnfolder]: For 925/1244 co-relation queries the response was YES. [2022-11-20 11:43:17,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3992 conditions, 1892 events. 438/1892 cut-off events. For 925/1244 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 18178 event pairs, 225 based on Foata normal form. 5/1568 useless extension candidates. Maximal degree in co-relation 3806. Up to 476 conditions per place. [2022-11-20 11:43:17,374 INFO L137 encePairwiseOnDemand]: 394/412 looper letters, 94 selfloop transitions, 20 changer transitions 0/442 dead transitions. [2022-11-20 11:43:17,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 442 transitions, 1685 flow [2022-11-20 11:43:17,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:43:17,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:43:17,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2386 transitions. [2022-11-20 11:43:17,378 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8273231622746186 [2022-11-20 11:43:17,378 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2386 transitions. [2022-11-20 11:43:17,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2386 transitions. [2022-11-20 11:43:17,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:17,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2386 transitions. [2022-11-20 11:43:17,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 340.85714285714283) internal successors, (2386), 7 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:17,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:17,389 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:17,389 INFO L175 Difference]: Start difference. First operand has 427 places, 407 transitions, 1328 flow. Second operand 7 states and 2386 transitions. [2022-11-20 11:43:17,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 442 transitions, 1685 flow [2022-11-20 11:43:17,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 442 transitions, 1673 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:43:17,407 INFO L231 Difference]: Finished difference. Result has 435 places, 418 transitions, 1454 flow [2022-11-20 11:43:17,408 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1314, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1454, PETRI_PLACES=435, PETRI_TRANSITIONS=418} [2022-11-20 11:43:17,409 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 61 predicate places. [2022-11-20 11:43:17,409 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 418 transitions, 1454 flow [2022-11-20 11:43:17,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.6666666666667) internal successors, (1978), 6 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:17,410 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:17,410 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:17,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 11:43:17,410 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:17,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:17,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2097140865, now seen corresponding path program 1 times [2022-11-20 11:43:17,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:17,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130261566] [2022-11-20 11:43:17,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:17,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:17,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:17,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:17,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130261566] [2022-11-20 11:43:17,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130261566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:17,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:17,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:43:17,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966714278] [2022-11-20 11:43:17,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:17,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:43:17,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:17,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:43:17,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:43:17,576 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:43:17,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 418 transitions, 1454 flow. Second operand has 8 states, 8 states have (on average 338.25) internal successors, (2706), 8 states have internal predecessors, (2706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:17,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:17,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:43:17,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:20,084 INFO L130 PetriNetUnfolder]: 1054/5033 cut-off events. [2022-11-20 11:43:20,084 INFO L131 PetriNetUnfolder]: For 1791/1791 co-relation queries the response was YES. [2022-11-20 11:43:20,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8587 conditions, 5033 events. 1054/5033 cut-off events. For 1791/1791 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 56368 event pairs, 469 based on Foata normal form. 0/4041 useless extension candidates. Maximal degree in co-relation 7931. Up to 711 conditions per place. [2022-11-20 11:43:20,192 INFO L137 encePairwiseOnDemand]: 397/412 looper letters, 67 selfloop transitions, 16 changer transitions 0/442 dead transitions. [2022-11-20 11:43:20,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 442 transitions, 1682 flow [2022-11-20 11:43:20,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:43:20,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:43:20,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3778 transitions. [2022-11-20 11:43:20,207 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8336275375110327 [2022-11-20 11:43:20,207 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3778 transitions. [2022-11-20 11:43:20,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3778 transitions. [2022-11-20 11:43:20,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:20,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3778 transitions. [2022-11-20 11:43:20,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.45454545454544) internal successors, (3778), 11 states have internal predecessors, (3778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:20,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:20,228 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:20,228 INFO L175 Difference]: Start difference. First operand has 435 places, 418 transitions, 1454 flow. Second operand 11 states and 3778 transitions. [2022-11-20 11:43:20,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 442 transitions, 1682 flow [2022-11-20 11:43:20,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 442 transitions, 1674 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:43:20,253 INFO L231 Difference]: Finished difference. Result has 446 places, 419 transitions, 1491 flow [2022-11-20 11:43:20,254 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1446, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1491, PETRI_PLACES=446, PETRI_TRANSITIONS=419} [2022-11-20 11:43:20,254 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 72 predicate places. [2022-11-20 11:43:20,255 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 419 transitions, 1491 flow [2022-11-20 11:43:20,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 338.25) internal successors, (2706), 8 states have internal predecessors, (2706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:20,256 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:20,256 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:20,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 11:43:20,256 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:20,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:20,257 INFO L85 PathProgramCache]: Analyzing trace with hash -586856170, now seen corresponding path program 1 times [2022-11-20 11:43:20,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:20,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860281433] [2022-11-20 11:43:20,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:20,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:20,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:20,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:20,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860281433] [2022-11-20 11:43:20,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860281433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:20,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:20,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:43:20,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410801587] [2022-11-20 11:43:20,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:20,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:43:20,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:20,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:43:20,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:43:20,463 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:43:20,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 419 transitions, 1491 flow. Second operand has 8 states, 8 states have (on average 338.375) internal successors, (2707), 8 states have internal predecessors, (2707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:20,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:20,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:43:20,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:23,174 INFO L130 PetriNetUnfolder]: 924/4821 cut-off events. [2022-11-20 11:43:23,174 INFO L131 PetriNetUnfolder]: For 2037/2046 co-relation queries the response was YES. [2022-11-20 11:43:23,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8429 conditions, 4821 events. 