./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --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_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/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_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/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_79b9260b-624a-4d3c-912e-4f64f9da2ac5/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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- 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 11:08:28,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:08:28,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:08:28,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:08:28,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:08:28,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:08:28,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:08:28,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:08:28,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:08:28,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:08:28,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:08:28,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:08:28,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:08:28,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:08:28,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:08:28,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:08:28,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:08:28,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:08:28,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:08:28,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:08:28,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:08:28,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:08:28,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:08:28,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:08:28,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:08:28,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:08:28,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:08:28,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:08:28,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:08:28,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:08:28,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:08:28,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:08:28,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:08:28,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:08:28,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:08:28,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:08:28,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:08:28,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:08:28,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:08:28,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:08:28,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:08:28,936 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:08:28,977 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:08:28,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:08:28,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:08:28,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:08:28,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:08:28,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:08:28,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:08:28,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:08:28,981 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:08:28,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:08:28,983 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:08:28,983 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:08:28,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:08:28,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:08:28,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:08:28,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:08:28,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:08:28,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:08:28,985 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:08:28,985 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:08:28,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:08:28,985 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:08:28,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:08:28,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:08:28,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:08:28,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:08:28,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:08:28,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:08:28,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:08:28,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:08:28,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:08:28,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:08:28,988 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:08:28,989 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:08:28,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:08:28,989 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_79b9260b-624a-4d3c-912e-4f64f9da2ac5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2022-11-20 11:08:29,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:08:29,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:08:29,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:08:29,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:08:29,347 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:08:29,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2022-11-20 11:08:32,450 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:08:32,732 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:08:32,733 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2022-11-20 11:08:32,749 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/data/76e97456c/feeba8e36ec84f24a351aa598b2dd497/FLAGf15cdecb7 [2022-11-20 11:08:32,763 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/data/76e97456c/feeba8e36ec84f24a351aa598b2dd497 [2022-11-20 11:08:32,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:08:32,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:08:32,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:08:32,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:08:32,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:08:32,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:08:32" (1/1) ... [2022-11-20 11:08:32,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8754180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:32, skipping insertion in model container [2022-11-20 11:08:32,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:08:32" (1/1) ... [2022-11-20 11:08:32,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:08:32,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:08:33,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:08:33,377 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:08:33,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:08:33,531 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:08:33,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33 WrapperNode [2022-11-20 11:08:33,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:08:33,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:08:33,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:08:33,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:08:33,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (1/1) ... [2022-11-20 11:08:33,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (1/1) ... [2022-11-20 11:08:33,577 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-11-20 11:08:33,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:08:33,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:08:33,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:08:33,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:08:33,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (1/1) ... [2022-11-20 11:08:33,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (1/1) ... [2022-11-20 11:08:33,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (1/1) ... [2022-11-20 11:08:33,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (1/1) ... [2022-11-20 11:08:33,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (1/1) ... [2022-11-20 11:08:33,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (1/1) ... [2022-11-20 11:08:33,602 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (1/1) ... [2022-11-20 11:08:33,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (1/1) ... [2022-11-20 11:08:33,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:08:33,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:08:33,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:08:33,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:08:33,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (1/1) ... [2022-11-20 11:08:33,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:08:33,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:08:33,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:08:33,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:08:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:08:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:08:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:08:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:08:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:08:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:08:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:08:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:08:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:08:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:08:33,714 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 11:08:33,916 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:08:33,918 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:08:34,142 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:08:34,149 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:08:34,150 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:08:34,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:08:34 BoogieIcfgContainer [2022-11-20 11:08:34,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:08:34,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:08:34,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:08:34,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:08:34,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:08:32" (1/3) ... [2022-11-20 11:08:34,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a4f398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:08:34, skipping insertion in model container [2022-11-20 11:08:34,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:33" (2/3) ... [2022-11-20 11:08:34,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a4f398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:08:34, skipping insertion in model container [2022-11-20 11:08:34,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:08:34" (3/3) ... [2022-11-20 11:08:34,168 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2022-11-20 11:08:34,178 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:08:34,189 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:08:34,189 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 11:08:34,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:08:34,250 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:08:34,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 87 transitions, 179 flow [2022-11-20 11:08:34,329 INFO L130 PetriNetUnfolder]: 4/86 cut-off events. [2022-11-20 11:08:34,329 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:08:34,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 