./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/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_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/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_fdd2665b-e4b9-4190-89f2-52d853215c24/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 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 --- 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 12:33:18,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:33:18,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:33:18,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:33:18,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:33:18,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:33:18,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:33:18,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:33:18,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:33:18,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:33:18,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:33:18,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:33:18,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:33:18,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:33:18,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:33:18,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:33:18,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:33:18,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:33:18,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:33:18,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:33:18,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:33:18,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:33:18,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:33:18,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:33:18,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:33:18,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:33:18,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:33:18,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:33:18,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:33:18,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:33:18,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:33:18,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:33:18,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:33:18,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:33:18,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:33:18,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:33:18,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:33:18,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:33:18,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:33:18,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:33:18,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:33:18,873 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 12:33:18,923 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:33:18,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:33:18,924 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:33:18,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:33:18,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:33:18,926 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:33:18,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:33:18,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:33:18,931 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:33:18,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:33:18,933 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:33:18,933 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:33:18,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:33:18,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:33:18,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:33:18,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:33:18,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:33:18,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:33:18,935 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 12:33:18,936 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:33:18,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:33:18,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:33:18,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:33:18,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:33:18,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:33:18,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:33:18,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:33:18,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:33:18,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:33:18,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:33:18,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:33:18,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:33:18,941 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:33:18,941 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:33:18,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:33:18,942 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_fdd2665b-e4b9-4190-89f2-52d853215c24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 [2022-11-20 12:33:19,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:33:19,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:33:19,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:33:19,453 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:33:19,454 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:33:19,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2022-11-20 12:33:22,965 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:33:23,413 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:33:23,418 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2022-11-20 12:33:23,440 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN/data/a7d5f8e3e/50683177a269466885710b027d16812b/FLAG23e201bae [2022-11-20 12:33:23,465 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN/data/a7d5f8e3e/50683177a269466885710b027d16812b [2022-11-20 12:33:23,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:33:23,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:33:23,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:33:23,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:33:23,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:33:23,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:33:23" (1/1) ... [2022-11-20 12:33:23,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecfbdf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:23, skipping insertion in model container [2022-11-20 12:33:23,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:33:23" (1/1) ... [2022-11-20 12:33:23,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:33:23,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:33:24,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:33:24,175 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:33:24,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:33:24,312 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:33:24,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24 WrapperNode [2022-11-20 12:33:24,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:33:24,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:33:24,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:33:24,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:33:24,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (1/1) ... [2022-11-20 12:33:24,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (1/1) ... [2022-11-20 12:33:24,367 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2022-11-20 12:33:24,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:33:24,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:33:24,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:33:24,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:33:24,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (1/1) ... [2022-11-20 12:33:24,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (1/1) ... [2022-11-20 12:33:24,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (1/1) ... [2022-11-20 12:33:24,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (1/1) ... [2022-11-20 12:33:24,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (1/1) ... [2022-11-20 