924/4821 cut-off events. For 2037/2046 co-relation queries the response was YES. Maximal size of possible extension queue 630. Compared 52723 event pairs, 460 based on Foata normal form. 9/4030 useless extension candidates. Maximal degree in co-relation 7769. Up to 621 conditions per place. [2022-11-20 11:43:23,336 INFO L137 encePairwiseOnDemand]: 396/412 looper letters, 69 selfloop transitions, 17 changer transitions 0/445 dead transitions. [2022-11-20 11:43:23,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 445 transitions, 1736 flow [2022-11-20 11:43:23,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:43:23,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:43:23,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3780 transitions. [2022-11-20 11:43:23,343 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8340688437775816 [2022-11-20 11:43:23,343 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3780 transitions. [2022-11-20 11:43:23,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3780 transitions. [2022-11-20 11:43:23,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:23,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3780 transitions. [2022-11-20 11:43:23,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.6363636363636) internal successors, (3780), 11 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,358 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,358 INFO L175 Difference]: Start difference. First operand has 446 places, 419 transitions, 1491 flow. Second operand 11 states and 3780 transitions. [2022-11-20 11:43:23,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 445 transitions, 1736 flow [2022-11-20 11:43:23,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 445 transitions, 1712 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-11-20 11:43:23,382 INFO L231 Difference]: Finished difference. Result has 452 places, 420 transitions, 1514 flow [2022-11-20 11:43:23,383 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1467, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1514, PETRI_PLACES=452, PETRI_TRANSITIONS=420} [2022-11-20 11:43:23,383 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 78 predicate places. [2022-11-20 11:43:23,384 INFO L495 AbstractCegarLoop]: Abstraction has has 452 places, 420 transitions, 1514 flow [2022-11-20 11:43:23,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 338.375) internal successors, (2707), 8 states have internal predecessors, (2707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,385 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:23,385 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:23,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 11:43:23,385 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:23,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:23,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1555077574, now seen corresponding path program 1 times [2022-11-20 11:43:23,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:23,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288685980] [2022-11-20 11:43:23,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:23,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:23,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:23,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:23,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288685980] [2022-11-20 11:43:23,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288685980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:23,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:23,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:23,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121120826] [2022-11-20 11:43:23,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:23,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:23,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:23,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:23,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:23,532 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 412 [2022-11-20 11:43:23,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 420 transitions, 1514 flow. Second operand has 6 states, 6 states have (on average 329.6666666666667) internal successors, (1978), 6 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:23,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 412 [2022-11-20 11:43:23,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:25,778 INFO L130 PetriNetUnfolder]: 1398/4938 cut-off events. [2022-11-20 11:43:25,779 INFO L131 PetriNetUnfolder]: For 2357/2363 co-relation queries the response was YES. [2022-11-20 11:43:25,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9192 conditions, 4938 events. 1398/4938 cut-off events. For 2357/2363 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 62402 event pairs, 813 based on Foata normal form. 26/3788 useless extension candidates. Maximal degree in co-relation 9069. Up to 1567 conditions per place. [2022-11-20 11:43:25,890 INFO L137 encePairwiseOnDemand]: 395/412 looper letters, 73 selfloop transitions, 17 changer transitions 1/440 dead transitions. [2022-11-20 11:43:25,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 440 transitions, 1745 flow [2022-11-20 11:43:25,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:43:25,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:43:25,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2372 transitions. [2022-11-20 11:43:25,894 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8224687933425797 [2022-11-20 11:43:25,894 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2372 transitions. [2022-11-20 11:43:25,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2372 transitions. [2022-11-20 11:43:25,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:25,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2372 transitions. [2022-11-20 11:43:25,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 338.85714285714283) internal successors, (2372), 7 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:25,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:25,903 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:25,903 INFO L175 Difference]: Start difference. First operand has 452 places, 420 transitions, 1514 flow. Second operand 7 states and 2372 transitions. [2022-11-20 11:43:25,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 440 transitions, 1745 flow [2022-11-20 11:43:25,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 440 transitions, 1717 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-11-20 11:43:25,923 INFO L231 Difference]: Finished difference. Result has 455 places, 428 transitions, 1585 flow [2022-11-20 11:43:25,924 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1482, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1585, PETRI_PLACES=455, PETRI_TRANSITIONS=428} [2022-11-20 11:43:25,924 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 81 predicate places. [2022-11-20 11:43:25,925 INFO L495 AbstractCegarLoop]: Abstraction has has 455 places, 428 transitions, 1585 flow [2022-11-20 11:43:25,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.6666666666667) internal successors, (1978), 6 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:25,925 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:25,926 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:25,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 11:43:25,926 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:25,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:25,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1515114197, now seen corresponding path program 1 times [2022-11-20 11:43:25,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:25,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154471208] [2022-11-20 11:43:25,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:25,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:26,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:26,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:26,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154471208] [2022-11-20 11:43:26,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154471208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:26,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:26,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:26,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945396981] [2022-11-20 11:43:26,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:26,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:26,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:26,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:26,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:26,034 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:43:26,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 428 transitions, 1585 flow. Second operand has 6 states, 6 states have (on average 349.1666666666667) internal successors, (2095), 6 states have internal predecessors, (2095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:26,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:26,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:43:26,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:27,744 INFO L130 PetriNetUnfolder]: 279/3218 cut-off events. [2022-11-20 11:43:27,744 INFO L131 PetriNetUnfolder]: For 1500/1779 co-relation queries the response was YES. [2022-11-20 11:43:27,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6586 conditions, 3218 events. 279/3218 cut-off events. For 1500/1779 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 29351 event pairs, 76 based on Foata normal form. 6/3182 useless extension candidates. Maximal degree in co-relation 6331. Up to 268 conditions per place. [2022-11-20 11:43:27,881 INFO L137 encePairwiseOnDemand]: 404/412 looper letters, 53 selfloop transitions, 8 changer transitions 0/439 dead transitions. [2022-11-20 11:43:27,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 439 transitions, 1743 flow [2022-11-20 11:43:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:43:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:43:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2479 transitions. [2022-11-20 11:43:27,889 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8595700416088765 [2022-11-20 11:43:27,889 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2479 transitions. [2022-11-20 11:43:27,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2479 transitions. [2022-11-20 11:43:27,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:27,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2479 transitions. [2022-11-20 11:43:27,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 354.14285714285717) internal successors, (2479), 7 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:27,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:27,900 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:27,900 INFO L175 Difference]: Start difference. First operand has 455 places, 428 transitions, 1585 flow. Second operand 7 states and 2479 transitions. [2022-11-20 11:43:27,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 439 transitions, 1743 flow [2022-11-20 11:43:27,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 439 transitions, 1736 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:43:27,930 INFO L231 Difference]: Finished difference. Result has 459 places, 428 transitions, 1594 flow [2022-11-20 11:43:27,931 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1576, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1594, PETRI_PLACES=459, PETRI_TRANSITIONS=428} [2022-11-20 11:43:27,932 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 85 predicate places. [2022-11-20 11:43:27,932 INFO L495 AbstractCegarLoop]: Abstraction has has 459 places, 428 transitions, 1594 flow [2022-11-20 11:43:27,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.1666666666667) internal successors, (2095), 6 states have internal predecessors, (2095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:27,933 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:27,933 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:27,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 11:43:27,933 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:27,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash -235733116, now seen corresponding path program 1 times [2022-11-20 11:43:27,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:27,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595724337] [2022-11-20 11:43:27,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:27,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:28,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:28,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:28,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595724337] [2022-11-20 11:43:28,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595724337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:28,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:28,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:28,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281505374] [2022-11-20 11:43:28,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:28,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:28,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:28,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:28,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:28,097 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 412 [2022-11-20 11:43:28,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 428 transitions, 1594 flow. Second operand has 6 states, 6 states have (on average 329.8333333333333) internal successors, (1979), 6 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:28,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:28,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 412 [2022-11-20 11:43:28,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:30,061 INFO L130 PetriNetUnfolder]: 1302/4383 cut-off events. [2022-11-20 11:43:30,061 INFO L131 PetriNetUnfolder]: For 2599/2605 co-relation queries the response was YES. [2022-11-20 11:43:30,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9120 conditions, 4383 events. 