4/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-11-20 11:08:34,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 87 transitions, 179 flow [2022-11-20 11:08:34,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 86 transitions, 175 flow [2022-11-20 11:08:34,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:08:34,354 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;@5c537418, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:08:34,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-20 11:08:34,360 INFO L130 PetriNetUnfolder]: 1/19 cut-off events. [2022-11-20 11:08:34,361 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:08:34,361 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:34,362 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:34,362 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:34,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1677450047, now seen corresponding path program 1 times [2022-11-20 11:08:34,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:34,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554220842] [2022-11-20 11:08:34,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:34,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:34,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:34,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:34,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554220842] [2022-11-20 11:08:34,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554220842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:34,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:34,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:08:34,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104251467] [2022-11-20 11:08:34,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:34,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:08:34,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:34,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:08:34,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:08:34,720 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 87 [2022-11-20 11:08:34,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 86 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:34,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:34,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 87 [2022-11-20 11:08:34,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:34,805 INFO L130 PetriNetUnfolder]: 1/90 cut-off events. [2022-11-20 11:08:34,806 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:08:34,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 90 events. 1/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 2/83 useless extension candidates. Maximal degree in co-relation 62. Up to 14 conditions per place. [2022-11-20 11:08:34,808 INFO L137 encePairwiseOnDemand]: 77/87 looper letters, 16 selfloop transitions, 4 changer transitions 1/90 dead transitions. [2022-11-20 11:08:34,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 90 transitions, 223 flow [2022-11-20 11:08:34,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:08:34,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:08:34,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 382 transitions. [2022-11-20 11:08:34,824 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8781609195402299 [2022-11-20 11:08:34,825 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 382 transitions. [2022-11-20 11:08:34,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 382 transitions. [2022-11-20 11:08:34,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:34,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 382 transitions. [2022-11-20 11:08:34,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 0 states have call successors, (0), 0 states 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 11:08:34,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 11:08:34,855 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 11:08:34,856 INFO L175 Difference]: Start difference. First operand has 86 places, 86 transitions, 175 flow. Second operand 5 states and 382 transitions. [2022-11-20 11:08:34,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 90 transitions, 223 flow [2022-11-20 11:08:34,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 90 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:08:34,869 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 198 flow [2022-11-20 11:08:34,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=198, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2022-11-20 11:08:34,873 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 6 predicate places. [2022-11-20 11:08:34,874 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 198 flow [2022-11-20 11:08:34,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:34,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:34,875 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:34,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:08:34,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:34,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:34,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1414112580, now seen corresponding path program 1 times [2022-11-20 11:08:34,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:34,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426515615] [2022-11-20 11:08:34,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:34,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:34,997 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:08:34,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:34,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426515615] [2022-11-20 11:08:34,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426515615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:34,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:34,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:08:34,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340307073] [2022-11-20 11:08:34,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:35,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:08:35,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:35,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:08:35,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:08:35,002 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 87 [2022-11-20 11:08:35,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:35,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:35,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 87 [2022-11-20 11:08:35,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:35,074 INFO L130 PetriNetUnfolder]: 1/88 cut-off events. [2022-11-20 11:08:35,074 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:08:35,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 88 events. 1/88 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 1/84 useless extension candidates. Maximal degree in co-relation 86. Up to 7 conditions per place. [2022-11-20 11:08:35,075 INFO L137 encePairwiseOnDemand]: 81/87 looper letters, 8 selfloop transitions, 8 changer transitions 0/85 dead transitions. [2022-11-20 11:08:35,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 85 transitions, 228 flow [2022-11-20 11:08:35,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:08:35,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:08:35,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 369 transitions. [2022-11-20 11:08:35,082 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8482758620689655 [2022-11-20 11:08:35,082 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 369 transitions. [2022-11-20 11:08:35,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 369 transitions. [2022-11-20 11:08:35,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:35,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 369 transitions. [2022-11-20 11:08:35,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:35,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 11:08:35,088 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 11:08:35,088 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 198 flow. Second operand 5 states and 369 transitions. [2022-11-20 11:08:35,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 85 transitions, 228 flow [2022-11-20 11:08:35,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 85 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:08:35,105 INFO L231 Difference]: Finished difference. Result has 94 places, 85 transitions, 216 flow [2022-11-20 11:08:35,106 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=216, PETRI_PLACES=94, PETRI_TRANSITIONS=85} [2022-11-20 11:08:35,106 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 8 predicate places. [2022-11-20 11:08:35,107 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 85 transitions, 216 flow [2022-11-20 11:08:35,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:35,107 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:35,107 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:35,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:08:35,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:35,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:35,109 INFO L85 PathProgramCache]: Analyzing trace with hash 887817208, now seen corresponding path program 1 times [2022-11-20 11:08:35,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:35,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131859289] [2022-11-20 11:08:35,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:35,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:35,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:35,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:35,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131859289] [2022-11-20 11:08:35,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131859289] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:08:35,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220664155] [2022-11-20 11:08:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:35,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:08:35,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:08:35,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:08:35,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:08:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:35,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:08:35,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:35,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:35,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:35,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220664155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:35,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:08:35,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:08:35,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485254462] [2022-11-20 11:08:35,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:35,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:08:35,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:35,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:08:35,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:08:35,505 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 87 [2022-11-20 11:08:35,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 85 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:35,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:35,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 87 [2022-11-20 11:08:35,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:35,635 INFO L130 PetriNetUnfolder]: 1/87 cut-off events. [2022-11-20 11:08:35,635 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-20 11:08:35,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 87 events. 