12:33:24,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (1/1) ... [2022-11-20 12:33:24,415 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (1/1) ... [2022-11-20 12:33:24,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (1/1) ... [2022-11-20 12:33:24,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:33:24,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:33:24,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:33:24,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:33:24,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (1/1) ... [2022-11-20 12:33:24,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:33:24,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:33:24,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:33:24,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:33:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:33:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:33:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:33:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:33:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:33:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:33:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 12:33:24,528 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 12:33:24,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:33:24,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:33:24,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:33:24,536 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 12:33:24,775 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:33:24,777 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:33:25,113 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:33:25,122 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:33:25,122 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:33:25,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:25 BoogieIcfgContainer [2022-11-20 12:33:25,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:33:25,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:33:25,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:33:25,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:33:25,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:33:23" (1/3) ... [2022-11-20 12:33:25,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a30314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:33:25, skipping insertion in model container [2022-11-20 12:33:25,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:24" (2/3) ... [2022-11-20 12:33:25,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a30314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:33:25, skipping insertion in model container [2022-11-20 12:33:25,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:25" (3/3) ... [2022-11-20 12:33:25,155 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_51-mutex_ptr.i [2022-11-20 12:33:25,167 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:33:25,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:33:25,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 12:33:25,181 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:33:25,304 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 12:33:25,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 74 transitions, 156 flow [2022-11-20 12:33:25,458 INFO L130 PetriNetUnfolder]: 0/73 cut-off events. [2022-11-20 12:33:25,458 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:33:25,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 0/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-20 12:33:25,465 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 74 transitions, 156 flow [2022-11-20 12:33:25,473 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 65 transitions, 133 flow [2022-11-20 12:33:25,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:33:25,504 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;@d1cbf35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:33:25,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 12:33:25,544 INFO L130 PetriNetUnfolder]: 0/47 cut-off events. [2022-11-20 12:33:25,544 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:33:25,545 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:25,546 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:25,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:33:25,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:25,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1359327265, now seen corresponding path program 1 times [2022-11-20 12:33:25,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:25,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466411852] [2022-11-20 12:33:25,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:25,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:26,320 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 12:33:26,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:26,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466411852] [2022-11-20 12:33:26,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466411852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:26,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:26,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:33:26,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862317183] [2022-11-20 12:33:26,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:26,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:33:26,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:26,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:33:26,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:33:26,384 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 74 [2022-11-20 12:33:26,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 133 flow. Second operand has 8 states, 8 states have (on average 49.75) internal successors, (398), 8 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:26,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:26,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 74 [2022-11-20 12:33:26,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:26,754 INFO L130 PetriNetUnfolder]: 18/124 cut-off events. [2022-11-20 12:33:26,754 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:33:26,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 124 events. 18/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 330 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 140. Up to 23 conditions per place. [2022-11-20 12:33:26,760 INFO L137 encePairwiseOnDemand]: 64/74 looper letters, 23 selfloop transitions, 8 changer transitions 9/82 dead transitions. [2022-11-20 12:33:26,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 82 transitions, 247 flow [2022-11-20 12:33:26,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:33:26,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 12:33:26,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 428 transitions. [2022-11-20 12:33:26,788 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.722972972972973 [2022-11-20 12:33:26,789 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 428 transitions. [2022-11-20 12:33:26,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 428 transitions. [2022-11-20 12:33:26,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:26,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 428 transitions. [2022-11-20 12:33:26,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 53.5) internal successors, (428), 8 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:26,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:26,812 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:26,814 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 133 flow. Second operand 8 states and 428 transitions. [2022-11-20 12:33:26,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 82 transitions, 247 flow [2022-11-20 12:33:26,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 82 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:33:26,832 INFO L231 Difference]: Finished difference. Result has 78 places, 66 transitions, 167 flow [2022-11-20 12:33:26,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=167, PETRI_PLACES=78, PETRI_TRANSITIONS=66} [2022-11-20 12:33:26,841 