1302/4383 cut-off events. For 2599/2605 co-relation queries the response was YES. Maximal size of possible extension queue 972. Compared 57466 event pairs, 612 based on Foata normal form. 13/3417 useless extension candidates. Maximal degree in co-relation 8993. Up to 1317 conditions per place. [2022-11-20 11:43:30,176 INFO L137 encePairwiseOnDemand]: 394/412 looper letters, 93 selfloop transitions, 20 changer transitions 1/463 dead transitions. [2022-11-20 11:43:30,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 463 transitions, 1944 flow [2022-11-20 11:43:30,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:43:30,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:43:30,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2386 transitions. [2022-11-20 11:43:30,180 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8273231622746186 [2022-11-20 11:43:30,180 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2386 transitions. [2022-11-20 11:43:30,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2386 transitions. [2022-11-20 11:43:30,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:30,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2386 transitions. [2022-11-20 11:43:30,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 340.85714285714283) internal successors, (2386), 7 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:30,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:30,186 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:30,186 INFO L175 Difference]: Start difference. First operand has 459 places, 428 transitions, 1594 flow. Second operand 7 states and 2386 transitions. [2022-11-20 11:43:30,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 463 transitions, 1944 flow [2022-11-20 11:43:30,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 463 transitions, 1935 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:43:30,216 INFO L231 Difference]: Finished difference. Result has 465 places, 439 transitions, 1721 flow [2022-11-20 11:43:30,217 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1581, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1721, PETRI_PLACES=465, PETRI_TRANSITIONS=439} [2022-11-20 11:43:30,218 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 91 predicate places. [2022-11-20 11:43:30,218 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 439 transitions, 1721 flow [2022-11-20 11:43:30,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.8333333333333) internal successors, (1979), 6 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:30,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:30,219 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:30,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 11:43:30,219 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:30,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:30,220 INFO L85 PathProgramCache]: Analyzing trace with hash -300684201, now seen corresponding path program 1 times [2022-11-20 11:43:30,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:30,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064440728] [2022-11-20 11:43:30,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:30,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:30,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:30,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064440728] [2022-11-20 11:43:30,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064440728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:30,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:30,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:30,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567910822] [2022-11-20 11:43:30,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:30,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:30,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:30,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:30,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:30,353 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:43:30,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 439 transitions, 1721 flow. Second operand has 6 states, 6 states have (on average 349.3333333333333) internal successors, (2096), 6 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:30,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:30,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:43:30,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:34,571 INFO L130 PetriNetUnfolder]: 1433/11339 cut-off events. [2022-11-20 11:43:34,571 INFO L131 PetriNetUnfolder]: For 6994/7142 co-relation queries the response was YES. [2022-11-20 11:43:34,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23174 conditions, 11339 events. 1433/11339 cut-off events. For 6994/7142 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 152696 event pairs, 513 based on Foata normal form. 0/10295 useless extension candidates. Maximal degree in co-relation 22882. Up to 1113 conditions per place. [2022-11-20 11:43:34,755 INFO L137 encePairwiseOnDemand]: 404/412 looper letters, 53 selfloop transitions, 8 changer transitions 0/450 dead transitions. [2022-11-20 11:43:34,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 450 transitions, 1879 flow [2022-11-20 11:43:34,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:43:34,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:43:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2479 transitions. [2022-11-20 11:43:34,772 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8595700416088765 [2022-11-20 11:43:34,772 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2479 transitions. [2022-11-20 11:43:34,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2479 transitions. [2022-11-20 11:43:34,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:34,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2479 transitions. [2022-11-20 11:43:34,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 354.14285714285717) internal successors, (2479), 7 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:34,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:34,785 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:34,785 INFO L175 Difference]: Start difference. First operand has 465 places, 439 transitions, 1721 flow. Second operand 7 states and 2479 transitions. [2022-11-20 11:43:34,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 450 transitions, 1879 flow [2022-11-20 11:43:34,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 450 transitions, 1871 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:43:34,908 INFO L231 Difference]: Finished difference. Result has 469 places, 439 transitions, 1729 flow [2022-11-20 11:43:34,909 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1711, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1729, PETRI_PLACES=469, PETRI_TRANSITIONS=439} [2022-11-20 11:43:34,914 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 95 predicate places. [2022-11-20 11:43:34,914 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 439 transitions, 1729 flow [2022-11-20 11:43:34,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.3333333333333) internal successors, (2096), 6 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:34,915 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:34,915 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:34,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 11:43:34,916 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:34,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:34,916 INFO L85 PathProgramCache]: Analyzing trace with hash -938614369, now seen corresponding path program 1 times [2022-11-20 11:43:34,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:34,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579784598] [2022-11-20 11:43:34,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:34,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:35,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:35,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:35,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579784598] [2022-11-20 11:43:35,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579784598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:35,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:35,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:35,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002379568] [2022-11-20 11:43:35,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:35,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:35,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:35,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:35,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:35,052 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:43:35,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 439 transitions, 1729 flow. Second operand has 6 states, 6 states have (on average 349.5) internal successors, (2097), 6 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:35,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:35,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:43:35,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:37,388 INFO L130 PetriNetUnfolder]: 276/3387 cut-off events. [2022-11-20 11:43:37,388 INFO L131 PetriNetUnfolder]: For 1736/2006 co-relation queries the response was YES. [2022-11-20 11:43:37,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7040 conditions, 3387 events. 