1/87 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 1/83 useless extension candidates. Maximal degree in co-relation 12. Up to 6 conditions per place. [2022-11-20 11:08:35,636 INFO L137 encePairwiseOnDemand]: 82/87 looper letters, 12 selfloop transitions, 6 changer transitions 0/87 dead transitions. [2022-11-20 11:08:35,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 87 transitions, 254 flow [2022-11-20 11:08:35,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:08:35,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:08:35,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 516 transitions. [2022-11-20 11:08:35,640 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8472906403940886 [2022-11-20 11:08:35,640 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 516 transitions. [2022-11-20 11:08:35,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 516 transitions. [2022-11-20 11:08:35,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:35,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 516 transitions. [2022-11-20 11:08:35,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 0 states have call successors, (0), 0 states 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 11:08:35,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 0 states have call successors, (0), 0 states 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 11:08:35,646 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 0 states have call successors, (0), 0 states 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 11:08:35,646 INFO L175 Difference]: Start difference. First operand has 94 places, 85 transitions, 216 flow. Second operand 7 states and 516 transitions. [2022-11-20 11:08:35,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 87 transitions, 254 flow [2022-11-20 11:08:35,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 87 transitions, 242 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 11:08:35,650 INFO L231 Difference]: Finished difference. Result has 96 places, 84 transitions, 212 flow [2022-11-20 11:08:35,650 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=212, PETRI_PLACES=96, PETRI_TRANSITIONS=84} [2022-11-20 11:08:35,651 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 10 predicate places. [2022-11-20 11:08:35,652 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 84 transitions, 212 flow [2022-11-20 11:08:35,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:08:35,652 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:35,653 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] [2022-11-20 11:08:35,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:35,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:08:35,859 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:35,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:35,860 INFO L85 PathProgramCache]: Analyzing trace with hash -988423937, now seen corresponding path program 1 times [2022-11-20 11:08:35,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:35,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973712150] [2022-11-20 11:08:35,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:35,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:35,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:35,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973712150] [2022-11-20 11:08:35,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973712150] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:08:35,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189130852] [2022-11-20 11:08:35,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:35,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:08:35,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:08:35,976 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:08:35,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:08:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:36,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:08:36,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:36,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:36,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:08:36,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:36,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189130852] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:08:36,200 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:08:36,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 11:08:36,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726371074] [2022-11-20 11:08:36,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:08:36,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:08:36,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:36,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:08:36,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:08:36,204 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 87 [2022-11-20 11:08:36,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 84 transitions, 212 flow. Second operand has 10 states, 10 states have (on average 73.7) internal successors, (737), 10 states have internal predecessors, (737), 0 states have call successors, (0), 0 states 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 11:08:36,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:36,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 87 [2022-11-20 11:08:36,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:36,341 INFO L130 PetriNetUnfolder]: 1/95 cut-off events. [2022-11-20 11:08:36,346 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-20 11:08:36,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 95 events. 1/95 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 2/92 useless extension candidates. Maximal degree in co-relation 74. Up to 7 conditions per place. [2022-11-20 11:08:36,350 INFO L137 encePairwiseOnDemand]: 81/87 looper letters, 17 selfloop transitions, 9 changer transitions 0/95 dead transitions. [2022-11-20 11:08:36,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 95 transitions, 302 flow [2022-11-20 11:08:36,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:08:36,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 11:08:36,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 667 transitions. [2022-11-20 11:08:36,354 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8518518518518519 [2022-11-20 11:08:36,354 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 667 transitions. [2022-11-20 11:08:36,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 667 transitions. [2022-11-20 11:08:36,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:36,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 667 transitions. [2022-11-20 11:08:36,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.11111111111111) internal successors, (667), 9 states have internal predecessors, (667), 0 states have call successors, (0), 0 states 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 11:08:36,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 0 states have call successors, (0), 0 states 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 11:08:36,362 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 0 states have call successors, (0), 0 states 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 11:08:36,362 INFO L175 Difference]: Start difference. First operand has 96 places, 84 transitions, 212 flow. Second operand 9 states and 667 transitions. [2022-11-20 11:08:36,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 95 transitions, 302 flow [2022-11-20 11:08:36,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 95 transitions, 289 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-11-20 11:08:36,369 INFO L231 Difference]: Finished difference. Result has 103 places, 88 transitions, 259 flow [2022-11-20 11:08:36,369 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=259, PETRI_PLACES=103, PETRI_TRANSITIONS=88} [2022-11-20 11:08:36,371 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 17 predicate places. [2022-11-20 11:08:36,372 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 88 transitions, 259 flow [2022-11-20 11:08:36,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 73.7) internal successors, (737), 10 states have internal predecessors, (737), 0 states have call successors, (0), 0 states 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 11:08:36,372 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:36,373 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:36,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:36,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:08:36,578 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:36,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:36,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2045090657, now seen corresponding path program 2 times [2022-11-20 11:08:36,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:36,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494465835] [2022-11-20 11:08:36,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:36,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:36,843 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:36,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:36,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494465835] [2022-11-20 11:08:36,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494465835] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:08:36,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102692023] [2022-11-20 11:08:36,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:08:36,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:08:36,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:08:36,845 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:08:36,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:08:36,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:08:36,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:08:36,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:08:36,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:37,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-20 11:08:37,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:08:37,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-20 11:08:37,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-20 11:08:37,544 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 11:08:37,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:37,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102692023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:37,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:08:37,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2022-11-20 11:08:37,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719886787] [2022-11-20 11:08:37,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:37,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:08:37,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:37,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:08:37,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:08:37,551 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 87 [2022-11-20 11:08:37,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 88 transitions, 259 flow. Second operand has 9 states, 9 states have (on average 61.333333333333336) internal successors, (552), 9 states have internal predecessors, (552), 0 states have call successors, (0), 0 states 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 11:08:37,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:37,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 87 [2022-11-20 11:08:37,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:37,722 INFO L130 PetriNetUnfolder]: 41/234 cut-off events. [2022-11-20 11:08:37,723 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-11-20 11:08:37,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 234 events. 