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 9 predicate places. [2022-11-20 12:33:26,841 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 66 transitions, 167 flow [2022-11-20 12:33:26,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 49.75) internal successors, (398), 8 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:26,842 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:26,843 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:26,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:33:26,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:33:26,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:26,845 INFO L85 PathProgramCache]: Analyzing trace with hash 65120634, now seen corresponding path program 1 times [2022-11-20 12:33:26,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:26,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732565877] [2022-11-20 12:33:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:26,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:27,254 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 12:33:27,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:27,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732565877] [2022-11-20 12:33:27,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732565877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:27,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:27,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:33:27,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797516237] [2022-11-20 12:33:27,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:27,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:33:27,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:27,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:33:27,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:33:27,268 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 74 [2022-11-20 12:33:27,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 66 transitions, 167 flow. Second operand has 9 states, 9 states have (on average 49.666666666666664) internal successors, (447), 9 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:27,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:27,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 74 [2022-11-20 12:33:27,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:27,596 INFO L130 PetriNetUnfolder]: 16/119 cut-off events. [2022-11-20 12:33:27,596 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-11-20 12:33:27,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 119 events. 16/119 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 332 event pairs, 5 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 171. Up to 25 conditions per place. [2022-11-20 12:33:27,599 INFO L137 encePairwiseOnDemand]: 63/74 looper letters, 20 selfloop transitions, 10 changer transitions 6/78 dead transitions. [2022-11-20 12:33:27,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 78 transitions, 281 flow [2022-11-20 12:33:27,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:33:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 12:33:27,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 472 transitions. [2022-11-20 12:33:27,607 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7087087087087087 [2022-11-20 12:33:27,608 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 472 transitions. [2022-11-20 12:33:27,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 472 transitions. [2022-11-20 12:33:27,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:27,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 472 transitions. [2022-11-20 12:33:27,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 52.44444444444444) internal successors, (472), 9 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:27,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:27,617 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:27,617 INFO L175 Difference]: Start difference. First operand has 78 places, 66 transitions, 167 flow. Second operand 9 states and 472 transitions. [2022-11-20 12:33:27,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 78 transitions, 281 flow [2022-11-20 12:33:27,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 78 transitions, 260 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-11-20 12:33:27,622 INFO L231 Difference]: Finished difference. Result has 84 places, 69 transitions, 200 flow [2022-11-20 12:33:27,622 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=200, PETRI_PLACES=84, PETRI_TRANSITIONS=69} [2022-11-20 12:33:27,623 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 15 predicate places. [2022-11-20 12:33:27,624 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 69 transitions, 200 flow [2022-11-20 12:33:27,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 49.666666666666664) internal successors, (447), 9 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:27,624 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:27,625 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:27,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:33:27,625 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:33:27,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:27,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1991828199, now seen corresponding path program 1 times [2022-11-20 12:33:27,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:27,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175132187] [2022-11-20 12:33:27,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:27,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:27,727 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 12:33:27,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:27,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175132187] [2022-11-20 12:33:27,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175132187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:27,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:27,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:33:27,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200903986] [2022-11-20 12:33:27,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:27,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:27,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:27,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:27,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:27,730 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 74 [2022-11-20 12:33:27,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 69 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:27,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:27,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 74 [2022-11-20 12:33:27,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:27,770 INFO L130 PetriNetUnfolder]: 6/105 cut-off events. [2022-11-20 12:33:27,770 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-20 12:33:27,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 105 events. 