276/3387 cut-off events. For 1736/2006 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 31350 event pairs, 106 based on Foata normal form. 6/3367 useless extension candidates. Maximal degree in co-relation 6754. Up to 248 conditions per place. [2022-11-20 11:43:37,503 INFO L137 encePairwiseOnDemand]: 406/412 looper letters, 49 selfloop transitions, 6 changer transitions 0/444 dead transitions. [2022-11-20 11:43:37,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 444 transitions, 1855 flow [2022-11-20 11:43:37,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:37,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:37,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2124 transitions. [2022-11-20 11:43:37,507 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8592233009708737 [2022-11-20 11:43:37,507 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2124 transitions. [2022-11-20 11:43:37,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2124 transitions. [2022-11-20 11:43:37,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:37,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2124 transitions. [2022-11-20 11:43:37,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 354.0) internal successors, (2124), 6 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:37,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 412.0) internal successors, (2884), 7 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:37,511 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 412.0) internal successors, (2884), 7 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:37,511 INFO L175 Difference]: Start difference. First operand has 469 places, 439 transitions, 1729 flow. Second operand 6 states and 2124 transitions. [2022-11-20 11:43:37,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 444 transitions, 1855 flow [2022-11-20 11:43:37,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 444 transitions, 1849 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 11:43:37,535 INFO L231 Difference]: Finished difference. Result has 470 places, 438 transitions, 1733 flow [2022-11-20 11:43:37,536 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1721, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1733, PETRI_PLACES=470, PETRI_TRANSITIONS=438} [2022-11-20 11:43:37,536 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 96 predicate places. [2022-11-20 11:43:37,537 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 438 transitions, 1733 flow [2022-11-20 11:43:37,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.5) internal successors, (2097), 6 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:37,537 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:37,538 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:37,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 11:43:37,538 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:37,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:37,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1672211799, now seen corresponding path program 1 times [2022-11-20 11:43:37,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:37,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89779888] [2022-11-20 11:43:37,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:37,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:37,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:37,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:37,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89779888] [2022-11-20 11:43:37,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89779888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:37,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:37,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:37,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964896114] [2022-11-20 11:43:37,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:37,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:37,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:37,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:37,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:37,659 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:43:37,661 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 438 transitions, 1733 flow. Second operand has 6 states, 6 states have (on average 349.5) internal successors, (2097), 6 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:37,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:37,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:43:37,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:41,203 INFO L130 PetriNetUnfolder]: 1683/7020 cut-off events. [2022-11-20 11:43:41,203 INFO L131 PetriNetUnfolder]: For 4998/6270 co-relation queries the response was YES. [2022-11-20 11:43:41,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14935 conditions, 7020 events. 1683/7020 cut-off events. For 4998/6270 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 82462 event pairs, 528 based on Foata normal form. 6/6006 useless extension candidates. Maximal degree in co-relation 14635. Up to 1450 conditions per place. [2022-11-20 11:43:41,354 INFO L137 encePairwiseOnDemand]: 404/412 looper letters, 57 selfloop transitions, 8 changer transitions 0/452 dead transitions. [2022-11-20 11:43:41,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 452 transitions, 1911 flow [2022-11-20 11:43:41,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:43:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:43:41,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2479 transitions. [2022-11-20 11:43:41,359 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8595700416088765 [2022-11-20 11:43:41,359 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2479 transitions. [2022-11-20 11:43:41,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2479 transitions. [2022-11-20 11:43:41,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:41,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2479 transitions. [2022-11-20 11:43:41,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 354.14285714285717) internal successors, (2479), 7 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:41,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:41,370 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:41,370 INFO L175 Difference]: Start difference. First operand has 470 places, 438 transitions, 1733 flow. Second operand 7 states and 2479 transitions. [2022-11-20 11:43:41,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 452 transitions, 1911 flow [2022-11-20 11:43:41,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 452 transitions, 1900 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:43:41,436 INFO L231 Difference]: Finished difference. Result has 471 places, 438 transitions, 1738 flow [2022-11-20 11:43:41,437 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1720, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1738, PETRI_PLACES=471, PETRI_TRANSITIONS=438} [2022-11-20 11:43:41,438 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 97 predicate places. [2022-11-20 11:43:41,438 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 438 transitions, 1738 flow [2022-11-20 11:43:41,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.5) internal successors, (2097), 6 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:41,439 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:41,439 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:41,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-20 11:43:41,440 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:41,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:41,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1476131908, now seen corresponding path program 1 times [2022-11-20 11:43:41,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:41,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376428779] [2022-11-20 11:43:41,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:41,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:41,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:41,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376428779] [2022-11-20 11:43:41,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376428779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:41,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:41,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:43:41,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994365652] [2022-11-20 11:43:41,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:41,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:43:41,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:41,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:43:41,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:43:41,643 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:43:41,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 438 transitions, 1738 flow. Second operand has 8 states, 8 states have (on average 339.5) internal successors, (2716), 8 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:41,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:41,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:43:41,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:43,976 INFO L130 PetriNetUnfolder]: 374/3297 cut-off events. [2022-11-20 11:43:43,977 INFO L131 PetriNetUnfolder]: For 1644/2121 co-relation queries the response was YES. [2022-11-20 11:43:44,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7040 conditions, 3297 events. 374/3297 cut-off events. For 1644/2121 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 30495 event pairs, 86 based on Foata normal form. 31/3303 useless extension candidates. Maximal degree in co-relation 6751. Up to 188 conditions per place. [2022-11-20 11:43:44,082 INFO L137 encePairwiseOnDemand]: 398/412 looper letters, 65 selfloop transitions, 17 changer transitions 0/457 dead transitions. [2022-11-20 11:43:44,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 457 transitions, 1950 flow [2022-11-20 11:43:44,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:43:44,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:43:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3773 transitions. [2022-11-20 11:43:44,087 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8325242718446602 [2022-11-20 11:43:44,087 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3773 transitions. [2022-11-20 11:43:44,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3773 transitions. [2022-11-20 11:43:44,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:44,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3773 transitions. [2022-11-20 11:43:44,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.0) internal successors, (3773), 11 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:44,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:44,100 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:44,100 INFO L175 Difference]: Start difference. First operand has 471 places, 438 transitions, 1738 flow. Second operand 11 states and 3773 transitions. [2022-11-20 11:43:44,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 457 transitions, 1950 flow [2022-11-20 11:43:44,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 457 transitions, 1937 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:43:44,127 INFO L231 Difference]: Finished difference. Result has 476 places, 436 transitions, 1744 flow [2022-11-20 11:43:44,128 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1710, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1744, PETRI_PLACES=476, PETRI_TRANSITIONS=436} [2022-11-20 11:43:44,128 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 102 predicate places. [2022-11-20 11:43:44,128 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 436 transitions, 1744 flow [2022-11-20 11:43:44,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 339.5) internal successors, (2716), 8 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:44,129 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:44,130 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:44,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-20 11:43:44,130 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:44,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:44,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1759810817, now seen corresponding path program 1 times [2022-11-20 11:43:44,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:44,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790858284] [2022-11-20 11:43:44,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:44,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:44,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:44,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790858284] [2022-11-20 11:43:44,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790858284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:44,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:44,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:44,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611298549] [2022-11-20 11:43:44,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:44,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:44,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:44,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:44,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:44,230 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:43:44,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 436 transitions, 1744 flow. Second operand has 6 states, 6 states have (on average 349.6666666666667) internal successors, (2098), 6 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:44,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:44,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:43:44,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:48,560 INFO L130 PetriNetUnfolder]: 1406/10909 cut-off events. [2022-11-20 11:43:48,560 INFO L131 PetriNetUnfolder]: For 7153/7924 co-relation queries the response was YES. [2022-11-20 11:43:48,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22176 conditions, 10909 events. 