41/234 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 947 event pairs, 20 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 313. Up to 92 conditions per place. [2022-11-20 11:08:37,727 INFO L137 encePairwiseOnDemand]: 78/87 looper letters, 24 selfloop transitions, 9 changer transitions 0/97 dead transitions. [2022-11-20 11:08:37,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 97 transitions, 343 flow [2022-11-20 11:08:37,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:08:37,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 11:08:37,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 514 transitions. [2022-11-20 11:08:37,730 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7385057471264368 [2022-11-20 11:08:37,730 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 514 transitions. [2022-11-20 11:08:37,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 514 transitions. [2022-11-20 11:08:37,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:37,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 514 transitions. [2022-11-20 11:08:37,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 64.25) internal successors, (514), 8 states have internal predecessors, (514), 0 states have call successors, (0), 0 states 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 11:08:37,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states 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 11:08:37,735 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states 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 11:08:37,735 INFO L175 Difference]: Start difference. First operand has 103 places, 88 transitions, 259 flow. Second operand 8 states and 514 transitions. [2022-11-20 11:08:37,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 97 transitions, 343 flow [2022-11-20 11:08:37,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 97 transitions, 329 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-20 11:08:37,745 INFO L231 Difference]: Finished difference. Result has 109 places, 93 transitions, 293 flow [2022-11-20 11:08:37,745 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=293, PETRI_PLACES=109, PETRI_TRANSITIONS=93} [2022-11-20 11:08:37,748 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 23 predicate places. [2022-11-20 11:08:37,749 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 93 transitions, 293 flow [2022-11-20 11:08:37,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 61.333333333333336) internal successors, (552), 9 states have internal predecessors, (552), 0 states have call successors, (0), 0 states 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 11:08:37,749 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:37,750 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:37,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:37,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:08:37,955 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:37,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:37,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1026699263, now seen corresponding path program 1 times [2022-11-20 11:08:37,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:37,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662998063] [2022-11-20 11:08:37,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:37,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:38,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:38,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662998063] [2022-11-20 11:08:38,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662998063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:08:38,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057134531] [2022-11-20 11:08:38,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:38,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:08:38,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:08:38,100 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:08:38,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:08:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:38,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:08:38,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:38,283 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:38,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:08:38,391 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:38,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057134531] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:08:38,392 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:08:38,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 11:08:38,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169157278] [2022-11-20 11:08:38,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:08:38,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:08:38,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:38,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:08:38,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:08:38,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 87 [2022-11-20 11:08:38,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 93 transitions, 293 flow. Second operand has 18 states, 18 states have (on average 74.05555555555556) internal successors, (1333), 18 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states 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 11:08:38,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:38,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 87 [2022-11-20 11:08:38,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:38,691 INFO L130 PetriNetUnfolder]: 2/168 cut-off events. [2022-11-20 11:08:38,691 INFO L131 PetriNetUnfolder]: For 67/68 co-relation queries the response was YES. [2022-11-20 11:08:38,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 168 events. 2/168 cut-off events. For 67/68 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 265 event pairs, 0 based on Foata normal form. 4/162 useless extension candidates. Maximal degree in co-relation 273. Up to 9 conditions per place. [2022-11-20 11:08:38,693 INFO L137 encePairwiseOnDemand]: 81/87 looper letters, 33 selfloop transitions, 21 changer transitions 0/128 dead transitions. [2022-11-20 11:08:38,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 128 transitions, 563 flow [2022-11-20 11:08:38,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:08:38,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 11:08:38,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1549 transitions. [2022-11-20 11:08:38,697 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8478379857690203 [2022-11-20 11:08:38,698 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1549 transitions. [2022-11-20 11:08:38,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1549 transitions. [2022-11-20 11:08:38,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:38,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1549 transitions. [2022-11-20 11:08:38,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 73.76190476190476) internal successors, (1549), 21 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states 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 11:08:38,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 87.0) internal successors, (1914), 22 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states 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 11:08:38,712 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 87.0) internal successors, (1914), 22 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states 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 11:08:38,712 INFO L175 Difference]: Start difference. First operand has 109 places, 93 transitions, 293 flow. Second operand 21 states and 1549 transitions. [2022-11-20 11:08:38,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 128 transitions, 563 flow [2022-11-20 11:08:38,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 128 transitions, 553 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:08:38,720 INFO L231 Difference]: Finished difference. Result has 130 places, 106 transitions, 447 flow [2022-11-20 11:08:38,720 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=447, PETRI_PLACES=130, PETRI_TRANSITIONS=106} [2022-11-20 11:08:38,722 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 44 predicate places. [2022-11-20 11:08:38,723 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 106 transitions, 447 flow [2022-11-20 11:08:38,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 74.05555555555556) internal successors, (1333), 18 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states 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 11:08:38,723 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:38,724 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:38,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:38,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:08:38,929 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:38,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:38,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1125676865, now seen corresponding path program 2 times [2022-11-20 11:08:38,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:38,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62011331] [2022-11-20 11:08:38,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:38,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:39,304 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:39,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:39,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62011331] [2022-11-20 11:08:39,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62011331] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:08:39,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546731974] [2022-11-20 11:08:39,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:08:39,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:08:39,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:08:39,309 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:08:39,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:08:39,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:08:39,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:08:39,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:08:39,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:39,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-20 11:08:39,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:08:39,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-20 11:08:39,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-20 11:08:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-20 11:08:40,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:40,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546731974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:40,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:08:40,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 24 [2022-11-20 11:08:40,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211001627] [2022-11-20 11:08:40,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:40,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:08:40,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:40,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:08:40,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:08:40,046 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 87 [2022-11-20 11:08:40,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 106 transitions, 447 flow. Second operand has 9 states, 9 states have (on average 61.44444444444444) internal successors, (553), 9 states have internal predecessors, (553), 0 states have call successors, (0), 0 states 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 11:08:40,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:40,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 87 [2022-11-20 11:08:40,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:40,224 INFO L130 PetriNetUnfolder]: 42/313 cut-off events. [2022-11-20 11:08:40,224 INFO L131 PetriNetUnfolder]: For 171/190 co-relation queries the response was YES. [2022-11-20 11:08:40,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 313 events. 