6/105 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 195 event pairs, 3 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 131. Up to 15 conditions per place. [2022-11-20 12:33:27,772 INFO L137 encePairwiseOnDemand]: 70/74 looper letters, 7 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2022-11-20 12:33:27,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 71 transitions, 226 flow [2022-11-20 12:33:27,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:27,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:27,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2022-11-20 12:33:27,773 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9234234234234234 [2022-11-20 12:33:27,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 205 transitions. [2022-11-20 12:33:27,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions. [2022-11-20 12:33:27,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:27,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions. [2022-11-20 12:33:27,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:27,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:27,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:27,776 INFO L175 Difference]: Start difference. First operand has 84 places, 69 transitions, 200 flow. Second operand 3 states and 205 transitions. [2022-11-20 12:33:27,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 71 transitions, 226 flow [2022-11-20 12:33:27,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 71 transitions, 208 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-11-20 12:33:27,779 INFO L231 Difference]: Finished difference. Result has 80 places, 69 transitions, 190 flow [2022-11-20 12:33:27,780 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=80, PETRI_TRANSITIONS=69} [2022-11-20 12:33:27,781 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 11 predicate places. [2022-11-20 12:33:27,781 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 69 transitions, 190 flow [2022-11-20 12:33:27,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:27,781 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:27,782 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:27,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:33:27,782 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:33:27,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:27,783 INFO L85 PathProgramCache]: Analyzing trace with hash 913948791, now seen corresponding path program 1 times [2022-11-20 12:33:27,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:27,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881256043] [2022-11-20 12:33:27,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:27,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:28,312 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 12:33:28,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:28,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881256043] [2022-11-20 12:33:28,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881256043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:28,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:28,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:33:28,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516210470] [2022-11-20 12:33:28,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:28,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:33:28,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:28,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:33:28,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:33:28,318 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-11-20 12:33:28,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 69 transitions, 190 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:28,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:28,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-11-20 12:33:28,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:28,743 INFO L130 PetriNetUnfolder]: 14/121 cut-off events. [2022-11-20 12:33:28,744 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-20 12:33:28,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 121 events. 14/121 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 278 event pairs, 4 based on Foata normal form. 2/121 useless extension candidates. Maximal degree in co-relation 194. Up to 28 conditions per place. [2022-11-20 12:33:28,745 INFO L137 encePairwiseOnDemand]: 61/74 looper letters, 32 selfloop transitions, 15 changer transitions 3/87 dead transitions. [2022-11-20 12:33:28,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 87 transitions, 338 flow [2022-11-20 12:33:28,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:33:28,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 12:33:28,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 610 transitions. [2022-11-20 12:33:28,749 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6340956340956341 [2022-11-20 12:33:28,749 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 610 transitions. [2022-11-20 12:33:28,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 610 transitions. [2022-11-20 12:33:28,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:28,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 610 transitions. [2022-11-20 12:33:28,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 46.92307692307692) internal successors, (610), 13 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:28,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:28,755 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:28,755 INFO L175 Difference]: Start difference. First operand has 80 places, 69 transitions, 190 flow. Second operand 13 states and 610 transitions. [2022-11-20 12:33:28,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 87 transitions, 338 flow [2022-11-20 12:33:28,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 87 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:33:28,759 INFO L231 Difference]: Finished difference. Result has 96 places, 74 transitions, 263 flow [2022-11-20 12:33:28,760 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=263, PETRI_PLACES=96, PETRI_TRANSITIONS=74} [2022-11-20 12:33:28,761 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 27 predicate places. [2022-11-20 12:33:28,761 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 74 transitions, 263 flow [2022-11-20 12:33:28,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:28,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:28,762 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:28,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:33:28,763 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:33:28,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:28,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1702926921, now seen corresponding path program 2 times [2022-11-20 12:33:28,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:28,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181490713] [2022-11-20 12:33:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:28,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:29,098 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 12:33:29,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:29,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181490713] [2022-11-20 12:33:29,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181490713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:29,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:29,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:33:29,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548956326] [2022-11-20 12:33:29,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:29,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:33:29,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:29,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:33:29,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:33:29,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-11-20 12:33:29,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 74 transitions, 263 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:29,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:29,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-11-20 12:33:29,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:29,521 INFO L130 PetriNetUnfolder]: 17/142 cut-off events. [2022-11-20 12:33:29,521 INFO L131 PetriNetUnfolder]: For 120/122 co-relation queries the response was YES. [2022-11-20 12:33:29,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 142 events. 