1406/10909 cut-off events. For 7153/7924 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 145878 event pairs, 798 based on Foata normal form. 47/10191 useless extension candidates. Maximal degree in co-relation 21869. Up to 1029 conditions per place. [2022-11-20 11:43:48,745 INFO L137 encePairwiseOnDemand]: 406/412 looper letters, 52 selfloop transitions, 6 changer transitions 0/443 dead transitions. [2022-11-20 11:43:48,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 443 transitions, 1886 flow [2022-11-20 11:43:48,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:48,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2124 transitions. [2022-11-20 11:43:48,747 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8592233009708737 [2022-11-20 11:43:48,747 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2124 transitions. [2022-11-20 11:43:48,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2124 transitions. [2022-11-20 11:43:48,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:48,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2124 transitions. [2022-11-20 11:43:48,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 354.0) internal successors, (2124), 6 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:48,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 412.0) internal successors, (2884), 7 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:48,753 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 412.0) internal successors, (2884), 7 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:48,754 INFO L175 Difference]: Start difference. First operand has 476 places, 436 transitions, 1744 flow. Second operand 6 states and 2124 transitions. [2022-11-20 11:43:48,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 443 transitions, 1886 flow [2022-11-20 11:43:48,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 443 transitions, 1849 flow, removed 1 selfloop flow, removed 9 redundant places. [2022-11-20 11:43:48,833 INFO L231 Difference]: Finished difference. Result has 471 places, 435 transitions, 1717 flow [2022-11-20 11:43:48,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1705, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1717, PETRI_PLACES=471, PETRI_TRANSITIONS=435} [2022-11-20 11:43:48,834 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 97 predicate places. [2022-11-20 11:43:48,834 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 435 transitions, 1717 flow [2022-11-20 11:43:48,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.6666666666667) internal successors, (2098), 6 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:48,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:48,835 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:48,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-20 11:43:48,836 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:48,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:48,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1484550059, now seen corresponding path program 1 times [2022-11-20 11:43:48,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:48,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642191824] [2022-11-20 11:43:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:48,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:49,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:49,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:49,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642191824] [2022-11-20 11:43:49,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642191824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:49,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:49,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:43:49,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919817145] [2022-11-20 11:43:49,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:49,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:43:49,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:49,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:43:49,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:43:49,014 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:43:49,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 435 transitions, 1717 flow. Second operand has 8 states, 8 states have (on average 339.625) internal successors, (2717), 8 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:49,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:49,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:43:49,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:51,796 INFO L130 PetriNetUnfolder]: 328/3610 cut-off events. [2022-11-20 11:43:51,796 INFO L131 PetriNetUnfolder]: For 1804/2182 co-relation queries the response was YES. [2022-11-20 11:43:51,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7560 conditions, 3610 events. 328/3610 cut-off events. For 1804/2182 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 34335 event pairs, 86 based on Foata normal form. 28/3622 useless extension candidates. Maximal degree in co-relation 7274. Up to 209 conditions per place. [2022-11-20 11:43:51,929 INFO L137 encePairwiseOnDemand]: 398/412 looper letters, 66 selfloop transitions, 17 changer transitions 0/457 dead transitions. [2022-11-20 11:43:51,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 457 transitions, 1951 flow [2022-11-20 11:43:51,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:43:51,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:43:51,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3774 transitions. [2022-11-20 11:43:51,935 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8327449249779347 [2022-11-20 11:43:51,936 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3774 transitions. [2022-11-20 11:43:51,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3774 transitions. [2022-11-20 11:43:51,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:51,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3774 transitions. [2022-11-20 11:43:51,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.09090909090907) internal successors, (3774), 11 states have internal predecessors, (3774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:51,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:51,948 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:51,949 INFO L175 Difference]: Start difference. First operand has 471 places, 435 transitions, 1717 flow. Second operand 11 states and 3774 transitions. [2022-11-20 11:43:51,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 457 transitions, 1951 flow [2022-11-20 11:43:51,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 457 transitions, 1933 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:43:51,978 INFO L231 Difference]: Finished difference. Result has 475 places, 434 transitions, 1729 flow [2022-11-20 11:43:51,979 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1695, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1729, PETRI_PLACES=475, PETRI_TRANSITIONS=434} [2022-11-20 11:43:51,979 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 101 predicate places. [2022-11-20 11:43:51,980 INFO L495 AbstractCegarLoop]: Abstraction has has 475 places, 434 transitions, 1729 flow [2022-11-20 11:43:51,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 339.625) internal successors, (2717), 8 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:51,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:51,981 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:51,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-20 11:43:51,981 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:51,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:51,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1512207053, now seen corresponding path program 1 times [2022-11-20 11:43:51,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:51,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178908046] [2022-11-20 11:43:51,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:51,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:52,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:52,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:52,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178908046] [2022-11-20 11:43:52,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178908046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:52,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:52,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:43:52,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383662677] [2022-11-20 11:43:52,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:52,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:52,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:52,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:52,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:52,089 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 412 [2022-11-20 11:43:52,091 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 434 transitions, 1729 flow. Second operand has 6 states, 6 states have (on average 349.8333333333333) internal successors, (2099), 6 states have internal predecessors, (2099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:52,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:52,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 412 [2022-11-20 11:43:52,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:55,181 INFO L130 PetriNetUnfolder]: 1650/6876 cut-off events. [2022-11-20 11:43:55,181 INFO L131 PetriNetUnfolder]: For 5249/6500 co-relation queries the response was YES. [2022-11-20 11:43:55,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14799 conditions, 6876 events. 