42/313 cut-off events. For 171/190 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1244 event pairs, 23 based on Foata normal form. 8/284 useless extension candidates. Maximal degree in co-relation 411. Up to 88 conditions per place. [2022-11-20 11:08:40,229 INFO L137 encePairwiseOnDemand]: 78/87 looper letters, 24 selfloop transitions, 9 changer transitions 2/111 dead transitions. [2022-11-20 11:08:40,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 111 transitions, 529 flow [2022-11-20 11:08:40,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:08:40,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 11:08:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 515 transitions. [2022-11-20 11:08:40,232 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7399425287356322 [2022-11-20 11:08:40,232 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 515 transitions. [2022-11-20 11:08:40,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 515 transitions. [2022-11-20 11:08:40,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:40,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 515 transitions. [2022-11-20 11:08:40,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 64.375) internal successors, (515), 8 states have internal predecessors, (515), 0 states have call successors, (0), 0 states 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 11:08:40,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states 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 11:08:40,236 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states 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 11:08:40,236 INFO L175 Difference]: Start difference. First operand has 130 places, 106 transitions, 447 flow. Second operand 8 states and 515 transitions. [2022-11-20 11:08:40,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 111 transitions, 529 flow [2022-11-20 11:08:40,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 111 transitions, 485 flow, removed 15 selfloop flow, removed 7 redundant places. [2022-11-20 11:08:40,242 INFO L231 Difference]: Finished difference. Result has 131 places, 106 transitions, 427 flow [2022-11-20 11:08:40,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=427, PETRI_PLACES=131, PETRI_TRANSITIONS=106} [2022-11-20 11:08:40,243 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 45 predicate places. [2022-11-20 11:08:40,243 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 106 transitions, 427 flow [2022-11-20 11:08:40,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 61.44444444444444) internal successors, (553), 9 states have internal predecessors, (553), 0 states have call successors, (0), 0 states 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 11:08:40,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:40,244 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:40,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:40,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 11:08:40,449 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:40,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:40,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1240098145, now seen corresponding path program 1 times [2022-11-20 11:08:40,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:40,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842957428] [2022-11-20 11:08:40,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:40,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:40,778 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:40,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:40,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842957428] [2022-11-20 11:08:40,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842957428] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:08:40,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780027693] [2022-11-20 11:08:40,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:40,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:08:40,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:08:40,783 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:08:40,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:08:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:40,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 11:08:40,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:41,027 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:41,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:08:41,267 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:08:41,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780027693] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:08:41,268 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:08:41,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-20 11:08:41,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487958782] [2022-11-20 11:08:41,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:08:41,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:08:41,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:41,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:08:41,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:08:41,272 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 87 [2022-11-20 11:08:41,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 106 transitions, 427 flow. Second operand has 23 states, 23 states have (on average 74.30434782608695) internal successors, (1709), 23 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states 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 11:08:41,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:41,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 87 [2022-11-20 11:08:41,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:41,669 INFO L130 PetriNetUnfolder]: 2/187 cut-off events. [2022-11-20 11:08:41,669 INFO L131 PetriNetUnfolder]: For 187/188 co-relation queries the response was YES. [2022-11-20 11:08:41,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 187 events. 2/187 cut-off events. For 187/188 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 259 event pairs, 0 based on Foata normal form. 3/182 useless extension candidates. Maximal degree in co-relation 377. Up to 12 conditions per place. [2022-11-20 11:08:41,670 INFO L137 encePairwiseOnDemand]: 81/87 looper letters, 45 selfloop transitions, 30 changer transitions 0/149 dead transitions. [2022-11-20 11:08:41,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 149 transitions, 775 flow [2022-11-20 11:08:41,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 11:08:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 11:08:41,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2208 transitions. [2022-11-20 11:08:41,677 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8459770114942529 [2022-11-20 11:08:41,677 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2208 transitions. [2022-11-20 11:08:41,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2208 transitions. [2022-11-20 11:08:41,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:41,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2208 transitions. [2022-11-20 11:08:41,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 73.6) internal successors, (2208), 30 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states 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 11:08:41,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 87.0) internal successors, (2697), 31 states have internal predecessors, (2697), 0 states have call successors, (0), 0 states 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 11:08:41,691 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 87.0) internal successors, (2697), 31 states have internal predecessors, (2697), 0 states have call successors, (0), 0 states 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 11:08:41,692 INFO L175 Difference]: Start difference. First operand has 131 places, 106 transitions, 427 flow. Second operand 30 states and 2208 transitions. [2022-11-20 11:08:41,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 149 transitions, 775 flow [2022-11-20 11:08:41,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 149 transitions, 759 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:08:41,697 INFO L231 Difference]: Finished difference. Result has 157 places, 116 transitions, 577 flow [2022-11-20 11:08:41,698 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=577, PETRI_PLACES=157, PETRI_TRANSITIONS=116} [2022-11-20 11:08:41,701 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 71 predicate places. [2022-11-20 11:08:41,701 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 116 transitions, 577 flow [2022-11-20 11:08:41,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 74.30434782608695) internal successors, (1709), 23 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states 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 11:08:41,702 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:41,702 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:41,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:41,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 11:08:41,908 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:41,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:41,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2104647484, now seen corresponding path program 2 times [2022-11-20 11:08:41,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:41,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115667213] [2022-11-20 11:08:41,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:41,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:08:42,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:42,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115667213] [2022-11-20 11:08:42,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115667213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:42,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:42,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:08:42,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033940895] [2022-11-20 11:08:42,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:42,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:08:42,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:42,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:08:42,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:08:42,339 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 87 [2022-11-20 11:08:42,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 116 transitions, 577 flow. Second operand has 10 states, 10 states have (on average 59.3) internal successors, (593), 10 states have internal predecessors, (593), 0 states have call successors, (0), 0 states 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 11:08:42,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:42,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 87 [2022-11-20 11:08:42,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:42,649 INFO L130 PetriNetUnfolder]: 95/394 cut-off events. [2022-11-20 11:08:42,649 INFO L131 PetriNetUnfolder]: For 248/257 co-relation queries the response was YES. [2022-11-20 11:08:42,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 861 conditions, 394 events. 