17/142 cut-off events. For 120/122 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 391 event pairs, 5 based on Foata normal form. 4/144 useless extension candidates. Maximal degree in co-relation 280. Up to 25 conditions per place. [2022-11-20 12:33:29,523 INFO L137 encePairwiseOnDemand]: 61/74 looper letters, 31 selfloop transitions, 22 changer transitions 3/93 dead transitions. [2022-11-20 12:33:29,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 93 transitions, 435 flow [2022-11-20 12:33:29,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 12:33:29,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 12:33:29,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 829 transitions. [2022-11-20 12:33:29,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6223723723723724 [2022-11-20 12:33:29,527 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 829 transitions. [2022-11-20 12:33:29,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 829 transitions. [2022-11-20 12:33:29,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:29,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 829 transitions. [2022-11-20 12:33:29,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 46.05555555555556) internal successors, (829), 18 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:29,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 74.0) internal successors, (1406), 19 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:29,534 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 74.0) internal successors, (1406), 19 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:29,534 INFO L175 Difference]: Start difference. First operand has 96 places, 74 transitions, 263 flow. Second operand 18 states and 829 transitions. [2022-11-20 12:33:29,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 93 transitions, 435 flow [2022-11-20 12:33:29,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 93 transitions, 413 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-11-20 12:33:29,539 INFO L231 Difference]: Finished difference. Result has 110 places, 80 transitions, 342 flow [2022-11-20 12:33:29,540 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=342, PETRI_PLACES=110, PETRI_TRANSITIONS=80} [2022-11-20 12:33:29,540 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 41 predicate places. [2022-11-20 12:33:29,541 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 80 transitions, 342 flow [2022-11-20 12:33:29,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:29,541 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:29,542 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:29,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:33:29,542 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:33:29,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:29,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1831030184, now seen corresponding path program 1 times [2022-11-20 12:33:29,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:29,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144945399] [2022-11-20 12:33:29,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:29,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:29,896 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 12:33:29,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:29,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144945399] [2022-11-20 12:33:29,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144945399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:29,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:29,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:33:29,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488170727] [2022-11-20 12:33:29,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:29,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:33:29,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:29,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:33:29,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:33:29,900 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-11-20 12:33:29,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 80 transitions, 342 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:29,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:29,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-11-20 12:33:29,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:30,244 INFO L130 PetriNetUnfolder]: 17/141 cut-off events. [2022-11-20 12:33:30,244 INFO L131 PetriNetUnfolder]: For 178/180 co-relation queries the response was YES. [2022-11-20 12:33:30,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 141 events. 17/141 cut-off events. For 178/180 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 382 event pairs, 14 based on Foata normal form. 3/142 useless extension candidates. Maximal degree in co-relation 302. Up to 50 conditions per place. [2022-11-20 12:33:30,248 INFO L137 encePairwiseOnDemand]: 62/74 looper letters, 27 selfloop transitions, 19 changer transitions 2/85 dead transitions. [2022-11-20 12:33:30,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 85 transitions, 446 flow [2022-11-20 12:33:30,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:33:30,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-20 12:33:30,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 643 transitions. [2022-11-20 12:33:30,251 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6206563706563707 [2022-11-20 12:33:30,252 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 643 transitions. [2022-11-20 12:33:30,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 643 transitions. [2022-11-20 12:33:30,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:30,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 643 transitions. [2022-11-20 12:33:30,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 45.92857142857143) internal successors, (643), 14 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:30,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:30,259 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:30,259 INFO L175 Difference]: Start difference. First operand has 110 places, 80 transitions, 342 flow. Second operand 14 states and 643 transitions. [2022-11-20 12:33:30,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 85 transitions, 446 flow [2022-11-20 12:33:30,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 85 transitions, 383 flow, removed 8 selfloop flow, removed 15 redundant places. [2022-11-20 12:33:30,267 INFO L231 Difference]: Finished difference. Result has 107 places, 79 transitions, 313 flow [2022-11-20 12:33:30,267 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=313, PETRI_PLACES=107, PETRI_TRANSITIONS=79} [2022-11-20 12:33:30,270 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 38 predicate places. [2022-11-20 12:33:30,271 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 79 transitions, 313 flow [2022-11-20 12:33:30,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:30,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:30,272 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:30,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:33:30,272 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:33:30,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:30,273 INFO L85 PathProgramCache]: Analyzing trace with hash 71804731, now seen corresponding path program 3 times [2022-11-20 12:33:30,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:30,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476332140] [2022-11-20 12:33:30,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:30,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:30,561 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 12:33:30,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:30,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476332140] [2022-11-20 12:33:30,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476332140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:30,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:30,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:33:30,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024479891] [2022-11-20 12:33:30,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:30,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:33:30,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:30,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:33:30,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:33:30,565 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-11-20 12:33:30,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 79 transitions, 313 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:30,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:30,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-11-20 12:33:30,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:30,893 INFO L130 PetriNetUnfolder]: 16/135 cut-off events. [2022-11-20 12:33:30,893 INFO L131 PetriNetUnfolder]: For 116/118 co-relation queries the response was YES. [2022-11-20 12:33:30,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 135 events. 