1650/6876 cut-off events. For 5249/6500 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 81316 event pairs, 705 based on Foata normal form. 6/5901 useless extension candidates. Maximal degree in co-relation 14503. Up to 1334 conditions per place. [2022-11-20 11:43:55,322 INFO L137 encePairwiseOnDemand]: 406/412 looper letters, 52 selfloop transitions, 6 changer transitions 0/441 dead transitions. [2022-11-20 11:43:55,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 441 transitions, 1869 flow [2022-11-20 11:43:55,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:43:55,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2124 transitions. [2022-11-20 11:43:55,327 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8592233009708737 [2022-11-20 11:43:55,327 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2124 transitions. [2022-11-20 11:43:55,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2124 transitions. [2022-11-20 11:43:55,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:55,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2124 transitions. [2022-11-20 11:43:55,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 354.0) internal successors, (2124), 6 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:55,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 412.0) internal successors, (2884), 7 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:55,336 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 412.0) internal successors, (2884), 7 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:55,336 INFO L175 Difference]: Start difference. First operand has 475 places, 434 transitions, 1729 flow. Second operand 6 states and 2124 transitions. [2022-11-20 11:43:55,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 441 transitions, 1869 flow [2022-11-20 11:43:55,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 441 transitions, 1832 flow, removed 1 selfloop flow, removed 9 redundant places. [2022-11-20 11:43:55,393 INFO L231 Difference]: Finished difference. Result has 470 places, 433 transitions, 1702 flow [2022-11-20 11:43:55,394 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1690, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1702, PETRI_PLACES=470, PETRI_TRANSITIONS=433} [2022-11-20 11:43:55,395 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 96 predicate places. [2022-11-20 11:43:55,395 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 433 transitions, 1702 flow [2022-11-20 11:43:55,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.8333333333333) internal successors, (2099), 6 states have internal predecessors, (2099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:55,396 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:55,396 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:55,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-20 11:43:55,396 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:43:55,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:55,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1904352454, now seen corresponding path program 1 times [2022-11-20 11:43:55,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:55,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056693450] [2022-11-20 11:43:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:55,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:55,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:55,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:55,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056693450] [2022-11-20 11:43:55,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056693450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:55,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:55,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:43:55,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859868450] [2022-11-20 11:43:55,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:55,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:43:55,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:55,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:43:55,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:43:55,568 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:43:55,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 433 transitions, 1702 flow. Second operand has 8 states, 8 states have (on average 339.625) internal successors, (2717), 8 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:55,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:55,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:43:55,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:44:00,482 INFO L130 PetriNetUnfolder]: 1882/10631 cut-off events. [2022-11-20 11:44:00,483 INFO L131 PetriNetUnfolder]: For 8929/9886 co-relation queries the response was YES. [2022-11-20 11:44:00,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23198 conditions, 10631 events. 1882/10631 cut-off events. For 8929/9886 co-relation queries the response was YES. Maximal size of possible extension queue 767. Compared 141303 event pairs, 434 based on Foata normal form. 36/9699 useless extension candidates. Maximal degree in co-relation 22914. Up to 855 conditions per place. [2022-11-20 11:44:00,684 INFO L137 encePairwiseOnDemand]: 398/412 looper letters, 73 selfloop transitions, 17 changer transitions 0/459 dead transitions. [2022-11-20 11:44:00,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 459 transitions, 1993 flow [2022-11-20 11:44:00,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:44:00,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:44:00,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3773 transitions. [2022-11-20 11:44:00,689 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8325242718446602 [2022-11-20 11:44:00,690 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3773 transitions. [2022-11-20 11:44:00,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3773 transitions. [2022-11-20 11:44:00,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:44:00,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3773 transitions. [2022-11-20 11:44:00,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.0) internal successors, (3773), 11 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:00,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:00,704 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:00,705 INFO L175 Difference]: Start difference. First operand has 470 places, 433 transitions, 1702 flow. Second operand 11 states and 3773 transitions. [2022-11-20 11:44:00,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 459 transitions, 1993 flow [2022-11-20 11:44:00,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 459 transitions, 1947 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:44:00,794 INFO L231 Difference]: Finished difference. Result has 474 places, 431 transitions, 1703 flow [2022-11-20 11:44:00,795 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1669, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1703, PETRI_PLACES=474, PETRI_TRANSITIONS=431} [2022-11-20 11:44:00,795 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 100 predicate places. [2022-11-20 11:44:00,796 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 431 transitions, 1703 flow [2022-11-20 11:44:00,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 339.625) internal successors, (2717), 8 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:00,797 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:44:00,797 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:44:00,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-20 11:44:00,797 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:44:00,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:44:00,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1094614918, now seen corresponding path program 1 times [2022-11-20 11:44:00,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:44:00,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112737592] [2022-11-20 11:44:00,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:44:00,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:44:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:44:00,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:44:00,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:44:00,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112737592] [2022-11-20 11:44:00,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112737592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:44:00,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:44:00,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:44:00,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548514719] [2022-11-20 11:44:00,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:44:00,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:44:00,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:44:00,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:44:00,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:44:00,997 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:44:00,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 431 transitions, 1703 flow. Second operand has 8 states, 8 states have (on average 339.75) internal successors, (2718), 8 states have internal predecessors, (2718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:01,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:44:01,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:44:01,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:44:06,865 INFO L130 PetriNetUnfolder]: 1688/14176 cut-off events. [2022-11-20 11:44:06,866 INFO L131 PetriNetUnfolder]: For 9411/10231 co-relation queries the response was YES. [2022-11-20 11:44:07,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29415 conditions, 14176 events. 1688/14176 cut-off events. For 9411/10231 co-relation queries the response was YES. Maximal size of possible extension queue 669. Compared 196945 event pairs, 575 based on Foata normal form. 36/13370 useless extension candidates. Maximal degree in co-relation 29132. Up to 1053 conditions per place. [2022-11-20 11:44:07,106 INFO L137 encePairwiseOnDemand]: 398/412 looper letters, 74 selfloop transitions, 17 changer transitions 0/460 dead transitions. [2022-11-20 11:44:07,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 460 transitions, 1990 flow [2022-11-20 11:44:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:44:07,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:44:07,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3774 transitions. [2022-11-20 11:44:07,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8327449249779347 [2022-11-20 11:44:07,111 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3774 transitions. [2022-11-20 11:44:07,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3774 transitions. [2022-11-20 11:44:07,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:44:07,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3774 transitions. [2022-11-20 11:44:07,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.09090909090907) internal successors, (3774), 11 states have internal predecessors, (3774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:07,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:07,118 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:07,118 INFO L175 Difference]: Start difference. First operand has 474 places, 431 transitions, 1703 flow. Second operand 11 states and 3774 transitions. [2022-11-20 11:44:07,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 460 transitions, 