95/394 cut-off events. For 248/257 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1437 event pairs, 36 based on Foata normal form. 2/384 useless extension candidates. Maximal degree in co-relation 582. Up to 113 conditions per place. [2022-11-20 11:08:42,652 INFO L137 encePairwiseOnDemand]: 74/87 looper letters, 32 selfloop transitions, 14 changer transitions 22/155 dead transitions. [2022-11-20 11:08:42,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 155 transitions, 805 flow [2022-11-20 11:08:42,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:08:42,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 11:08:42,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 766 transitions. [2022-11-20 11:08:42,655 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7337164750957854 [2022-11-20 11:08:42,655 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 766 transitions. [2022-11-20 11:08:42,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 766 transitions. [2022-11-20 11:08:42,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:42,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 766 transitions. [2022-11-20 11:08:42,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 63.833333333333336) internal successors, (766), 12 states have internal predecessors, (766), 0 states have call successors, (0), 0 states 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 11:08:42,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 87.0) internal successors, (1131), 13 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states 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 11:08:42,660 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 87.0) internal successors, (1131), 13 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states 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 11:08:42,660 INFO L175 Difference]: Start difference. First operand has 157 places, 116 transitions, 577 flow. Second operand 12 states and 766 transitions. [2022-11-20 11:08:42,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 155 transitions, 805 flow [2022-11-20 11:08:42,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 155 transitions, 759 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-20 11:08:42,667 INFO L231 Difference]: Finished difference. Result has 156 places, 120 transitions, 603 flow [2022-11-20 11:08:42,668 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=603, PETRI_PLACES=156, PETRI_TRANSITIONS=120} [2022-11-20 11:08:42,668 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 70 predicate places. [2022-11-20 11:08:42,668 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 120 transitions, 603 flow [2022-11-20 11:08:42,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 59.3) internal successors, (593), 10 states have internal predecessors, (593), 0 states have call successors, (0), 0 states 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 11:08:42,669 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:42,669 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:42,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:08:42,670 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:42,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:42,670 INFO L85 PathProgramCache]: Analyzing trace with hash 372811861, now seen corresponding path program 1 times [2022-11-20 11:08:42,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:42,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103471088] [2022-11-20 11:08:42,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:42,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:43,080 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:08:43,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:43,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103471088] [2022-11-20 11:08:43,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103471088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:43,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:43,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:08:43,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51761124] [2022-11-20 11:08:43,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:43,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:08:43,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:43,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:08:43,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:08:43,083 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 87 [2022-11-20 11:08:43,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 120 transitions, 603 flow. Second operand has 10 states, 10 states have (on average 59.5) internal successors, (595), 10 states have internal predecessors, (595), 0 states have call successors, (0), 0 states 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 11:08:43,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:43,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 87 [2022-11-20 11:08:43,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:43,355 INFO L130 PetriNetUnfolder]: 30/285 cut-off events. [2022-11-20 11:08:43,355 INFO L131 PetriNetUnfolder]: For 394/420 co-relation queries the response was YES. [2022-11-20 11:08:43,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 285 events. 30/285 cut-off events. For 394/420 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 959 event pairs, 9 based on Foata normal form. 12/286 useless extension candidates. Maximal degree in co-relation 666. Up to 30 conditions per place. [2022-11-20 11:08:43,358 INFO L137 encePairwiseOnDemand]: 75/87 looper letters, 30 selfloop transitions, 13 changer transitions 10/138 dead transitions. [2022-11-20 11:08:43,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 138 transitions, 795 flow [2022-11-20 11:08:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:08:43,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:08:43,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 688 transitions. [2022-11-20 11:08:43,360 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7189132706374086 [2022-11-20 11:08:43,360 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 688 transitions. [2022-11-20 11:08:43,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 688 transitions. [2022-11-20 11:08:43,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:43,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 688 transitions. [2022-11-20 11:08:43,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 62.54545454545455) internal successors, (688), 11 states have internal predecessors, (688), 0 states have call successors, (0), 0 states 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 11:08:43,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 87.0) internal successors, (1044), 12 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states 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 11:08:43,365 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 87.0) internal successors, (1044), 12 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states 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 11:08:43,365 INFO L175 Difference]: Start difference. First operand has 156 places, 120 transitions, 603 flow. Second operand 11 states and 688 transitions. [2022-11-20 11:08:43,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 138 transitions, 795 flow [2022-11-20 11:08:43,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 138 transitions, 769 flow, removed 3 selfloop flow, removed 8 redundant places. [2022-11-20 11:08:43,373 INFO L231 Difference]: Finished difference. Result has 162 places, 122 transitions, 644 flow [2022-11-20 11:08:43,373 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=644, PETRI_PLACES=162, PETRI_TRANSITIONS=122} [2022-11-20 11:08:43,374 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 76 predicate places. [2022-11-20 11:08:43,374 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 122 transitions, 644 flow [2022-11-20 11:08:43,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 59.5) internal successors, (595), 10 states have internal predecessors, (595), 0 states have call successors, (0), 0 states 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 11:08:43,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:43,374 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:43,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:08:43,375 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:43,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:43,375 INFO L85 PathProgramCache]: Analyzing trace with hash -538601876, now seen corresponding path program 1 times [2022-11-20 11:08:43,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:43,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872598744] [2022-11-20 11:08:43,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:43,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:08:44,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:44,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872598744] [2022-11-20 11:08:44,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872598744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:44,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:44,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:08:44,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011105017] [2022-11-20 11:08:44,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:44,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:08:44,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:44,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:08:44,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:08:44,083 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 87 [2022-11-20 11:08:44,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 122 transitions, 644 flow. Second operand has 13 states, 13 states have (on average 52.46153846153846) internal successors, (682), 13 states have internal predecessors, (682), 0 states have call successors, (0), 0 states 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 11:08:44,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:44,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 87 [2022-11-20 11:08:44,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:44,806 INFO L130 PetriNetUnfolder]: 100/375 cut-off events. [2022-11-20 11:08:44,806 INFO L131 PetriNetUnfolder]: For 550/576 co-relation queries the response was YES. [2022-11-20 11:08:44,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1070 conditions, 375 events. 