16/135 cut-off events. For 116/118 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 342 event pairs, 0 based on Foata normal form. 4/136 useless extension candidates. Maximal degree in co-relation 267. Up to 36 conditions per place. [2022-11-20 12:33:30,894 INFO L137 encePairwiseOnDemand]: 62/74 looper letters, 24 selfloop transitions, 23 changer transitions 2/86 dead transitions. [2022-11-20 12:33:30,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 86 transitions, 421 flow [2022-11-20 12:33:30,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:33:30,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-20 12:33:30,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 731 transitions. [2022-11-20 12:33:30,898 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6173986486486487 [2022-11-20 12:33:30,898 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 731 transitions. [2022-11-20 12:33:30,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 731 transitions. [2022-11-20 12:33:30,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:30,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 731 transitions. [2022-11-20 12:33:30,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 45.6875) internal successors, (731), 16 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:30,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 74.0) internal successors, (1258), 17 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:30,904 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 74.0) internal successors, (1258), 17 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:30,904 INFO L175 Difference]: Start difference. First operand has 107 places, 79 transitions, 313 flow. Second operand 16 states and 731 transitions. [2022-11-20 12:33:30,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 86 transitions, 421 flow [2022-11-20 12:33:30,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 86 transitions, 374 flow, removed 3 selfloop flow, removed 13 redundant places. [2022-11-20 12:33:30,911 INFO L231 Difference]: Finished difference. Result has 108 places, 78 transitions, 306 flow [2022-11-20 12:33:30,912 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=306, PETRI_PLACES=108, PETRI_TRANSITIONS=78} [2022-11-20 12:33:30,913 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 39 predicate places. [2022-11-20 12:33:30,913 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 78 transitions, 306 flow [2022-11-20 12:33:30,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:30,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:30,914 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:30,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:33:30,915 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:33:30,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:30,916 INFO L85 PathProgramCache]: Analyzing trace with hash 750311741, now seen corresponding path program 1 times [2022-11-20 12:33:30,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:30,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835811824] [2022-11-20 12:33:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:30,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:31,107 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 12:33:31,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:31,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835811824] [2022-11-20 12:33:31,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835811824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:31,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:31,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:33:31,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077203493] [2022-11-20 12:33:31,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:31,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:33:31,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:31,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:33:31,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:33:31,110 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-11-20 12:33:31,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 78 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:31,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-11-20 12:33:31,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:31,221 INFO L130 PetriNetUnfolder]: 17/147 cut-off events. [2022-11-20 12:33:31,222 INFO L131 PetriNetUnfolder]: For 129/131 co-relation queries the response was YES. [2022-11-20 12:33:31,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 147 events. 17/147 cut-off events. For 129/131 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 436 event pairs, 8 based on Foata normal form. 6/149 useless extension candidates. Maximal degree in co-relation 322. Up to 47 conditions per place. [2022-11-20 12:33:31,223 INFO L137 encePairwiseOnDemand]: 68/74 looper letters, 32 selfloop transitions, 4 changer transitions 12/87 dead transitions. [2022-11-20 12:33:31,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 87 transitions, 434 flow [2022-11-20 12:33:31,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:33:31,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 12:33:31,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 367 transitions. [2022-11-20 12:33:31,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7084942084942085 [2022-11-20 12:33:31,226 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 367 transitions. [2022-11-20 12:33:31,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 367 transitions. [2022-11-20 12:33:31,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:31,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 367 transitions. [2022-11-20 12:33:31,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,229 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,229 INFO L175 Difference]: Start difference. First operand has 108 places, 78 transitions, 306 flow. Second operand 7 states and 367 transitions. [2022-11-20 12:33:31,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 87 transitions, 434 flow [2022-11-20 12:33:31,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 87 transitions, 368 flow, removed 3 selfloop flow, removed 17 redundant places. [2022-11-20 12:33:31,233 INFO L231 Difference]: Finished difference. Result has 102 places, 73 transitions, 235 flow [2022-11-20 12:33:31,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=235, PETRI_PLACES=102, PETRI_TRANSITIONS=73} [2022-11-20 12:33:31,236 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 33 predicate places. [2022-11-20 12:33:31,237 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 73 transitions, 235 flow [2022-11-20 12:33:31,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,237 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:31,237 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:31,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:33:31,238 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:33:31,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:31,239 INFO L85 PathProgramCache]: Analyzing trace with hash 634072983, now seen corresponding path program 1 times [2022-11-20 12:33:31,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:31,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360776109] [2022-11-20 12:33:31,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:31,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:31,410 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 12:33:31,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:31,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360776109] [2022-11-20 12:33:31,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360776109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:31,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:31,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:33:31,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798055037] [2022-11-20 12:33:31,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:31,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:33:31,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:31,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:33:31,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:33:31,414 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-11-20 12:33:31,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 73 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:31,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-11-20 12:33:31,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:31,520 INFO L130 PetriNetUnfolder]: 11/111 cut-off events. [2022-11-20 12:33:31,520 INFO L131 PetriNetUnfolder]: For 80/81 co-relation queries the response was YES. [2022-11-20 12:33:31,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 111 events. 11/111 cut-off events. For 80/81 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 223 event pairs, 6 based on Foata normal form. 2/111 useless extension candidates. Maximal degree in co-relation 224. Up to 33 conditions per place. [2022-11-20 12:33:31,522 INFO L137 encePairwiseOnDemand]: 66/74 looper letters, 23 selfloop transitions, 5 changer transitions 12/76 dead transitions. [2022-11-20 12:33:31,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 76 transitions, 313 flow [2022-11-20 12:33:31,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:33:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 12:33:31,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 407 transitions. [2022-11-20 12:33:31,524 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6875 [2022-11-20 12:33:31,524 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 407 transitions. [2022-11-20 12:33:31,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 407 transitions. [2022-11-20 12:33:31,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:31,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 407 transitions. [2022-11-20 12:33:31,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 50.875) internal successors, (407), 8 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,528 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,528 INFO L175 Difference]: Start difference. First operand has 102 places, 73 transitions, 235 flow. Second operand 8 states and 407 transitions. [2022-11-20 12:33:31,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 76 transitions, 313 flow [2022-11-20 12:33:31,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 76 transitions, 296 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-11-20 12:33:31,531 INFO L231 Difference]: Finished difference. Result has 93 places, 63 transitions, 192 flow [2022-11-20 12:33:31,531 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=192, PETRI_PLACES=93, PETRI_TRANSITIONS=63} [2022-11-20 12:33:31,532 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 24 predicate places. [2022-11-20 12:33:31,532 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 63 transitions, 192 flow [2022-11-20 12:33:31,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,533 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:31,533 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:31,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:33:31,534 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:33:31,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:31,534 INFO L85 PathProgramCache]: Analyzing trace with hash -635711641, now seen corresponding path program 2 times [2022-11-20 12:33:31,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:31,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645399558] [2022-11-20 12:33:31,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:31,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:31,680 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 12:33:31,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:31,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645399558] [2022-11-20 12:33:31,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645399558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:31,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:31,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:33:31,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030705137] [2022-11-20 12:33:31,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:31,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:33:31,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:31,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:33:31,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:33:31,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-11-20 12:33:31,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 63 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:31,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-11-20 12:33:31,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:31,792 INFO L130 PetriNetUnfolder]: 8/86 cut-off events. [2022-11-20 12:33:31,792 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-20 12:33:31,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 86 events. 8/86 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 4 based on Foata normal form. 2/86 useless extension candidates. Maximal degree in co-relation 128. Up to 31 conditions per place. [2022-11-20 12:33:31,793 INFO L137 encePairwiseOnDemand]: 68/74 looper letters, 18 selfloop transitions, 4 changer transitions 8/66 dead transitions. [2022-11-20 12:33:31,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 66 transitions, 261 flow [2022-11-20 12:33:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:33:31,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 12:33:31,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 358 transitions. [2022-11-20 12:33:31,796 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6911196911196911 [2022-11-20 12:33:31,797 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 358 transitions. [2022-11-20 12:33:31,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 358 transitions. [2022-11-20 12:33:31,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:31,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 358 transitions. [2022-11-20 12:33:31,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 51.142857142857146) internal successors, (358), 7 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,801 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,801 INFO L175 Difference]: Start difference. First operand has 93 places, 63 transitions, 192 flow. Second operand 7 states and 358 transitions. [2022-11-20 12:33:31,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 66 transitions, 261 flow [2022-11-20 12:33:31,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 66 transitions, 236 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 12:33:31,803 INFO L231 Difference]: Finished difference. Result has 79 places, 58 transitions, 151 flow [2022-11-20 12:33:31,805 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=151, PETRI_PLACES=79, PETRI_TRANSITIONS=58} [2022-11-20 12:33:31,805 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 10 predicate places. [2022-11-20 12:33:31,807 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 58 transitions, 151 flow [2022-11-20 12:33:31,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:31,808 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:31,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:33:31,809 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:33:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:31,810 INFO L85 PathProgramCache]: Analyzing trace with hash 23777309, now seen corresponding path program 3 times [2022-11-20 12:33:31,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:31,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327777502] [2022-11-20 12:33:31,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:31,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:31,975 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 12:33:31,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:31,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327777502] [2022-11-20 12:33:31,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327777502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:31,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:31,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:33:31,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700348042] [2022-11-20 12:33:31,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:31,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:33:31,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:31,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:33:31,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:33:31,980 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-11-20 12:33:31,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 58 transitions, 151 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:31,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:31,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-11-20 12:33:31,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:32,079 INFO L130 PetriNetUnfolder]: 4/67 cut-off events. [2022-11-20 12:33:32,080 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-20 12:33:32,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 67 events. 4/67 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 2/69 useless extension candidates. Maximal degree in co-relation 102. Up to 9 conditions per place. [2022-11-20 12:33:32,080 INFO L137 encePairwiseOnDemand]: 66/74 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2022-11-20 12:33:32,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 59 transitions, 198 flow [2022-11-20 12:33:32,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:33:32,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 12:33:32,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 400 transitions. [2022-11-20 12:33:32,085 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6756756756756757 [2022-11-20 12:33:32,085 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 400 transitions. [2022-11-20 12:33:32,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 400 transitions. [2022-11-20 12:33:32,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:32,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 400 transitions. [2022-11-20 12:33:32,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 50.0) internal successors, (400), 8 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:32,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:32,091 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:32,091 INFO L175 Difference]: Start difference. First operand has 79 places, 58 transitions, 151 flow. Second operand 8 states and 400 transitions. [2022-11-20 12:33:32,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 59 transitions, 198 flow [2022-11-20 12:33:32,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 59 transitions, 178 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-11-20 12:33:32,092 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2022-11-20 12:33:32,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2022-11-20 12:33:32,093 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 2 predicate places. [2022-11-20 12:33:32,093 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2022-11-20 12:33:32,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:33:32,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-20 12:33:32,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-20 12:33:32,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-20 12:33:32,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-20 12:33:32,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-20 12:33:32,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-20 12:33:32,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-20 12:33:32,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:33:32,098 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1] [2022-11-20 12:33:32,104 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:33:32,104 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:33:32,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:33:32 BasicIcfg [2022-11-20 12:33:32,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:33:32,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:33:32,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:33:32,111 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:33:32,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:25" (3/4) ... [2022-11-20 12:33:32,114 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:33:32,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 12:33:32,127 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 12:33:32,127 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 12:33:32,128 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:33:32,169 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:33:32,169 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:33:32,169 INFO L158 Benchmark]: Toolchain (without parser) took 8694.88ms. Allocated memory was 182.5MB in the beginning and 268.4MB in the end (delta: 86.0MB). Free memory was 145.2MB in the beginning and 183.0MB in the end (delta: -37.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-20 12:33:32,170 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:33:32,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 831.68ms. Allocated memory is still 182.5MB. Free memory was 144.4MB in the beginning and 128.1MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:33:32,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.68ms. Allocated memory is still 182.5MB. Free memory was 128.1MB in the beginning and 125.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:33:32,171 INFO L158 Benchmark]: Boogie Preprocessor took 50.74ms. Allocated memory is still 182.5MB. Free memory was 125.5MB in the beginning and 123.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:33:32,171 INFO L158 Benchmark]: RCFGBuilder took 705.42ms. Allocated memory is still 182.5MB. Free memory was 123.9MB in the beginning and 110.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:33:32,172 INFO L158 Benchmark]: TraceAbstraction took 6981.86ms. Allocated memory was 182.5MB in the beginning and 268.4MB in the end (delta: 86.0MB). Free memory was 109.2MB in the beginning and 185.1MB in the end (delta: -75.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-11-20 12:33:32,172 INFO L158 Benchmark]: Witness Printer took 58.01ms. Allocated memory is still 268.4MB. Free memory was 185.1MB in the beginning and 183.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:33:32,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 831.68ms. Allocated memory is still 182.5MB. Free memory was 144.4MB in the beginning and 128.1MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.68ms. Allocated memory is still 182.5MB. Free memory was 128.1MB in the beginning and 125.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.74ms. Allocated memory is still 182.5MB. Free memory was 125.5MB in the beginning and 123.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 705.42ms. Allocated memory is still 182.5MB. Free memory was 123.9MB in the beginning and 110.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6981.86ms. Allocated memory was 182.5MB in the beginning and 268.4MB in the end (delta: 86.0MB). Free memory was 109.2MB in the beginning and 185.1MB in the end (delta: -75.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Witness Printer took 58.01ms. Allocated memory is still 268.4MB. Free memory was 185.1MB in the beginning and 183.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 926]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 926]: 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, 93 locations, 7 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: 6.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 744 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 744 mSDsluCounter, 456 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 326 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 943 IncrementalHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 130 mSDtfsCounter, 943 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342occurred in iteration=5, InterpolantAutomatonStates: 111, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 573 NumberOfCodeBlocks, 573 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 562 ConstructedInterpolants, 0 QuantifiedInterpolants, 3255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:33:32,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd2665b-e4b9-4190-89f2-52d853215c24/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