1990 flow [2022-11-20 11:44:07,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 460 transitions, 1944 flow, removed 1 selfloop flow, removed 10 redundant places. [2022-11-20 11:44:07,219 INFO L231 Difference]: Finished difference. Result has 473 places, 430 transitions, 1689 flow [2022-11-20 11:44:07,220 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1655, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1689, PETRI_PLACES=473, PETRI_TRANSITIONS=430} [2022-11-20 11:44:07,221 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 99 predicate places. [2022-11-20 11:44:07,221 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 430 transitions, 1689 flow [2022-11-20 11:44:07,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 339.75) internal successors, (2718), 8 states have internal predecessors, (2718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:07,222 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:44:07,222 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:44:07,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-20 11:44:07,222 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:44:07,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:44:07,223 INFO L85 PathProgramCache]: Analyzing trace with hash 678929944, now seen corresponding path program 1 times [2022-11-20 11:44:07,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:44:07,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509683179] [2022-11-20 11:44:07,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:44:07,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:44:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:44:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:44:07,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:44:07,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509683179] [2022-11-20 11:44:07,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509683179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:44:07,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:44:07,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:44:07,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88265980] [2022-11-20 11:44:07,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:44:07,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:44:07,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:44:07,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:44:07,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:44:07,401 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:44:07,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 430 transitions, 1689 flow. Second operand has 8 states, 8 states have (on average 339.75) internal successors, (2718), 8 states have internal predecessors, (2718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:07,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:44:07,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:44:07,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:44:12,075 INFO L130 PetriNetUnfolder]: 2396/11388 cut-off events. [2022-11-20 11:44:12,075 INFO L131 PetriNetUnfolder]: For 10000/13255 co-relation queries the response was YES. [2022-11-20 11:44:12,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24807 conditions, 11388 events. 2396/11388 cut-off events. For 10000/13255 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 148679 event pairs, 840 based on Foata normal form. 56/10134 useless extension candidates. Maximal degree in co-relation 24526. Up to 1031 conditions per place. [2022-11-20 11:44:12,281 INFO L137 encePairwiseOnDemand]: 398/412 looper letters, 73 selfloop transitions, 17 changer transitions 0/456 dead transitions. [2022-11-20 11:44:12,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 456 transitions, 1973 flow [2022-11-20 11:44:12,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:44:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:44:12,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3773 transitions. [2022-11-20 11:44:12,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8325242718446602 [2022-11-20 11:44:12,287 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3773 transitions. [2022-11-20 11:44:12,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3773 transitions. [2022-11-20 11:44:12,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:44:12,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3773 transitions. [2022-11-20 11:44:12,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.0) internal successors, (3773), 11 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:12,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:12,300 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:12,300 INFO L175 Difference]: Start difference. First operand has 473 places, 430 transitions, 1689 flow. Second operand 11 states and 3773 transitions. [2022-11-20 11:44:12,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 456 transitions, 1973 flow [2022-11-20 11:44:12,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 456 transitions, 1901 flow, removed 1 selfloop flow, removed 10 redundant places. [2022-11-20 11:44:12,395 INFO L231 Difference]: Finished difference. Result has 472 places, 428 transitions, 1664 flow [2022-11-20 11:44:12,396 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1630, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1664, PETRI_PLACES=472, PETRI_TRANSITIONS=428} [2022-11-20 11:44:12,397 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 98 predicate places. [2022-11-20 11:44:12,397 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 428 transitions, 1664 flow [2022-11-20 11:44:12,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 339.75) internal successors, (2718), 8 states have internal predecessors, (2718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:12,398 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:44:12,398 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:44:12,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-20 11:44:12,399 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-20 11:44:12,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:44:12,399 INFO L85 PathProgramCache]: Analyzing trace with hash -428006961, now seen corresponding path program 1 times [2022-11-20 11:44:12,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:44:12,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212022930] [2022-11-20 11:44:12,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:44:12,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:44:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:44:12,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:44:12,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:44:12,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212022930] [2022-11-20 11:44:12,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212022930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:44:12,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:44:12,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:44:12,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959880368] [2022-11-20 11:44:12,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:44:12,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:44:12,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:44:12,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:44:12,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:44:12,636 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2022-11-20 11:44:12,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 428 transitions, 1664 flow. Second operand has 8 states, 8 states have (on average 339.875) internal successors, (2719), 8 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:12,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:44:12,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2022-11-20 11:44:12,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:44:16,950 INFO L130 PetriNetUnfolder]: 2022/9092 cut-off events. [2022-11-20 11:44:16,950 INFO L131 PetriNetUnfolder]: For 7269/8922 co-relation queries the response was YES. [2022-11-20 11:44:17,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19805 conditions, 9092 events. 2022/9092 cut-off events. For 7269/8922 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 111303 event pairs, 699 based on Foata normal form. 56/7982 useless extension candidates. Maximal degree in co-relation 19526. Up to 1031 conditions per place. [2022-11-20 11:44:17,070 INFO L137 encePairwiseOnDemand]: 398/412 looper letters, 0 selfloop transitions, 0 changer transitions 457/457 dead transitions. [2022-11-20 11:44:17,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 457 transitions, 1944 flow [2022-11-20 11:44:17,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:44:17,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:44:17,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3774 transitions. [2022-11-20 11:44:17,075 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8327449249779347 [2022-11-20 11:44:17,075 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3774 transitions. [2022-11-20 11:44:17,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3774 transitions. [2022-11-20 11:44:17,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:44:17,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3774 transitions. [2022-11-20 11:44:17,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 343.09090909090907) internal successors, (3774), 11 states have internal predecessors, (3774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:17,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:17,088 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 412.0) internal successors, (4944), 12 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:17,088 INFO L175 Difference]: Start difference. First operand has 472 places, 428 transitions, 1664 flow. Second operand 11 states and 3774 transitions. [2022-11-20 11:44:17,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 457 transitions, 1944 flow [2022-11-20 11:44:17,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 457 transitions, 1898 flow, removed 1 selfloop flow, removed 10 redundant places. [2022-11-20 11:44:17,158 INFO L231 Difference]: Finished difference. Result has 471 places, 0 transitions, 0 flow [2022-11-20 11:44:17,158 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=1616, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=471, PETRI_TRANSITIONS=0} [2022-11-20 11:44:17,159 INFO L288 CegarLoopForPetriNet]: 374 programPoint places, 97 predicate places. [2022-11-20 11:44:17,159 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 0 transitions, 0 flow [2022-11-20 11:44:17,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 339.875) internal successors, (2719), 8 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:44:17,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 75 remaining) [2022-11-20 11:44:17,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 75 remaining) [2022-11-20 11:44:17,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 75 remaining) [2022-11-20 11:44:17,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 75 remaining) [2022-11-20 11:44:17,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 75 remaining) [2022-11-20 11:44:17,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 75 remaining) [2022-11-20 11:44:17,166 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 75 remaining) [2022-11-20 11:44:17,166 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 75 