100/375 cut-off events. For 550/576 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1269 event pairs, 0 based on Foata normal form. 18/390 useless extension candidates. Maximal degree in co-relation 916. Up to 44 conditions per place. [2022-11-20 11:08:44,810 INFO L137 encePairwiseOnDemand]: 73/87 looper letters, 61 selfloop transitions, 21 changer transitions 24/183 dead transitions. [2022-11-20 11:08:44,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 183 transitions, 1107 flow [2022-11-20 11:08:44,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 11:08:44,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-11-20 11:08:44,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1274 transitions. [2022-11-20 11:08:44,814 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6366816591704147 [2022-11-20 11:08:44,814 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1274 transitions. [2022-11-20 11:08:44,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1274 transitions. [2022-11-20 11:08:44,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:44,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1274 transitions. [2022-11-20 11:08:44,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 55.391304347826086) internal successors, (1274), 23 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 11:08:44,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 87.0) internal successors, (2088), 24 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 11:08:44,830 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 87.0) internal successors, (2088), 24 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 11:08:44,830 INFO L175 Difference]: Start difference. First operand has 162 places, 122 transitions, 644 flow. Second operand 23 states and 1274 transitions. [2022-11-20 11:08:44,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 183 transitions, 1107 flow [2022-11-20 11:08:44,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 183 transitions, 1057 flow, removed 9 selfloop flow, removed 8 redundant places. [2022-11-20 11:08:44,839 INFO L231 Difference]: Finished difference. Result has 174 places, 121 transitions, 659 flow [2022-11-20 11:08:44,840 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=659, PETRI_PLACES=174, PETRI_TRANSITIONS=121} [2022-11-20 11:08:44,841 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 88 predicate places. [2022-11-20 11:08:44,841 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 121 transitions, 659 flow [2022-11-20 11:08:44,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 52.46153846153846) internal successors, (682), 13 states have internal predecessors, (682), 0 states have call successors, (0), 0 states 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 11:08:44,842 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:44,842 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:44,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:08:44,843 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:44,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:44,843 INFO L85 PathProgramCache]: Analyzing trace with hash 7739545, now seen corresponding path program 1 times [2022-11-20 11:08:44,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:44,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486794744] [2022-11-20 11:08:44,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:44,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:08:45,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:45,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486794744] [2022-11-20 11:08:45,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486794744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:45,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:45,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:08:45,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793827633] [2022-11-20 11:08:45,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:45,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:08:45,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:45,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:08:45,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:08:45,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 87 [2022-11-20 11:08:45,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 121 transitions, 659 flow. Second operand has 13 states, 13 states have (on average 50.61538461538461) internal successors, (658), 13 states have internal predecessors, (658), 0 states have call successors, (0), 0 states 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 11:08:45,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:45,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 87 [2022-11-20 11:08:45,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:46,236 INFO L130 PetriNetUnfolder]: 73/331 cut-off events. [2022-11-20 11:08:46,237 INFO L131 PetriNetUnfolder]: For 507/532 co-relation queries the response was YES. [2022-11-20 11:08:46,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 331 events. 73/331 cut-off events. For 507/532 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1042 event pairs, 0 based on Foata normal form. 16/344 useless extension candidates. Maximal degree in co-relation 678. Up to 61 conditions per place. [2022-11-20 11:08:46,240 INFO L137 encePairwiseOnDemand]: 72/87 looper letters, 54 selfloop transitions, 25 changer transitions 5/159 dead transitions. [2022-11-20 11:08:46,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 159 transitions, 967 flow [2022-11-20 11:08:46,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:08:46,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 11:08:46,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1113 transitions. [2022-11-20 11:08:46,243 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6091954022988506 [2022-11-20 11:08:46,243 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1113 transitions. [2022-11-20 11:08:46,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1113 transitions. [2022-11-20 11:08:46,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:46,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1113 transitions. [2022-11-20 11:08:46,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 53.0) internal successors, (1113), 21 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states 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 11:08:46,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 87.0) internal successors, (1914), 22 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states 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 11:08:46,250 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 87.0) internal successors, (1914), 22 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states 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 11:08:46,251 INFO L175 Difference]: Start difference. First operand has 174 places, 121 transitions, 659 flow. Second operand 21 states and 1113 transitions. [2022-11-20 11:08:46,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 159 transitions, 967 flow [2022-11-20 11:08:46,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 159 transitions, 857 flow, removed 19 selfloop flow, removed 19 redundant places. [2022-11-20 11:08:46,258 INFO L231 Difference]: Finished difference. Result has 170 places, 124 transitions, 641 flow [2022-11-20 11:08:46,259 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=641, PETRI_PLACES=170, PETRI_TRANSITIONS=124} [2022-11-20 11:08:46,259 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 84 predicate places. [2022-11-20 11:08:46,259 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 124 transitions, 641 flow [2022-11-20 11:08:46,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.61538461538461) internal successors, (658), 13 states have internal predecessors, (658), 0 states have call successors, (0), 0 states 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 11:08:46,260 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:46,260 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:46,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:08:46,260 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:46,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:46,261 INFO L85 PathProgramCache]: Analyzing trace with hash 483211269, now seen corresponding path program 1 times [2022-11-20 11:08:46,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:46,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296879396] [2022-11-20 11:08:46,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:46,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:08:46,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:46,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296879396] [2022-11-20 11:08:46,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296879396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:46,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:46,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:08:46,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871164562] [2022-11-20 11:08:46,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:46,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:08:46,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:46,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:08:46,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:08:46,896 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 87 [2022-11-20 11:08:46,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 124 transitions, 641 flow. Second operand has 13 states, 13 states have (on average 52.53846153846154) internal successors, (683), 13 states have internal predecessors, (683), 0 states have call successors, (0), 0 states 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 11:08:46,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:46,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 87 [2022-11-20 11:08:46,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:47,564 INFO L130 PetriNetUnfolder]: 68/297 cut-off events. [2022-11-20 11:08:47,564 INFO L131 PetriNetUnfolder]: For 331/352 co-relation queries the response was YES. [2022-11-20 11:08:47,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 297 events. 68/297 cut-off events. For 331/352 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 831 event pairs, 5 based on Foata normal form. 18/312 useless extension candidates. Maximal degree in co-relation 612. Up to 50 conditions per place. [2022-11-20 11:08:47,566 INFO L137 encePairwiseOnDemand]: 73/87 looper letters, 27 selfloop transitions, 12 changer transitions 49/161 dead transitions. [2022-11-20 11:08:47,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 161 transitions, 929 flow [2022-11-20 11:08:47,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:08:47,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 11:08:47,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 999 transitions. [2022-11-20 11:08:47,570 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6379310344827587 [2022-11-20 11:08:47,570 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 999 transitions. [2022-11-20 11:08:47,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 999 transitions. [2022-11-20 11:08:47,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:47,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 999 transitions. [2022-11-20 11:08:47,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 55.5) internal successors, (999), 18 states have internal predecessors, (999), 0 states have call successors, (0), 0 states 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 11:08:47,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 87.0) internal successors, (1653), 19 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states 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 11:08:47,578 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 87.0) internal successors, (1653), 19 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states 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 11:08:47,578 INFO L175 Difference]: Start difference. First operand has 170 places, 124 transitions, 641 flow. Second operand 18 states and 999 transitions. [2022-11-20 11:08:47,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 161 transitions, 929 flow [2022-11-20 11:08:47,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 161 transitions, 832 flow, removed 12 selfloop flow, removed 20 redundant places. [2022-11-20 11:08:47,586 INFO L231 Difference]: Finished difference. Result has 166 places, 100 transitions, 510 flow [2022-11-20 11:08:47,586 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=510, PETRI_PLACES=166, PETRI_TRANSITIONS=100} [2022-11-20 11:08:47,587 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 80 predicate places. [2022-11-20 11:08:47,587 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 100 transitions, 510 flow [2022-11-20 11:08:47,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 52.53846153846154) internal successors, (683), 13 states have internal predecessors, (683), 0 states have call successors, (0), 0 states 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 11:08:47,588 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:08:47,588 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:47,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:08:47,588 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:08:47,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:47,589 INFO L85 PathProgramCache]: Analyzing trace with hash -566517831, now seen corresponding path program 1 times [2022-11-20 11:08:47,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:08:47,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394271366] [2022-11-20 11:08:47,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:47,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:08:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:48,304 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:08:48,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:48,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394271366] [2022-11-20 11:08:48,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394271366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:48,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:48,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:08:48,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903914968] [2022-11-20 11:08:48,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:48,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:08:48,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:48,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:08:48,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:08:48,307 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 87 [2022-11-20 11:08:48,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 100 transitions, 510 flow. Second operand has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states 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 11:08:48,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:08:48,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 87 [2022-11-20 11:08:48,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:08:48,727 INFO L130 PetriNetUnfolder]: 20/169 cut-off events. [2022-11-20 11:08:48,728 INFO L131 PetriNetUnfolder]: For 236/236 co-relation queries the response was YES. [2022-11-20 11:08:48,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 169 events. 20/169 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 149 event pairs, 0 based on Foata normal form. 4/172 useless extension candidates. Maximal degree in co-relation 441. Up to 14 conditions per place. [2022-11-20 11:08:48,729 INFO L137 encePairwiseOnDemand]: 75/87 looper letters, 0 selfloop transitions, 0 changer transitions 109/109 dead transitions. [2022-11-20 11:08:48,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 109 transitions, 606 flow [2022-11-20 11:08:48,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:08:48,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-20 11:08:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 775 transitions. [2022-11-20 11:08:48,731 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5938697318007663 [2022-11-20 11:08:48,731 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 775 transitions. [2022-11-20 11:08:48,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 775 transitions. [2022-11-20 11:08:48,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:08:48,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 775 transitions. [2022-11-20 11:08:48,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 51.666666666666664) internal successors, (775), 15 states have internal predecessors, (775), 0 states have call successors, (0), 0 states 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 11:08:48,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 87.0) internal successors, (1392), 16 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 11:08:48,736 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 87.0) internal successors, (1392), 16 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 11:08:48,736 INFO L175 Difference]: Start difference. First operand has 166 places, 100 transitions, 510 flow. Second operand 15 states and 775 transitions. [2022-11-20 11:08:48,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 109 transitions, 606 flow [2022-11-20 11:08:48,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 109 transitions, 571 flow, removed 2 selfloop flow, removed 14 redundant places. [2022-11-20 11:08:48,741 INFO L231 Difference]: Finished difference. Result has 138 places, 0 transitions, 0 flow [2022-11-20 11:08:48,741 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=138, PETRI_TRANSITIONS=0} [2022-11-20 11:08:48,741 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 52 predicate places. [2022-11-20 11:08:48,742 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 0 transitions, 0 flow [2022-11-20 11:08:48,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.69230769230769) internal successors, (659), 13 states have internal predecessors, (659), 0 states have call successors, (0), 0 states 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 11:08:48,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2022-11-20 11:08:48,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-11-20 11:08:48,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-11-20 11:08:48,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-11-20 11:08:48,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-11-20 11:08:48,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-11-20 11:08:48,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-11-20 11:08:48,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-11-20 11:08:48,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-11-20 11:08:48,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:08:48,747 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:48,753 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:08:48,753 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:08:48,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:08:48 BasicIcfg [2022-11-20 11:08:48,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:08:48,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:08:48,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:08:48,759 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:08:48,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:08:34" (3/4) ... [2022-11-20 11:08:48,761 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:08:48,767 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 11:08:48,771 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 11:08:48,771 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 11:08:48,771 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:08:48,809 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:08:48,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:08:48,810 INFO L158 Benchmark]: Toolchain (without parser) took 16042.78ms. Allocated memory was 161.5MB in the beginning and 285.2MB in the end (delta: 123.7MB). Free memory was 115.7MB in the beginning and 170.1MB in the end (delta: -54.5MB). Peak memory consumption was 71.6MB. Max. memory is 16.1GB. [2022-11-20 11:08:48,810 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 115.3MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:08:48,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 763.74ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 127.1MB in the end (delta: -11.8MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2022-11-20 11:08:48,811 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.05ms. Allocated memory is still 161.5MB. Free memory was 127.1MB in the beginning and 125.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:08:48,811 INFO L158 Benchmark]: Boogie Preprocessor took 26.95ms. Allocated memory is still 161.5MB. Free memory was 125.0MB in the beginning and 123.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:08:48,812 INFO L158 Benchmark]: RCFGBuilder took 546.10ms. Allocated memory is still 161.5MB. Free memory was 122.9MB in the beginning and 108.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:08:48,812 INFO L158 Benchmark]: TraceAbstraction took 14596.63ms. Allocated memory was 161.5MB in the beginning and 285.2MB in the end (delta: 123.7MB). Free memory was 108.2MB in the beginning and 173.3MB in the end (delta: -65.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-20 11:08:48,812 INFO L158 Benchmark]: Witness Printer took 50.96ms. Allocated memory is still 285.2MB. Free memory was 173.3MB in the beginning and 170.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:08:48,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 115.3MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 763.74ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 127.1MB in the end (delta: -11.8MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.05ms. Allocated memory is still 161.5MB. Free memory was 127.1MB in the beginning and 125.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.95ms. Allocated memory is still 161.5MB. Free memory was 125.0MB in the beginning and 123.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 546.10ms. Allocated memory is still 161.5MB. Free memory was 122.9MB in the beginning and 108.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14596.63ms. Allocated memory was 161.5MB in the beginning and 285.2MB in the end (delta: 123.7MB). Free memory was 108.2MB in the beginning and 173.3MB in the end (delta: -65.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 50.96ms. Allocated memory is still 285.2MB. Free memory was 173.3MB in the beginning and 170.1MB 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: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: 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 3 procedures, 112 locations, 9 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: 14.5s, OverallIterations: 14, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1412 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1412 mSDsluCounter, 784 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 57 IncrementalHoareTripleChecker+Unchecked, 613 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1391 IncrementalHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 171 mSDtfsCounter, 1391 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 796 GetRequests, 509 SyntacticMatches, 11 SemanticMatches, 276 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1416 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=659occurred in iteration=11, InterpolantAutomatonStates: 193, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 1461 NumberOfCodeBlocks, 1391 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1627 ConstructedInterpolants, 5 QuantifiedInterpolants, 10301 SizeOfPredicates, 39 NumberOfNonLiveVariables, 620 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 23 InterpolantComputations, 11 PerfectInterpolantSequences, 2137/2857 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:08:48,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79b9260b-624a-4d3c-912e-4f64f9da2ac5/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