remaining) [2022-11-20 11:44:17,166 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 75 remaining) [2022-11-20 11:44:17,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 75 remaining) [2022-11-20 11:44:17,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 75 remaining) [2022-11-20 11:44:17,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 75 remaining) [2022-11-20 11:44:17,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 75 remaining) [2022-11-20 11:44:17,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 75 remaining) [2022-11-20 11:44:17,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 75 remaining) [2022-11-20 11:44:17,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 75 remaining) [2022-11-20 11:44:17,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 75 remaining) [2022-11-20 11:44:17,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 75 remaining) [2022-11-20 11:44:17,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 75 remaining) [2022-11-20 11:44:17,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 75 remaining) [2022-11-20 11:44:17,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 75 remaining) [2022-11-20 11:44:17,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 75 remaining) [2022-11-20 11:44:17,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 75 remaining) [2022-11-20 11:44:17,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 75 remaining) [2022-11-20 11:44:17,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 75 remaining) [2022-11-20 11:44:17,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 75 remaining) [2022-11-20 11:44:17,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 75 remaining) [2022-11-20 11:44:17,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 75 remaining) [2022-11-20 11:44:17,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 75 remaining) [2022-11-20 11:44:17,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 75 remaining) [2022-11-20 11:44:17,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 75 remaining) [2022-11-20 11:44:17,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 75 remaining) [2022-11-20 11:44:17,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 75 remaining) [2022-11-20 11:44:17,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 75 remaining) [2022-11-20 11:44:17,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 75 remaining) [2022-11-20 11:44:17,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 75 remaining) [2022-11-20 11:44:17,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 75 remaining) [2022-11-20 11:44:17,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 75 remaining) [2022-11-20 11:44:17,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 75 remaining) [2022-11-20 11:44:17,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 75 remaining) [2022-11-20 11:44:17,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 75 remaining) [2022-11-20 11:44:17,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 75 remaining) [2022-11-20 11:44:17,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 75 remaining) [2022-11-20 11:44:17,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 75 remaining) [2022-11-20 11:44:17,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 75 remaining) [2022-11-20 11:44:17,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 75 remaining) [2022-11-20 11:44:17,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 75 remaining) [2022-11-20 11:44:17,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 75 remaining) [2022-11-20 11:44:17,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 75 remaining) [2022-11-20 11:44:17,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 75 remaining) [2022-11-20 11:44:17,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 75 remaining) [2022-11-20 11:44:17,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 75 remaining) [2022-11-20 11:44:17,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 75 remaining) [2022-11-20 11:44:17,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 75 remaining) [2022-11-20 11:44:17,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 75 remaining) [2022-11-20 11:44:17,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 75 remaining) [2022-11-20 11:44:17,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 75 remaining) [2022-11-20 11:44:17,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 75 remaining) [2022-11-20 11:44:17,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 75 remaining) [2022-11-20 11:44:17,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 75 remaining) [2022-11-20 11:44:17,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 75 remaining) [2022-11-20 11:44:17,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 75 remaining) [2022-11-20 11:44:17,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 75 remaining) [2022-11-20 11:44:17,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 75 remaining) [2022-11-20 11:44:17,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 75 remaining) [2022-11-20 11:44:17,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 75 remaining) [2022-11-20 11:44:17,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 75 remaining) [2022-11-20 11:44:17,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 75 remaining) [2022-11-20 11:44:17,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 75 remaining) [2022-11-20 11:44:17,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 75 remaining) [2022-11-20 11:44:17,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 75 remaining) [2022-11-20 11:44:17,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 75 remaining) [2022-11-20 11:44:17,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 75 remaining) [2022-11-20 11:44:17,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 75 remaining) [2022-11-20 11:44:17,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 75 remaining) [2022-11-20 11:44:17,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-20 11:44:17,184 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:44:17,192 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:44:17,192 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:44:17,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:44:17 BasicIcfg [2022-11-20 11:44:17,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:44:17,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:44:17,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:44:17,200 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:44:17,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:42:40" (3/4) ... [2022-11-20 11:44:17,204 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:44:17,212 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 11:44:17,213 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 11:44:17,213 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-20 11:44:17,219 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-20 11:44:17,219 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:44:17,219 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:44:17,220 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:44:17,273 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:44:17,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:44:17,280 INFO L158 Benchmark]: Toolchain (without parser) took 98861.05ms. Allocated memory was 138.4MB in the beginning and 12.8GB in the end (delta: 12.7GB). Free memory was 81.4MB in the beginning and 10.5GB in the end (delta: -10.4GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2022-11-20 11:44:17,280 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 138.4MB. Free memory is still 113.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:44:17,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.18ms. Allocated memory is still 138.4MB. Free memory was 81.2MB in the beginning and 69.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:44:17,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.62ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 69.8MB in the beginning and 150.3MB in the end (delta: -80.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-11-20 11:44:17,281 INFO L158 Benchmark]: Boogie Preprocessor took 58.29ms. Allocated memory is still 180.4MB. Free memory was 150.2MB in the beginning and 151.3MB in the end (delta: -1.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-11-20 11:44:17,282 INFO L158 Benchmark]: RCFGBuilder took 1216.17ms. Allocated memory is still 180.4MB. Free memory was 151.3MB in the beginning and 123.1MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-20 11:44:17,283 INFO L158 Benchmark]: TraceAbstraction took 97059.68ms. Allocated memory was 180.4MB in the beginning and 12.8GB in the end (delta: 12.6GB). Free memory was 122.7MB in the beginning and 10.5GB in the end (delta: -10.4GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2022-11-20 11:44:17,283 INFO L158 Benchmark]: Witness Printer took 73.77ms. Allocated memory is still 12.8GB. Free memory was 10.5GB in the beginning and 10.5GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:44:17,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 138.4MB. Free memory is still 113.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.18ms. Allocated memory is still 138.4MB. Free memory was 81.2MB in the beginning and 69.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.62ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 69.8MB in the beginning and 150.3MB in the end (delta: -80.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.29ms. Allocated memory is still 180.4MB. Free memory was 150.2MB in the beginning and 151.3MB in the end (delta: -1.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * RCFGBuilder took 1216.17ms. Allocated memory is still 180.4MB. Free memory was 151.3MB in the beginning and 123.1MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 97059.68ms. Allocated memory was 180.4MB in the beginning and 12.8GB in the end (delta: 12.6GB). Free memory was 122.7MB in the beginning and 10.5GB in the end (delta: -10.4GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Witness Printer took 73.77ms. Allocated memory is still 12.8GB. Free memory was 10.5GB in the beginning and 10.5GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 96.7s, OverallIterations: 39, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 89.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3443 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3443 mSDsluCounter, 2830 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1678 mSDsCounter, 257 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5334 IncrementalHoareTripleChecker+Invalid, 5591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 257 mSolverCounterUnsat, 1152 mSDtfsCounter, 5334 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 354 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 315 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1744occurred in iteration=32, InterpolantAutomatonStates: 291, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 3672 NumberOfCodeBlocks, 3672 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 3633 ConstructedInterpolants, 0 QuantifiedInterpolants, 8793 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 39 InterpolantComputations, 39 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! [2022-11-20 11:44:17,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9308f31-b444-4c48-a6c9-58afa9706173/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE