./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_08-cond_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_08-cond_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8 --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 b4439281d7e12bca3fd2bd39ebda4196e341f38fedf1c370a96bdabb4944cfe7 --- 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-e04fb08 [2022-11-16 12:38:41,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:38:41,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:38:41,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:38:41,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:38:41,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:38:41,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:38:41,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:38:41,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:38:41,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:38:41,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:38:41,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:38:41,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:38:41,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:38:41,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:38:41,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:38:41,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:38:41,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:38:41,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:38:41,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:38:41,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:38:41,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:38:41,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:38:41,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:38:41,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:38:41,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:38:41,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:38:41,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:38:41,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:38:41,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:38:41,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:38:41,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:38:41,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:38:41,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:38:41,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:38:41,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:38:41,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:38:41,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:38:41,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:38:41,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:38:41,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:38:41,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:38:41,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:38:41,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:38:41,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:38:41,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:38:41,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:38:41,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:38:41,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:38:41,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:38:41,483 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:38:41,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:38:41,485 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:38:41,485 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:38:41,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:38:41,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:38:41,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:38:41,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:38:41,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:38:41,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:38:41,487 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:38:41,488 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:38:41,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:38:41,488 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:38:41,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:38:41,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:38:41,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:38:41,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:38:41,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:38:41,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:38:41,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:38:41,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:38:41,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:38:41,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:38:41,492 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:38:41,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:38:41,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:38:41,493 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_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4439281d7e12bca3fd2bd39ebda4196e341f38fedf1c370a96bdabb4944cfe7 [2022-11-16 12:38:41,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:38:41,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:38:41,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:38:41,892 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:38:41,893 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:38:41,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_08-cond_racefree.i [2022-11-16 12:38:41,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/data/eff039114/849b15edfbaf487589332a0f3c97e10c/FLAGc3e969479 [2022-11-16 12:38:42,734 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:38:42,735 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/sv-benchmarks/c/goblint-regression/28-race_reach_08-cond_racefree.i [2022-11-16 12:38:42,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/data/eff039114/849b15edfbaf487589332a0f3c97e10c/FLAGc3e969479 [2022-11-16 12:38:42,917 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/data/eff039114/849b15edfbaf487589332a0f3c97e10c [2022-11-16 12:38:42,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:38:42,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:38:42,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:38:42,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:38:42,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:38:42,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:42" (1/1) ... [2022-11-16 12:38:42,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7accff6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:42, skipping insertion in model container [2022-11-16 12:38:42,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:42" (1/1) ... [2022-11-16 12:38:42,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:38:43,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:38:43,722 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/sv-benchmarks/c/goblint-regression/28-race_reach_08-cond_racefree.i[41322,41335] [2022-11-16 12:38:43,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:38:43,765 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:38:43,808 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/sv-benchmarks/c/goblint-regression/28-race_reach_08-cond_racefree.i[41322,41335] [2022-11-16 12:38:43,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:38:43,898 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:38:43,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43 WrapperNode [2022-11-16 12:38:43,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:38:43,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:38:43,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:38:43,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:38:43,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 12:38:43,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 12:38:43,998 INFO L138 Inliner]: procedures = 270, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2022-11-16 12:38:44,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:38:44,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:38:44,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:38:44,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:38:44,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 12:38:44,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 12:38:44,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 12:38:44,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 12:38:44,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 12:38:44,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 12:38:44,054 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 12:38:44,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 12:38:44,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:38:44,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:38:44,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:38:44,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:38:44,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 12:38:44,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:38:44,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:44,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:38:44,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:38:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:38:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:38:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:38:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:38:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:38:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:38:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:38:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:38:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:38:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:38:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:38:44,172 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:38:44,428 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:38:44,431 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:38:44,769 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:38:44,778 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:38:44,779 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-16 12:38:44,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:44 BoogieIcfgContainer [2022-11-16 12:38:44,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:38:44,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:38:44,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:38:44,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:38:44,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:38:42" (1/3) ... [2022-11-16 12:38:44,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b88da1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:44, skipping insertion in model container [2022-11-16 12:38:44,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (2/3) ... [2022-11-16 12:38:44,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b88da1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:44, skipping insertion in model container [2022-11-16 12:38:44,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:44" (3/3) ... [2022-11-16 12:38:44,799 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_08-cond_racefree.i [2022-11-16 12:38:44,810 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:38:44,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:38:44,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 12:38:44,823 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:38:44,924 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 12:38:44,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 144 transitions, 296 flow [2022-11-16 12:38:45,066 INFO L130 PetriNetUnfolder]: 23/188 cut-off events. [2022-11-16 12:38:45,067 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:38:45,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 188 events. 23/188 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 420 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 89. Up to 6 conditions per place. [2022-11-16 12:38:45,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 144 transitions, 296 flow [2022-11-16 12:38:45,084 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 141 transitions, 290 flow [2022-11-16 12:38:45,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:38:45,119 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;@58fc8167, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:38:45,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-16 12:38:45,147 INFO L130 PetriNetUnfolder]: 5/80 cut-off events. [2022-11-16 12:38:45,147 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:38:45,148 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:45,149 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] [2022-11-16 12:38:45,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:38:45,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:45,156 INFO L85 PathProgramCache]: Analyzing trace with hash -505390769, now seen corresponding path program 1 times [2022-11-16 12:38:45,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:45,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677998245] [2022-11-16 12:38:45,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:45,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:45,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:45,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677998245] [2022-11-16 12:38:45,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677998245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:45,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:45,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:38:45,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621302913] [2022-11-16 12:38:45,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:45,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:38:45,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:45,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:38:45,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:38:45,878 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2022-11-16 12:38:45,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 141 transitions, 290 flow. Second operand has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:45,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:45,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2022-11-16 12:38:45,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:46,026 INFO L130 PetriNetUnfolder]: 3/131 cut-off events. [2022-11-16 12:38:46,026 INFO L131 PetriNetUnfolder]: For 3/12 co-relation queries the response was YES. [2022-11-16 12:38:46,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 131 events. 3/131 cut-off events. For 3/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 160 event pairs, 0 based on Foata normal form. 41/161 useless extension candidates. Maximal degree in co-relation 83. Up to 7 conditions per place. [2022-11-16 12:38:46,030 INFO L137 encePairwiseOnDemand]: 126/144 looper letters, 10 selfloop transitions, 4 changer transitions 0/129 dead transitions. [2022-11-16 12:38:46,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 129 transitions, 294 flow [2022-11-16 12:38:46,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:38:46,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:38:46,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2022-11-16 12:38:46,061 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8847222222222222 [2022-11-16 12:38:46,062 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2022-11-16 12:38:46,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2022-11-16 12:38:46,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:46,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2022-11-16 12:38:46,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:46,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:46,097 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:46,100 INFO L175 Difference]: Start difference. First operand has 130 places, 141 transitions, 290 flow. Second operand 5 states and 637 transitions. [2022-11-16 12:38:46,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 129 transitions, 294 flow [2022-11-16 12:38:46,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 129 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:38:46,109 INFO L231 Difference]: Finished difference. Result has 132 places, 127 transitions, 274 flow [2022-11-16 12:38:46,113 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=274, PETRI_PLACES=132, PETRI_TRANSITIONS=127} [2022-11-16 12:38:46,123 INFO L288 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2022-11-16 12:38:46,124 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 127 transitions, 274 flow [2022-11-16 12:38:46,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:46,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:46,125 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:46,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:38:46,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:38:46,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash -438317534, now seen corresponding path program 1 times [2022-11-16 12:38:46,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:46,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047055821] [2022-11-16 12:38:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:46,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:46,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:46,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:46,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047055821] [2022-11-16 12:38:46,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047055821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:46,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:46,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:38:46,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969389369] [2022-11-16 12:38:46,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:46,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:38:46,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:46,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:38:46,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:38:46,358 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 144 [2022-11-16 12:38:46,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 127 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:46,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:46,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 144 [2022-11-16 12:38:46,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:46,436 INFO L130 PetriNetUnfolder]: 12/180 cut-off events. [2022-11-16 12:38:46,437 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2022-11-16 12:38:46,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 180 events. 12/180 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 441 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 152. Up to 12 conditions per place. [2022-11-16 12:38:46,439 INFO L137 encePairwiseOnDemand]: 138/144 looper letters, 10 selfloop transitions, 4 changer transitions 0/128 dead transitions. [2022-11-16 12:38:46,439 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 128 transitions, 304 flow [2022-11-16 12:38:46,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:38:46,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:38:46,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2022-11-16 12:38:46,443 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8486111111111111 [2022-11-16 12:38:46,444 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2022-11-16 12:38:46,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2022-11-16 12:38:46,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:46,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2022-11-16 12:38:46,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:46,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:46,451 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:46,452 INFO L175 Difference]: Start difference. First operand has 132 places, 127 transitions, 274 flow. Second operand 5 states and 611 transitions. [2022-11-16 12:38:46,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 128 transitions, 304 flow [2022-11-16 12:38:46,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 128 transitions, 296 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:38:46,456 INFO L231 Difference]: Finished difference. Result has 130 places, 125 transitions, 270 flow [2022-11-16 12:38:46,457 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=270, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2022-11-16 12:38:46,457 INFO L288 CegarLoopForPetriNet]: 130 programPoint places, 0 predicate places. [2022-11-16 12:38:46,458 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 270 flow [2022-11-16 12:38:46,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:46,459 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:46,459 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:46,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:38:46,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:38:46,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:46,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1343413294, now seen corresponding path program 1 times [2022-11-16 12:38:46,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:46,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836507884] [2022-11-16 12:38:46,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:46,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:38:46,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:38:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:38:46,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:38:46,539 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:38:46,541 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2022-11-16 12:38:46,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-11-16 12:38:46,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-11-16 12:38:46,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-11-16 12:38:46,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-11-16 12:38:46,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-11-16 12:38:46,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-11-16 12:38:46,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-11-16 12:38:46,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-11-16 12:38:46,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-11-16 12:38:46,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-11-16 12:38:46,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-11-16 12:38:46,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-11-16 12:38:46,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:38:46,549 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 12:38:46,553 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 12:38:46,553 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-16 12:38:46,604 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:38:46,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 182 transitions, 382 flow [2022-11-16 12:38:46,697 INFO L130 PetriNetUnfolder]: 40/307 cut-off events. [2022-11-16 12:38:46,697 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 12:38:46,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 307 events. 40/307 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 888 event pairs, 0 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 190. Up to 9 conditions per place. [2022-11-16 12:38:46,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 182 transitions, 382 flow [2022-11-16 12:38:46,709 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 182 transitions, 382 flow [2022-11-16 12:38:46,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:38:46,712 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;@58fc8167, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:38:46,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-16 12:38:46,722 INFO L130 PetriNetUnfolder]: 5/80 cut-off events. [2022-11-16 12:38:46,723 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:38:46,723 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:46,723 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] [2022-11-16 12:38:46,723 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-16 12:38:46,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:46,724 INFO L85 PathProgramCache]: Analyzing trace with hash 180795561, now seen corresponding path program 1 times [2022-11-16 12:38:46,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:46,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107414104] [2022-11-16 12:38:46,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:46,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:46,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:46,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107414104] [2022-11-16 12:38:46,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107414104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:46,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:46,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:38:46,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107540869] [2022-11-16 12:38:46,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:46,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:38:46,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:46,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:38:46,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:38:46,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 182 [2022-11-16 12:38:46,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 182 transitions, 382 flow. Second operand has 4 states, 4 states have (on average 149.75) internal successors, (599), 4 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:46,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:46,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 182 [2022-11-16 12:38:46,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:47,065 INFO L130 PetriNetUnfolder]: 8/249 cut-off events. [2022-11-16 12:38:47,065 INFO L131 PetriNetUnfolder]: For 45/125 co-relation queries the response was YES. [2022-11-16 12:38:47,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 249 events. 8/249 cut-off events. For 45/125 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 632 event pairs, 0 based on Foata normal form. 124/343 useless extension candidates. Maximal degree in co-relation 159. Up to 21 conditions per place. [2022-11-16 12:38:47,068 INFO L137 encePairwiseOnDemand]: 158/182 looper letters, 19 selfloop transitions, 4 changer transitions 0/171 dead transitions. [2022-11-16 12:38:47,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 171 transitions, 406 flow [2022-11-16 12:38:47,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:38:47,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:38:47,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 802 transitions. [2022-11-16 12:38:47,071 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8813186813186813 [2022-11-16 12:38:47,071 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 802 transitions. [2022-11-16 12:38:47,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 802 transitions. [2022-11-16 12:38:47,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:47,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 802 transitions. [2022-11-16 12:38:47,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 160.4) internal successors, (802), 5 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:47,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:47,078 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:47,078 INFO L175 Difference]: Start difference. First operand has 165 places, 182 transitions, 382 flow. Second operand 5 states and 802 transitions. [2022-11-16 12:38:47,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 171 transitions, 406 flow [2022-11-16 12:38:47,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 171 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:38:47,086 INFO L231 Difference]: Finished difference. Result has 171 places, 167 transitions, 378 flow [2022-11-16 12:38:47,087 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=378, PETRI_PLACES=171, PETRI_TRANSITIONS=167} [2022-11-16 12:38:47,090 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 6 predicate places. [2022-11-16 12:38:47,091 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 167 transitions, 378 flow [2022-11-16 12:38:47,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 149.75) internal successors, (599), 4 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:47,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:47,096 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:47,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:38:47,097 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-16 12:38:47,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:47,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1808297468, now seen corresponding path program 1 times [2022-11-16 12:38:47,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:47,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85494694] [2022-11-16 12:38:47,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:47,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:47,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:47,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:47,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85494694] [2022-11-16 12:38:47,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85494694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:47,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:47,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:38:47,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424400943] [2022-11-16 12:38:47,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:47,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:38:47,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:47,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:38:47,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:38:47,290 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 182 [2022-11-16 12:38:47,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 167 transitions, 378 flow. Second operand has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:47,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:47,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 182 [2022-11-16 12:38:47,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:47,766 INFO L130 PetriNetUnfolder]: 181/1133 cut-off events. [2022-11-16 12:38:47,766 INFO L131 PetriNetUnfolder]: For 127/146 co-relation queries the response was YES. [2022-11-16 12:38:47,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 1133 events. 181/1133 cut-off events. For 127/146 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 8293 event pairs, 56 based on Foata normal form. 0/978 useless extension candidates. Maximal degree in co-relation 1463. Up to 208 conditions per place. [2022-11-16 12:38:47,783 INFO L137 encePairwiseOnDemand]: 175/182 looper letters, 36 selfloop transitions, 6 changer transitions 0/190 dead transitions. [2022-11-16 12:38:47,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 190 transitions, 526 flow [2022-11-16 12:38:47,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:38:47,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:38:47,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 771 transitions. [2022-11-16 12:38:47,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8472527472527472 [2022-11-16 12:38:47,787 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 771 transitions. [2022-11-16 12:38:47,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 771 transitions. [2022-11-16 12:38:47,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:47,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 771 transitions. [2022-11-16 12:38:47,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.2) internal successors, (771), 5 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:47,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:47,794 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:47,795 INFO L175 Difference]: Start difference. First operand has 171 places, 167 transitions, 378 flow. Second operand 5 states and 771 transitions. [2022-11-16 12:38:47,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 190 transitions, 526 flow [2022-11-16 12:38:47,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 190 transitions, 524 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:38:47,802 INFO L231 Difference]: Finished difference. Result has 177 places, 172 transitions, 425 flow [2022-11-16 12:38:47,802 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=425, PETRI_PLACES=177, PETRI_TRANSITIONS=172} [2022-11-16 12:38:47,805 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 12 predicate places. [2022-11-16 12:38:47,805 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 172 transitions, 425 flow [2022-11-16 12:38:47,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:47,806 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:47,807 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:47,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:38:47,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-16 12:38:47,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:47,809 INFO L85 PathProgramCache]: Analyzing trace with hash -2069954455, now seen corresponding path program 1 times [2022-11-16 12:38:47,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:47,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443655589] [2022-11-16 12:38:47,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:47,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:38:47,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:47,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443655589] [2022-11-16 12:38:47,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443655589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:47,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:47,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:38:47,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95945268] [2022-11-16 12:38:47,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:47,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:38:47,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:47,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:38:47,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:38:47,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 182 [2022-11-16 12:38:47,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 172 transitions, 425 flow. Second operand has 4 states, 4 states have (on average 151.75) internal successors, (607), 4 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:47,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:47,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 182 [2022-11-16 12:38:47,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:48,161 INFO L130 PetriNetUnfolder]: 11/375 cut-off events. [2022-11-16 12:38:48,162 INFO L131 PetriNetUnfolder]: For 104/238 co-relation queries the response was YES. [2022-11-16 12:38:48,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 375 events. 11/375 cut-off events. For 104/238 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1284 event pairs, 0 based on Foata normal form. 16/351 useless extension candidates. Maximal degree in co-relation 301. Up to 16 conditions per place. [2022-11-16 12:38:48,169 INFO L137 encePairwiseOnDemand]: 176/182 looper letters, 11 selfloop transitions, 8 changer transitions 0/172 dead transitions. [2022-11-16 12:38:48,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 172 transitions, 461 flow [2022-11-16 12:38:48,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:38:48,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:38:48,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 757 transitions. [2022-11-16 12:38:48,172 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8318681318681319 [2022-11-16 12:38:48,173 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 757 transitions. [2022-11-16 12:38:48,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 757 transitions. [2022-11-16 12:38:48,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:48,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 757 transitions. [2022-11-16 12:38:48,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 151.4) internal successors, (757), 5 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:48,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:48,183 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:48,183 INFO L175 Difference]: Start difference. First operand has 177 places, 172 transitions, 425 flow. Second operand 5 states and 757 transitions. [2022-11-16 12:38:48,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 172 transitions, 461 flow [2022-11-16 12:38:48,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 172 transitions, 458 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:38:48,192 INFO L231 Difference]: Finished difference. Result has 180 places, 172 transitions, 442 flow [2022-11-16 12:38:48,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=442, PETRI_PLACES=180, PETRI_TRANSITIONS=172} [2022-11-16 12:38:48,196 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 15 predicate places. [2022-11-16 12:38:48,197 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 172 transitions, 442 flow [2022-11-16 12:38:48,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 151.75) internal successors, (607), 4 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:48,197 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:48,198 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:48,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:38:48,198 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-16 12:38:48,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:48,199 INFO L85 PathProgramCache]: Analyzing trace with hash 255921806, now seen corresponding path program 1 times [2022-11-16 12:38:48,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:48,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456837452] [2022-11-16 12:38:48,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:48,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,414 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:48,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:48,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456837452] [2022-11-16 12:38:48,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456837452] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:38:48,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963176038] [2022-11-16 12:38:48,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:48,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:48,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:48,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:38:48,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:38:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:48,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:38:48,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:38:48,659 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:48,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:38:48,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963176038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:48,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:38:48,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 12:38:48,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828529342] [2022-11-16 12:38:48,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:48,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:38:48,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:48,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:38:48,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:38:48,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 182 [2022-11-16 12:38:48,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 172 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:48,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:48,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 182 [2022-11-16 12:38:48,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:48,811 INFO L130 PetriNetUnfolder]: 11/374 cut-off events. [2022-11-16 12:38:48,812 INFO L131 PetriNetUnfolder]: For 109/232 co-relation queries the response was YES. [2022-11-16 12:38:48,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 374 events. 11/374 cut-off events. For 109/232 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1280 event pairs, 0 based on Foata normal form. 9/343 useless extension candidates. Maximal degree in co-relation 302. Up to 19 conditions per place. [2022-11-16 12:38:48,817 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 15 selfloop transitions, 6 changer transitions 0/174 dead transitions. [2022-11-16 12:38:48,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 174 transitions, 486 flow [2022-11-16 12:38:48,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:38:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:38:48,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1058 transitions. [2022-11-16 12:38:48,821 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8304552590266876 [2022-11-16 12:38:48,822 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1058 transitions. [2022-11-16 12:38:48,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1058 transitions. [2022-11-16 12:38:48,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:48,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1058 transitions. [2022-11-16 12:38:48,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.14285714285714) internal successors, (1058), 7 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:48,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:48,830 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:48,831 INFO L175 Difference]: Start difference. First operand has 180 places, 172 transitions, 442 flow. Second operand 7 states and 1058 transitions. [2022-11-16 12:38:48,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 174 transitions, 486 flow [2022-11-16 12:38:48,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 174 transitions, 474 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:38:48,837 INFO L231 Difference]: Finished difference. Result has 182 places, 171 transitions, 438 flow [2022-11-16 12:38:48,837 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=438, PETRI_PLACES=182, PETRI_TRANSITIONS=171} [2022-11-16 12:38:48,838 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 17 predicate places. [2022-11-16 12:38:48,838 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 171 transitions, 438 flow [2022-11-16 12:38:48,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:48,840 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:48,840 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:48,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:49,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-16 12:38:49,046 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-16 12:38:49,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:49,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1317227846, now seen corresponding path program 1 times [2022-11-16 12:38:49,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:49,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066207265] [2022-11-16 12:38:49,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:49,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:49,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:49,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:49,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066207265] [2022-11-16 12:38:49,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066207265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:49,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:49,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:38:49,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240810695] [2022-11-16 12:38:49,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:49,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:38:49,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:49,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:38:49,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:38:49,258 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 182 [2022-11-16 12:38:49,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 171 transitions, 438 flow. Second operand has 6 states, 6 states have (on average 141.5) internal successors, (849), 6 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:49,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:49,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 182 [2022-11-16 12:38:49,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:49,863 INFO L130 PetriNetUnfolder]: 352/1747 cut-off events. [2022-11-16 12:38:49,863 INFO L131 PetriNetUnfolder]: For 380/426 co-relation queries the response was YES. [2022-11-16 12:38:49,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2668 conditions, 1747 events. 352/1747 cut-off events. For 380/426 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 14518 event pairs, 70 based on Foata normal form. 4/1537 useless extension candidates. Maximal degree in co-relation 1912. Up to 237 conditions per place. [2022-11-16 12:38:49,885 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 60 selfloop transitions, 19 changer transitions 0/221 dead transitions. [2022-11-16 12:38:49,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 221 transitions, 746 flow [2022-11-16 12:38:49,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:38:49,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:38:49,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1341 transitions. [2022-11-16 12:38:49,896 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8186813186813187 [2022-11-16 12:38:49,896 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1341 transitions. [2022-11-16 12:38:49,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1341 transitions. [2022-11-16 12:38:49,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:49,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1341 transitions. [2022-11-16 12:38:49,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:49,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:49,907 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:49,907 INFO L175 Difference]: Start difference. First operand has 182 places, 171 transitions, 438 flow. Second operand 9 states and 1341 transitions. [2022-11-16 12:38:49,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 221 transitions, 746 flow [2022-11-16 12:38:49,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 221 transitions, 735 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-16 12:38:49,918 INFO L231 Difference]: Finished difference. Result has 191 places, 183 transitions, 553 flow [2022-11-16 12:38:49,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=553, PETRI_PLACES=191, PETRI_TRANSITIONS=183} [2022-11-16 12:38:49,920 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 26 predicate places. [2022-11-16 12:38:49,920 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 183 transitions, 553 flow [2022-11-16 12:38:49,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.5) internal successors, (849), 6 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:49,921 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:49,921 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:49,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:38:49,922 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-16 12:38:49,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:49,922 INFO L85 PathProgramCache]: Analyzing trace with hash 2115610324, now seen corresponding path program 1 times [2022-11-16 12:38:49,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:49,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935638054] [2022-11-16 12:38:49,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:49,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:50,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:50,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935638054] [2022-11-16 12:38:50,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935638054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:50,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:50,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:38:50,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529000402] [2022-11-16 12:38:50,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:50,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:38:50,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:50,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:38:50,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:38:50,097 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 182 [2022-11-16 12:38:50,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 183 transitions, 553 flow. Second operand has 6 states, 6 states have (on average 141.66666666666666) internal successors, (850), 6 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:50,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:50,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 182 [2022-11-16 12:38:50,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:50,776 INFO L130 PetriNetUnfolder]: 341/1820 cut-off events. [2022-11-16 12:38:50,776 INFO L131 PetriNetUnfolder]: For 1142/1229 co-relation queries the response was YES. [2022-11-16 12:38:50,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 1820 events. 341/1820 cut-off events. For 1142/1229 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 15335 event pairs, 82 based on Foata normal form. 45/1660 useless extension candidates. Maximal degree in co-relation 2301. Up to 273 conditions per place. [2022-11-16 12:38:50,806 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 65 selfloop transitions, 19 changer transitions 0/226 dead transitions. [2022-11-16 12:38:50,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 226 transitions, 888 flow [2022-11-16 12:38:50,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:38:50,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:38:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1343 transitions. [2022-11-16 12:38:50,811 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8199023199023199 [2022-11-16 12:38:50,811 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1343 transitions. [2022-11-16 12:38:50,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1343 transitions. [2022-11-16 12:38:50,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:50,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1343 transitions. [2022-11-16 12:38:50,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 149.22222222222223) internal successors, (1343), 9 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:50,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:50,823 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:50,824 INFO L175 Difference]: Start difference. First operand has 191 places, 183 transitions, 553 flow. Second operand 9 states and 1343 transitions. [2022-11-16 12:38:50,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 226 transitions, 888 flow [2022-11-16 12:38:50,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 226 transitions, 847 flow, removed 11 selfloop flow, removed 4 redundant places. [2022-11-16 12:38:50,837 INFO L231 Difference]: Finished difference. Result has 197 places, 187 transitions, 600 flow [2022-11-16 12:38:50,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=600, PETRI_PLACES=197, PETRI_TRANSITIONS=187} [2022-11-16 12:38:50,840 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 32 predicate places. [2022-11-16 12:38:50,840 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 187 transitions, 600 flow [2022-11-16 12:38:50,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.66666666666666) internal successors, (850), 6 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:50,841 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:50,842 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:50,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:38:50,842 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-16 12:38:50,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:50,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2017208252, now seen corresponding path program 1 times [2022-11-16 12:38:50,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:50,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021880795] [2022-11-16 12:38:50,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:50,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 12:38:50,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:50,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021880795] [2022-11-16 12:38:50,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021880795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:50,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:50,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:38:50,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486481414] [2022-11-16 12:38:50,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:50,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:38:50,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:50,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:38:50,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:38:50,956 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 182 [2022-11-16 12:38:50,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 187 transitions, 600 flow. Second operand has 4 states, 4 states have (on average 146.25) internal successors, (585), 4 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:50,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:50,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 182 [2022-11-16 12:38:50,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:51,383 INFO L130 PetriNetUnfolder]: 268/1638 cut-off events. [2022-11-16 12:38:51,383 INFO L131 PetriNetUnfolder]: For 1225/1301 co-relation queries the response was YES. [2022-11-16 12:38:51,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2996 conditions, 1638 events. 268/1638 cut-off events. For 1225/1301 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 13750 event pairs, 61 based on Foata normal form. 22/1510 useless extension candidates. Maximal degree in co-relation 2715. Up to 362 conditions per place. [2022-11-16 12:38:51,410 INFO L137 encePairwiseOnDemand]: 175/182 looper letters, 55 selfloop transitions, 7 changer transitions 0/213 dead transitions. [2022-11-16 12:38:51,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 213 transitions, 862 flow [2022-11-16 12:38:51,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:38:51,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:38:51,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 769 transitions. [2022-11-16 12:38:51,414 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.845054945054945 [2022-11-16 12:38:51,414 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 769 transitions. [2022-11-16 12:38:51,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 769 transitions. [2022-11-16 12:38:51,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:51,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 769 transitions. [2022-11-16 12:38:51,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.8) internal successors, (769), 5 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:51,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:51,421 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:51,421 INFO L175 Difference]: Start difference. First operand has 197 places, 187 transitions, 600 flow. Second operand 5 states and 769 transitions. [2022-11-16 12:38:51,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 213 transitions, 862 flow [2022-11-16 12:38:51,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 213 transitions, 834 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-16 12:38:51,432 INFO L231 Difference]: Finished difference. Result has 200 places, 190 transitions, 630 flow [2022-11-16 12:38:51,433 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=630, PETRI_PLACES=200, PETRI_TRANSITIONS=190} [2022-11-16 12:38:51,434 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 35 predicate places. [2022-11-16 12:38:51,434 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 190 transitions, 630 flow [2022-11-16 12:38:51,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.25) internal successors, (585), 4 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:51,435 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:51,436 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:51,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:38:51,436 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-16 12:38:51,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:51,437 INFO L85 PathProgramCache]: Analyzing trace with hash 515394576, now seen corresponding path program 1 times [2022-11-16 12:38:51,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:51,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527164111] [2022-11-16 12:38:51,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:51,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:38:51,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:38:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:38:51,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:38:51,500 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:38:51,501 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-16 12:38:51,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2022-11-16 12:38:51,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2022-11-16 12:38:51,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2022-11-16 12:38:51,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2022-11-16 12:38:51,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2022-11-16 12:38:51,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2022-11-16 12:38:51,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2022-11-16 12:38:51,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2022-11-16 12:38:51,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2022-11-16 12:38:51,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2022-11-16 12:38:51,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2022-11-16 12:38:51,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2022-11-16 12:38:51,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2022-11-16 12:38:51,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2022-11-16 12:38:51,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2022-11-16 12:38:51,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2022-11-16 12:38:51,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:38:51,505 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:51,506 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 12:38:51,506 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-16 12:38:51,555 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 12:38:51,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 220 transitions, 470 flow [2022-11-16 12:38:51,643 INFO L130 PetriNetUnfolder]: 62/467 cut-off events. [2022-11-16 12:38:51,644 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-16 12:38:51,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 467 events. 62/467 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1563 event pairs, 1 based on Foata normal form. 0/369 useless extension candidates. Maximal degree in co-relation 315. Up to 16 conditions per place. [2022-11-16 12:38:51,648 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 220 transitions, 470 flow [2022-11-16 12:38:51,654 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 220 transitions, 470 flow [2022-11-16 12:38:51,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:38:51,656 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;@58fc8167, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:38:51,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-16 12:38:51,664 INFO L130 PetriNetUnfolder]: 5/80 cut-off events. [2022-11-16 12:38:51,664 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:38:51,664 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:51,664 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] [2022-11-16 12:38:51,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:38:51,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:51,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1994456233, now seen corresponding path program 1 times [2022-11-16 12:38:51,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:51,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687174980] [2022-11-16 12:38:51,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:51,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:51,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:51,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687174980] [2022-11-16 12:38:51,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687174980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:51,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:51,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:38:51,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116053851] [2022-11-16 12:38:51,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:51,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:38:51,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:51,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:38:51,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:38:51,739 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 220 [2022-11-16 12:38:51,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 220 transitions, 470 flow. Second operand has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:51,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:51,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 220 [2022-11-16 12:38:51,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:51,884 INFO L130 PetriNetUnfolder]: 16/394 cut-off events. [2022-11-16 12:38:51,884 INFO L131 PetriNetUnfolder]: For 43/99 co-relation queries the response was YES. [2022-11-16 12:38:51,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 394 events. 16/394 cut-off events. For 43/99 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1293 event pairs, 1 based on Foata normal form. 306/647 useless extension candidates. Maximal degree in co-relation 287. Up to 40 conditions per place. [2022-11-16 12:38:51,890 INFO L137 encePairwiseOnDemand]: 190/220 looper letters, 21 selfloop transitions, 4 changer transitions 0/203 dead transitions. [2022-11-16 12:38:51,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 203 transitions, 486 flow [2022-11-16 12:38:51,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:38:51,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:38:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 960 transitions. [2022-11-16 12:38:51,894 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8727272727272727 [2022-11-16 12:38:51,894 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 960 transitions. [2022-11-16 12:38:51,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 960 transitions. [2022-11-16 12:38:51,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:51,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 960 transitions. [2022-11-16 12:38:51,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.0) internal successors, (960), 5 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:51,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:51,903 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:51,903 INFO L175 Difference]: Start difference. First operand has 198 places, 220 transitions, 470 flow. Second operand 5 states and 960 transitions. [2022-11-16 12:38:51,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 203 transitions, 486 flow [2022-11-16 12:38:51,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 203 transitions, 486 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:38:51,908 INFO L231 Difference]: Finished difference. Result has 204 places, 199 transitions, 454 flow [2022-11-16 12:38:51,910 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=454, PETRI_PLACES=204, PETRI_TRANSITIONS=199} [2022-11-16 12:38:51,912 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 6 predicate places. [2022-11-16 12:38:51,912 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 199 transitions, 454 flow [2022-11-16 12:38:51,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:51,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:51,913 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:51,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:38:51,914 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:38:51,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:51,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1869435652, now seen corresponding path program 1 times [2022-11-16 12:38:51,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:51,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876300642] [2022-11-16 12:38:51,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:51,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:52,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:52,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:52,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876300642] [2022-11-16 12:38:52,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876300642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:52,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:52,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:38:52,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950562750] [2022-11-16 12:38:52,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:52,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:38:52,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:52,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:38:52,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:38:52,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 220 [2022-11-16 12:38:52,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 199 transitions, 454 flow. Second operand has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:52,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:52,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 220 [2022-11-16 12:38:52,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:54,061 INFO L130 PetriNetUnfolder]: 1984/8390 cut-off events. [2022-11-16 12:38:54,062 INFO L131 PetriNetUnfolder]: For 1389/1554 co-relation queries the response was YES. [2022-11-16 12:38:54,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11924 conditions, 8390 events. 1984/8390 cut-off events. For 1389/1554 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 94750 event pairs, 1124 based on Foata normal form. 1/7152 useless extension candidates. Maximal degree in co-relation 11848. Up to 2017 conditions per place. [2022-11-16 12:38:54,199 INFO L137 encePairwiseOnDemand]: 212/220 looper letters, 52 selfloop transitions, 8 changer transitions 0/234 dead transitions. [2022-11-16 12:38:54,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 234 transitions, 686 flow [2022-11-16 12:38:54,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:38:54,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:38:54,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 919 transitions. [2022-11-16 12:38:54,203 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8354545454545454 [2022-11-16 12:38:54,203 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 919 transitions. [2022-11-16 12:38:54,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 919 transitions. [2022-11-16 12:38:54,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:54,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 919 transitions. [2022-11-16 12:38:54,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:54,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:54,211 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:54,211 INFO L175 Difference]: Start difference. First operand has 204 places, 199 transitions, 454 flow. Second operand 5 states and 919 transitions. [2022-11-16 12:38:54,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 234 transitions, 686 flow [2022-11-16 12:38:54,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 234 transitions, 684 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:38:54,219 INFO L231 Difference]: Finished difference. Result has 210 places, 206 transitions, 516 flow [2022-11-16 12:38:54,220 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=516, PETRI_PLACES=210, PETRI_TRANSITIONS=206} [2022-11-16 12:38:54,221 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 12 predicate places. [2022-11-16 12:38:54,221 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 206 transitions, 516 flow [2022-11-16 12:38:54,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:54,222 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:54,222 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:54,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:38:54,223 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:38:54,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:54,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1814423667, now seen corresponding path program 1 times [2022-11-16 12:38:54,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:54,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442935582] [2022-11-16 12:38:54,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:54,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:54,299 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:38:54,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:54,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442935582] [2022-11-16 12:38:54,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442935582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:54,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:54,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:38:54,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206310376] [2022-11-16 12:38:54,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:54,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:38:54,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:54,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:38:54,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:38:54,303 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 220 [2022-11-16 12:38:54,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 206 transitions, 516 flow. Second operand has 4 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:54,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:54,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 220 [2022-11-16 12:38:54,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:54,637 INFO L130 PetriNetUnfolder]: 46/897 cut-off events. [2022-11-16 12:38:54,637 INFO L131 PetriNetUnfolder]: For 172/447 co-relation queries the response was YES. [2022-11-16 12:38:54,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1130 conditions, 897 events. 46/897 cut-off events. For 172/447 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5292 event pairs, 7 based on Foata normal form. 41/818 useless extension candidates. Maximal degree in co-relation 783. Up to 52 conditions per place. [2022-11-16 12:38:54,651 INFO L137 encePairwiseOnDemand]: 214/220 looper letters, 13 selfloop transitions, 8 changer transitions 0/206 dead transitions. [2022-11-16 12:38:54,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 206 transitions, 556 flow [2022-11-16 12:38:54,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:38:54,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:38:54,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 909 transitions. [2022-11-16 12:38:54,655 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8263636363636364 [2022-11-16 12:38:54,655 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 909 transitions. [2022-11-16 12:38:54,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 909 transitions. [2022-11-16 12:38:54,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:54,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 909 transitions. [2022-11-16 12:38:54,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 181.8) internal successors, (909), 5 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:54,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:54,663 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:54,663 INFO L175 Difference]: Start difference. First operand has 210 places, 206 transitions, 516 flow. Second operand 5 states and 909 transitions. [2022-11-16 12:38:54,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 206 transitions, 556 flow [2022-11-16 12:38:54,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 206 transitions, 552 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:38:54,668 INFO L231 Difference]: Finished difference. Result has 213 places, 206 transitions, 532 flow [2022-11-16 12:38:54,669 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=532, PETRI_PLACES=213, PETRI_TRANSITIONS=206} [2022-11-16 12:38:54,670 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 15 predicate places. [2022-11-16 12:38:54,670 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 206 transitions, 532 flow [2022-11-16 12:38:54,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:54,671 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:54,673 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:54,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:38:54,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:38:54,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:54,674 INFO L85 PathProgramCache]: Analyzing trace with hash -412558138, now seen corresponding path program 1 times [2022-11-16 12:38:54,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:54,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195013522] [2022-11-16 12:38:54,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:54,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:54,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:54,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195013522] [2022-11-16 12:38:54,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195013522] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:38:54,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013910981] [2022-11-16 12:38:54,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:54,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:38:54,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:54,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:38:54,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:38:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:54,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:38:54,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:38:54,966 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:54,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:38:54,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013910981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:54,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:38:54,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 12:38:54,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030854258] [2022-11-16 12:38:54,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:54,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:38:54,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:54,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:38:54,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:38:54,971 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 220 [2022-11-16 12:38:54,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 206 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:54,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:54,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 220 [2022-11-16 12:38:54,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:55,303 INFO L130 PetriNetUnfolder]: 46/895 cut-off events. [2022-11-16 12:38:55,304 INFO L131 PetriNetUnfolder]: For 186/438 co-relation queries the response was YES. [2022-11-16 12:38:55,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1139 conditions, 895 events. 46/895 cut-off events. For 186/438 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5284 event pairs, 7 based on Foata normal form. 18/793 useless extension candidates. Maximal degree in co-relation 783. Up to 58 conditions per place. [2022-11-16 12:38:55,319 INFO L137 encePairwiseOnDemand]: 215/220 looper letters, 17 selfloop transitions, 6 changer transitions 0/208 dead transitions. [2022-11-16 12:38:55,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 208 transitions, 580 flow [2022-11-16 12:38:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:38:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:38:55,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1270 transitions. [2022-11-16 12:38:55,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8246753246753247 [2022-11-16 12:38:55,327 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1270 transitions. [2022-11-16 12:38:55,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1270 transitions. [2022-11-16 12:38:55,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:55,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1270 transitions. [2022-11-16 12:38:55,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 181.42857142857142) internal successors, (1270), 7 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:55,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 220.0) internal successors, (1760), 8 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:55,337 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 220.0) internal successors, (1760), 8 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:55,337 INFO L175 Difference]: Start difference. First operand has 213 places, 206 transitions, 532 flow. Second operand 7 states and 1270 transitions. [2022-11-16 12:38:55,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 208 transitions, 580 flow [2022-11-16 12:38:55,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 208 transitions, 568 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:38:55,344 INFO L231 Difference]: Finished difference. Result has 215 places, 205 transitions, 528 flow [2022-11-16 12:38:55,345 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=528, PETRI_PLACES=215, PETRI_TRANSITIONS=205} [2022-11-16 12:38:55,345 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 17 predicate places. [2022-11-16 12:38:55,346 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 205 transitions, 528 flow [2022-11-16 12:38:55,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:55,347 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:55,347 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:55,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:55,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 12:38:55,553 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:38:55,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:55,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1462616798, now seen corresponding path program 1 times [2022-11-16 12:38:55,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:55,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342500990] [2022-11-16 12:38:55,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:55,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:55,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:55,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342500990] [2022-11-16 12:38:55,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342500990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:55,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:55,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:38:55,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966922265] [2022-11-16 12:38:55,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:55,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:38:55,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:55,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:38:55,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:38:55,705 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 220 [2022-11-16 12:38:55,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 205 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:55,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:55,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 220 [2022-11-16 12:38:55,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:38:59,293 INFO L130 PetriNetUnfolder]: 4038/14125 cut-off events. [2022-11-16 12:38:59,294 INFO L131 PetriNetUnfolder]: For 4404/4735 co-relation queries the response was YES. [2022-11-16 12:38:59,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23184 conditions, 14125 events. 4038/14125 cut-off events. For 4404/4735 co-relation queries the response was YES. Maximal size of possible extension queue 796. Compared 171335 event pairs, 1078 based on Foata normal form. 9/12390 useless extension candidates. Maximal degree in co-relation 15643. Up to 2727 conditions per place. [2022-11-16 12:38:59,573 INFO L137 encePairwiseOnDemand]: 207/220 looper letters, 100 selfloop transitions, 27 changer transitions 0/295 dead transitions. [2022-11-16 12:38:59,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 295 transitions, 1108 flow [2022-11-16 12:38:59,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:38:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:38:59,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1623 transitions. [2022-11-16 12:38:59,580 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8196969696969697 [2022-11-16 12:38:59,580 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1623 transitions. [2022-11-16 12:38:59,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1623 transitions. [2022-11-16 12:38:59,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:59,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1623 transitions. [2022-11-16 12:38:59,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 180.33333333333334) internal successors, (1623), 9 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:59,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 220.0) internal successors, (2200), 10 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:59,595 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 220.0) internal successors, (2200), 10 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:59,595 INFO L175 Difference]: Start difference. First operand has 215 places, 205 transitions, 528 flow. Second operand 9 states and 1623 transitions. [2022-11-16 12:38:59,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 295 transitions, 1108 flow [2022-11-16 12:38:59,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 295 transitions, 1097 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-16 12:38:59,613 INFO L231 Difference]: Finished difference. Result has 224 places, 224 transitions, 721 flow [2022-11-16 12:38:59,614 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=721, PETRI_PLACES=224, PETRI_TRANSITIONS=224} [2022-11-16 12:38:59,615 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 26 predicate places. [2022-11-16 12:38:59,615 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 224 transitions, 721 flow [2022-11-16 12:38:59,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:59,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:38:59,617 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:59,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:38:59,617 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:38:59,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:59,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1903518636, now seen corresponding path program 1 times [2022-11-16 12:38:59,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:59,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995356152] [2022-11-16 12:38:59,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:59,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:59,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:59,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:38:59,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995356152] [2022-11-16 12:38:59,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995356152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:38:59,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:38:59,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:38:59,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540246753] [2022-11-16 12:38:59,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:38:59,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:38:59,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:38:59,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:38:59,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:38:59,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 220 [2022-11-16 12:38:59,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 224 transitions, 721 flow. Second operand has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:38:59,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:38:59,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 220 [2022-11-16 12:38:59,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:03,219 INFO L130 PetriNetUnfolder]: 3809/13787 cut-off events. [2022-11-16 12:39:03,220 INFO L131 PetriNetUnfolder]: For 12691/13245 co-relation queries the response was YES. [2022-11-16 12:39:03,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27277 conditions, 13787 events. 3809/13787 cut-off events. For 12691/13245 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 168990 event pairs, 1017 based on Foata normal form. 250/12769 useless extension candidates. Maximal degree in co-relation 23761. Up to 2976 conditions per place. [2022-11-16 12:39:03,613 INFO L137 encePairwiseOnDemand]: 207/220 looper letters, 107 selfloop transitions, 27 changer transitions 0/302 dead transitions. [2022-11-16 12:39:03,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 302 transitions, 1366 flow [2022-11-16 12:39:03,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:39:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:39:03,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1621 transitions. [2022-11-16 12:39:03,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8186868686868687 [2022-11-16 12:39:03,620 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1621 transitions. [2022-11-16 12:39:03,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1621 transitions. [2022-11-16 12:39:03,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:03,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1621 transitions. [2022-11-16 12:39:03,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 180.11111111111111) internal successors, (1621), 9 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:03,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 220.0) internal successors, (2200), 10 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:03,633 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 220.0) internal successors, (2200), 10 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:03,634 INFO L175 Difference]: Start difference. First operand has 224 places, 224 transitions, 721 flow. Second operand 9 states and 1621 transitions. [2022-11-16 12:39:03,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 302 transitions, 1366 flow [2022-11-16 12:39:03,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 302 transitions, 1299 flow, removed 20 selfloop flow, removed 4 redundant places. [2022-11-16 12:39:03,689 INFO L231 Difference]: Finished difference. Result has 230 places, 232 transitions, 802 flow [2022-11-16 12:39:03,690 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=802, PETRI_PLACES=230, PETRI_TRANSITIONS=232} [2022-11-16 12:39:03,691 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 32 predicate places. [2022-11-16 12:39:03,691 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 232 transitions, 802 flow [2022-11-16 12:39:03,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:03,692 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:03,693 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:03,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:39:03,693 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:39:03,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:03,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1827738080, now seen corresponding path program 1 times [2022-11-16 12:39:03,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:03,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257893714] [2022-11-16 12:39:03,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:03,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 12:39:03,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:03,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257893714] [2022-11-16 12:39:03,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257893714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:03,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:03,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:39:03,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730922180] [2022-11-16 12:39:03,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:03,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:39:03,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:03,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:39:03,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:39:03,796 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 220 [2022-11-16 12:39:03,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 232 transitions, 802 flow. Second operand has 4 states, 4 states have (on average 172.25) internal successors, (689), 4 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:03,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:03,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 220 [2022-11-16 12:39:03,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:07,809 INFO L130 PetriNetUnfolder]: 4481/18889 cut-off events. [2022-11-16 12:39:07,809 INFO L131 PetriNetUnfolder]: For 18083/19015 co-relation queries the response was YES. [2022-11-16 12:39:07,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36703 conditions, 18889 events. 4481/18889 cut-off events. For 18083/19015 co-relation queries the response was YES. Maximal size of possible extension queue 1011. Compared 247174 event pairs, 2449 based on Foata normal form. 246/16840 useless extension candidates. Maximal degree in co-relation 25685. Up to 4806 conditions per place. [2022-11-16 12:39:08,133 INFO L137 encePairwiseOnDemand]: 212/220 looper letters, 93 selfloop transitions, 11 changer transitions 0/281 dead transitions. [2022-11-16 12:39:08,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 281 transitions, 1318 flow [2022-11-16 12:39:08,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:08,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:08,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 917 transitions. [2022-11-16 12:39:08,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8336363636363636 [2022-11-16 12:39:08,139 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 917 transitions. [2022-11-16 12:39:08,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 917 transitions. [2022-11-16 12:39:08,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:08,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 917 transitions. [2022-11-16 12:39:08,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 183.4) internal successors, (917), 5 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:08,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:08,147 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:08,148 INFO L175 Difference]: Start difference. First operand has 230 places, 232 transitions, 802 flow. Second operand 5 states and 917 transitions. [2022-11-16 12:39:08,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 281 transitions, 1318 flow [2022-11-16 12:39:08,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 281 transitions, 1276 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-16 12:39:08,254 INFO L231 Difference]: Finished difference. Result has 233 places, 237 transitions, 852 flow [2022-11-16 12:39:08,255 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=777, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=852, PETRI_PLACES=233, PETRI_TRANSITIONS=237} [2022-11-16 12:39:08,256 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 35 predicate places. [2022-11-16 12:39:08,256 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 237 transitions, 852 flow [2022-11-16 12:39:08,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 172.25) internal successors, (689), 4 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:08,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:08,258 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:08,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:39:08,258 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:39:08,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:08,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2078196274, now seen corresponding path program 1 times [2022-11-16 12:39:08,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:08,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934612188] [2022-11-16 12:39:08,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:08,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:08,550 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 12:39:08,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:08,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934612188] [2022-11-16 12:39:08,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934612188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:08,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:08,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:39:08,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966988697] [2022-11-16 12:39:08,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:08,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:39:08,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:08,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:39:08,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:39:08,555 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 220 [2022-11-16 12:39:08,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 237 transitions, 852 flow. Second operand has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:08,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:08,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 220 [2022-11-16 12:39:08,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:16,004 INFO L130 PetriNetUnfolder]: 9315/34799 cut-off events. [2022-11-16 12:39:16,004 INFO L131 PetriNetUnfolder]: For 32326/34237 co-relation queries the response was YES. [2022-11-16 12:39:16,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70594 conditions, 34799 events. 9315/34799 cut-off events. For 32326/34237 co-relation queries the response was YES. Maximal size of possible extension queue 2056. Compared 498570 event pairs, 2270 based on Foata normal form. 436/32028 useless extension candidates. Maximal degree in co-relation 63586. Up to 7057 conditions per place. [2022-11-16 12:39:16,628 INFO L137 encePairwiseOnDemand]: 207/220 looper letters, 149 selfloop transitions, 46 changer transitions 0/367 dead transitions. [2022-11-16 12:39:16,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 367 transitions, 1998 flow [2022-11-16 12:39:16,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:39:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:39:16,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1620 transitions. [2022-11-16 12:39:16,633 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2022-11-16 12:39:16,633 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1620 transitions. [2022-11-16 12:39:16,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1620 transitions. [2022-11-16 12:39:16,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:16,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1620 transitions. [2022-11-16 12:39:16,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 180.0) internal successors, (1620), 9 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 220.0) internal successors, (2200), 10 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,644 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 220.0) internal successors, (2200), 10 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:16,644 INFO L175 Difference]: Start difference. First operand has 233 places, 237 transitions, 852 flow. Second operand 9 states and 1620 transitions. [2022-11-16 12:39:16,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 367 transitions, 1998 flow [2022-11-16 12:39:16,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 367 transitions, 1992 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:39:17,000 INFO L231 Difference]: Finished difference. Result has 246 places, 272 transitions, 1336 flow [2022-11-16 12:39:17,001 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1336, PETRI_PLACES=246, PETRI_TRANSITIONS=272} [2022-11-16 12:39:17,002 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 48 predicate places. [2022-11-16 12:39:17,002 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 272 transitions, 1336 flow [2022-11-16 12:39:17,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,013 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:17,013 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:17,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:39:17,014 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:39:17,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:17,016 INFO L85 PathProgramCache]: Analyzing trace with hash -852813586, now seen corresponding path program 1 times [2022-11-16 12:39:17,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:17,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471797325] [2022-11-16 12:39:17,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:17,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:17,337 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 12:39:17,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:17,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471797325] [2022-11-16 12:39:17,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471797325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:17,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:17,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:39:17,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064442991] [2022-11-16 12:39:17,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:17,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:39:17,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:17,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:39:17,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:39:17,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 220 [2022-11-16 12:39:17,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 272 transitions, 1336 flow. Second operand has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:17,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:17,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 220 [2022-11-16 12:39:17,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:21,128 INFO L130 PetriNetUnfolder]: 2665/17172 cut-off events. [2022-11-16 12:39:21,128 INFO L131 PetriNetUnfolder]: For 15159/15774 co-relation queries the response was YES. [2022-11-16 12:39:21,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30117 conditions, 17172 events. 2665/17172 cut-off events. For 15159/15774 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 227658 event pairs, 841 based on Foata normal form. 739/16216 useless extension candidates. Maximal degree in co-relation 24846. Up to 2831 conditions per place. [2022-11-16 12:39:21,362 INFO L137 encePairwiseOnDemand]: 210/220 looper letters, 53 selfloop transitions, 10 changer transitions 0/294 dead transitions. [2022-11-16 12:39:21,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 294 transitions, 1515 flow [2022-11-16 12:39:21,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:21,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:21,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 847 transitions. [2022-11-16 12:39:21,369 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.77 [2022-11-16 12:39:21,370 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 847 transitions. [2022-11-16 12:39:21,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 847 transitions. [2022-11-16 12:39:21,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:21,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 847 transitions. [2022-11-16 12:39:21,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 169.4) internal successors, (847), 5 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:21,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:21,378 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:21,378 INFO L175 Difference]: Start difference. First operand has 246 places, 272 transitions, 1336 flow. Second operand 5 states and 847 transitions. [2022-11-16 12:39:21,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 294 transitions, 1515 flow [2022-11-16 12:39:21,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 294 transitions, 1485 flow, removed 7 selfloop flow, removed 3 redundant places. [2022-11-16 12:39:21,510 INFO L231 Difference]: Finished difference. Result has 248 places, 275 transitions, 1336 flow [2022-11-16 12:39:21,510 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=1292, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1336, PETRI_PLACES=248, PETRI_TRANSITIONS=275} [2022-11-16 12:39:21,511 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 50 predicate places. [2022-11-16 12:39:21,511 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 275 transitions, 1336 flow [2022-11-16 12:39:21,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:21,512 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:21,513 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:21,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:39:21,513 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:39:21,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:21,514 INFO L85 PathProgramCache]: Analyzing trace with hash -424136, now seen corresponding path program 1 times [2022-11-16 12:39:21,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:21,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215635290] [2022-11-16 12:39:21,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:21,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:21,699 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 12:39:21,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:21,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215635290] [2022-11-16 12:39:21,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215635290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:21,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:21,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:39:21,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490561758] [2022-11-16 12:39:21,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:21,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:39:21,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:21,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:39:21,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:39:21,704 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 220 [2022-11-16 12:39:21,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 275 transitions, 1336 flow. Second operand has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:21,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:21,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 220 [2022-11-16 12:39:21,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:24,044 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([866] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_11| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of3ForFork0_thidvar0_4) InVars {ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} AuxVars[] AssignedVars[][147], [Black: 512#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), t_funThread1of3ForFork0NotInUse, t_funThread2of3ForFork0NotInUse, t_funThread3of3ForFork0NotInUse, Black: 451#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 449#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 445#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 443#(= |t_funThread1of3ForFork0_#t~post33| 0), 459#true, Black: 206#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 203#(= |ULTIMATE.start_main_~i~1#1| 0), 515#true, 444#(<= ~global~0 1), Black: 463#(<= 1 ~global~0), Black: 470#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 214#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 213#(= ~global~0 0), 58#L952-4true, Black: 216#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 477#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 479#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 476#(= ~global~0 0), 484#true, 510#(and (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), 234#(<= 1 |ULTIMATE.start_main_~i~1#1|), Black: 493#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 488#(<= ~global~0 1), Black: 489#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 487#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 495#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 221#true]) [2022-11-16 12:39:24,044 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-16 12:39:24,044 INFO L386 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-11-16 12:39:24,044 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-16 12:39:24,044 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-16 12:39:25,346 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([867] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][189], [Black: 512#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0NotInUse, Black: 451#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), t_funThread3of3ForFork0NotInUse, Black: 449#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 444#(<= ~global~0 1), Black: 445#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 443#(= |t_funThread1of3ForFork0_#t~post33| 0), 459#true, Black: 206#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 203#(= |ULTIMATE.start_main_~i~1#1| 0), 515#true, Black: 463#(<= 1 ~global~0), Black: 470#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 214#(= |t_funThread1of3ForFork0_#t~post33| 0), 58#L952-4true, Black: 213#(= ~global~0 0), Black: 216#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 477#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 479#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 476#(= ~global~0 0), 484#true, 510#(and (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), 234#(<= 1 |ULTIMATE.start_main_~i~1#1|), 440#true, 116#L939-6true, Black: 493#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 488#(<= ~global~0 1), Black: 489#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 487#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 495#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 221#true]) [2022-11-16 12:39:25,346 INFO L383 tUnfolder$Statistics]: this new event has 163 ancestors and is cut-off event [2022-11-16 12:39:25,346 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-16 12:39:25,346 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-16 12:39:25,346 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-16 12:39:25,937 INFO L130 PetriNetUnfolder]: 2869/19952 cut-off events. [2022-11-16 12:39:25,938 INFO L131 PetriNetUnfolder]: For 22339/22954 co-relation queries the response was YES. [2022-11-16 12:39:26,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36407 conditions, 19952 events. 2869/19952 cut-off events. For 22339/22954 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 275993 event pairs, 1339 based on Foata normal form. 257/17812 useless extension candidates. Maximal degree in co-relation 28144. Up to 3638 conditions per place. [2022-11-16 12:39:26,136 INFO L137 encePairwiseOnDemand]: 207/220 looper letters, 141 selfloop transitions, 40 changer transitions 0/357 dead transitions. [2022-11-16 12:39:26,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 357 transitions, 2227 flow [2022-11-16 12:39:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:39:26,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:39:26,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1614 transitions. [2022-11-16 12:39:26,141 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8151515151515152 [2022-11-16 12:39:26,141 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1614 transitions. [2022-11-16 12:39:26,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1614 transitions. [2022-11-16 12:39:26,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:26,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1614 transitions. [2022-11-16 12:39:26,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 179.33333333333334) internal successors, (1614), 9 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:26,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 220.0) internal successors, (2200), 10 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:26,150 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 220.0) internal successors, (2200), 10 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:26,150 INFO L175 Difference]: Start difference. First operand has 248 places, 275 transitions, 1336 flow. Second operand 9 states and 1614 transitions. [2022-11-16 12:39:26,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 357 transitions, 2227 flow [2022-11-16 12:39:26,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 357 transitions, 2205 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:39:26,246 INFO L231 Difference]: Finished difference. Result has 255 places, 287 transitions, 1574 flow [2022-11-16 12:39:26,247 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1574, PETRI_PLACES=255, PETRI_TRANSITIONS=287} [2022-11-16 12:39:26,247 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 57 predicate places. [2022-11-16 12:39:26,247 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 287 transitions, 1574 flow [2022-11-16 12:39:26,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:26,248 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:26,248 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:26,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:39:26,249 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:39:26,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:26,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1871291845, now seen corresponding path program 1 times [2022-11-16 12:39:26,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:26,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858005135] [2022-11-16 12:39:26,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:26,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:26,333 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 12:39:26,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:26,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858005135] [2022-11-16 12:39:26,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858005135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:26,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:26,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:39:26,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303833799] [2022-11-16 12:39:26,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:26,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:39:26,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:26,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:39:26,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:39:26,337 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 220 [2022-11-16 12:39:26,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 287 transitions, 1574 flow. Second operand has 4 states, 4 states have (on average 172.5) internal successors, (690), 4 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:26,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:26,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 220 [2022-11-16 12:39:26,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:28,624 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([866] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_11| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of3ForFork0_thidvar0_4) InVars {ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} AuxVars[] AssignedVars[][145], [t_funThread1of3ForFork0NotInUse, Black: 512#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), t_funThread2of3ForFork0NotInUse, t_funThread3of3ForFork0NotInUse, Black: 451#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 449#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 445#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 443#(= |t_funThread1of3ForFork0_#t~post33| 0), 530#true, 459#true, Black: 526#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), Black: 206#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 519#(<= 1 ~global~0), Black: 203#(= |ULTIMATE.start_main_~i~1#1| 0), 515#true, 444#(<= ~global~0 1), Black: 463#(<= 1 ~global~0), Black: 470#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 214#(= |t_funThread1of3ForFork0_#t~post33| 0), 58#L952-4true, Black: 213#(= ~global~0 0), Black: 216#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 477#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 479#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 476#(= ~global~0 0), 510#(and (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), 484#true, 234#(<= 1 |ULTIMATE.start_main_~i~1#1|), Black: 493#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 488#(<= ~global~0 1), Black: 489#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 487#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 495#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 221#true]) [2022-11-16 12:39:28,624 INFO L383 tUnfolder$Statistics]: this new event has 141 ancestors and is cut-off event [2022-11-16 12:39:28,624 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-16 12:39:28,624 INFO L386 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-11-16 12:39:28,625 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-16 12:39:29,293 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([867] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][172], [Black: 512#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0NotInUse, t_funThread3of3ForFork0NotInUse, Black: 451#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 449#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 444#(<= ~global~0 1), Black: 445#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 443#(= |t_funThread1of3ForFork0_#t~post33| 0), 530#true, 459#true, Black: 206#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), 69#t_funENTRYtrue, Black: 526#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), Black: 203#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 519#(<= 1 ~global~0), 488#(<= ~global~0 1), 515#true, Black: 463#(<= 1 ~global~0), Black: 470#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 214#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 213#(= ~global~0 0), 58#L952-4true, Black: 216#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 477#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 479#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 476#(= ~global~0 0), 510#(and (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), 234#(<= 1 |ULTIMATE.start_main_~i~1#1|), 440#true, Black: 493#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 489#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 487#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 495#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 221#true]) [2022-11-16 12:39:29,293 INFO L383 tUnfolder$Statistics]: this new event has 153 ancestors and is cut-off event [2022-11-16 12:39:29,294 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-16 12:39:29,294 INFO L386 tUnfolder$Statistics]: existing Event has 115 ancestors and is cut-off event [2022-11-16 12:39:29,294 INFO L386 tUnfolder$Statistics]: existing Event has 106 ancestors and is cut-off event [2022-11-16 12:39:29,838 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([867] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][172], [t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0NotInUse, t_funThread3of3ForFork0NotInUse, Black: 451#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 449#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 444#(<= ~global~0 1), Black: 445#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 443#(= |t_funThread1of3ForFork0_#t~post33| 0), 530#true, 459#true, Black: 206#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 526#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), Black: 203#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 519#(<= 1 ~global~0), 488#(<= ~global~0 1), 156#L939-3true, 515#true, Black: 463#(<= 1 ~global~0), Black: 470#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 214#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 213#(= ~global~0 0), 58#L952-4true, Black: 216#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 477#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 479#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 476#(= ~global~0 0), 234#(<= 1 |ULTIMATE.start_main_~i~1#1|), 440#true, Black: 493#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 489#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 487#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 495#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 221#true, 512#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|)))]) [2022-11-16 12:39:29,838 INFO L383 tUnfolder$Statistics]: this new event has 160 ancestors and is cut-off event [2022-11-16 12:39:29,838 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-16 12:39:29,839 INFO L386 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-11-16 12:39:29,839 INFO L386 tUnfolder$Statistics]: existing Event has 112 ancestors and is cut-off event [2022-11-16 12:39:30,862 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([867] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][172], [t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0NotInUse, t_funThread3of3ForFork0NotInUse, Black: 451#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 449#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 444#(<= ~global~0 1), Black: 445#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 443#(= |t_funThread1of3ForFork0_#t~post33| 0), 530#true, 459#true, Black: 206#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 526#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), Black: 203#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 519#(<= 1 ~global~0), 515#true, Black: 463#(<= 1 ~global~0), Black: 470#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 214#(= |t_funThread1of3ForFork0_#t~post33| 0), 58#L952-4true, Black: 213#(= ~global~0 0), Black: 216#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 477#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 479#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 476#(= ~global~0 0), 484#true, 234#(<= 1 |ULTIMATE.start_main_~i~1#1|), 440#true, 116#L939-6true, Black: 493#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 488#(<= ~global~0 1), Black: 489#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 487#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 495#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 221#true, 512#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|)))]) [2022-11-16 12:39:30,862 INFO L383 tUnfolder$Statistics]: this new event has 162 ancestors and is cut-off event [2022-11-16 12:39:30,862 INFO L386 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-11-16 12:39:30,862 INFO L386 tUnfolder$Statistics]: existing Event has 115 ancestors and is cut-off event [2022-11-16 12:39:30,863 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-16 12:39:30,907 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([867] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][172], [Black: 512#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0NotInUse, Black: 451#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), t_funThread3of3ForFork0NotInUse, Black: 449#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 444#(<= ~global~0 1), Black: 445#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 443#(= |t_funThread1of3ForFork0_#t~post33| 0), 530#true, 459#true, Black: 206#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 526#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), Black: 203#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 519#(<= 1 ~global~0), 515#true, Black: 463#(<= 1 ~global~0), Black: 470#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 214#(= |t_funThread1of3ForFork0_#t~post33| 0), 168#L939-16true, 58#L952-4true, Black: 213#(= ~global~0 0), Black: 216#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 477#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 479#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 476#(= ~global~0 0), 510#(and (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), 484#true, 234#(<= 1 |ULTIMATE.start_main_~i~1#1|), 440#true, Black: 493#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 488#(<= ~global~0 1), Black: 489#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 487#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 495#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 221#true]) [2022-11-16 12:39:30,907 INFO L383 tUnfolder$Statistics]: this new event has 172 ancestors and is cut-off event [2022-11-16 12:39:30,907 INFO L386 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-11-16 12:39:30,907 INFO L386 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-11-16 12:39:30,907 INFO L386 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-11-16 12:39:31,073 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([867] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][172], [t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0NotInUse, Black: 451#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), t_funThread3of3ForFork0NotInUse, Black: 449#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 444#(<= ~global~0 1), Black: 445#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 443#(= |t_funThread1of3ForFork0_#t~post33| 0), 530#true, 459#true, Black: 206#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 526#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), Black: 203#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 519#(<= 1 ~global~0), 515#true, Black: 463#(<= 1 ~global~0), Black: 470#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 214#(= |t_funThread1of3ForFork0_#t~post33| 0), 58#L952-4true, Black: 213#(= ~global~0 0), Black: 216#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 477#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 479#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 476#(= ~global~0 0), 484#true, 234#(<= 1 |ULTIMATE.start_main_~i~1#1|), 440#true, Black: 493#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 488#(<= ~global~0 1), Black: 489#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 487#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 495#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 221#true, 160#L939-13true, 512#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|)))]) [2022-11-16 12:39:31,073 INFO L383 tUnfolder$Statistics]: this new event has 168 ancestors and is cut-off event [2022-11-16 12:39:31,073 INFO L386 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-11-16 12:39:31,074 INFO L386 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-11-16 12:39:31,074 INFO L386 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-11-16 12:39:31,115 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([867] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][172], [t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0NotInUse, Black: 451#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), t_funThread3of3ForFork0NotInUse, Black: 449#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 444#(<= ~global~0 1), Black: 445#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 443#(= |t_funThread1of3ForFork0_#t~post33| 0), 530#true, 459#true, Black: 206#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 526#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), Black: 203#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 519#(<= 1 ~global~0), 515#true, Black: 463#(<= 1 ~global~0), Black: 470#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 214#(= |t_funThread1of3ForFork0_#t~post33| 0), 168#L939-16true, 58#L952-4true, Black: 213#(= ~global~0 0), Black: 216#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 477#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 479#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 476#(= ~global~0 0), 484#true, 234#(<= 1 |ULTIMATE.start_main_~i~1#1|), 440#true, Black: 493#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 488#(<= ~global~0 1), Black: 489#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 487#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 495#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 221#true, 512#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|)))]) [2022-11-16 12:39:31,115 INFO L383 tUnfolder$Statistics]: this new event has 171 ancestors and is cut-off event [2022-11-16 12:39:31,115 INFO L386 tUnfolder$Statistics]: existing Event has 134 ancestors and is cut-off event [2022-11-16 12:39:31,116 INFO L386 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-11-16 12:39:31,116 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-16 12:39:31,122 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([867] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][172], [Black: 512#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0NotInUse, t_funThread3of3ForFork0NotInUse, Black: 451#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 449#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 444#(<= ~global~0 1), Black: 445#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 443#(= |t_funThread1of3ForFork0_#t~post33| 0), 530#true, 459#true, Black: 206#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 526#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), Black: 519#(<= 1 ~global~0), Black: 203#(= |ULTIMATE.start_main_~i~1#1| 0), 515#true, Black: 463#(<= 1 ~global~0), Black: 470#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 214#(= |t_funThread1of3ForFork0_#t~post33| 0), 168#L939-16true, 58#L952-4true, Black: 213#(= ~global~0 0), Black: 216#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 477#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 479#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 476#(= ~global~0 0), 484#true, 510#(and (<= |~#__global_lock~0.base| 6) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), 234#(<= 1 |ULTIMATE.start_main_~i~1#1|), 440#true, Black: 493#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 488#(<= ~global~0 1), Black: 489#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 487#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 495#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 221#true]) [2022-11-16 12:39:31,122 INFO L383 tUnfolder$Statistics]: this new event has 172 ancestors and is cut-off event [2022-11-16 12:39:31,122 INFO L386 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-11-16 12:39:31,122 INFO L386 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-11-16 12:39:31,123 INFO L386 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-11-16 12:39:31,123 INFO L386 tUnfolder$Statistics]: existing Event has 172 ancestors and is cut-off event [2022-11-16 12:39:31,186 INFO L130 PetriNetUnfolder]: 2452/17907 cut-off events. [2022-11-16 12:39:31,186 INFO L131 PetriNetUnfolder]: For 24118/24746 co-relation queries the response was YES. [2022-11-16 12:39:31,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33518 conditions, 17907 events. 2452/17907 cut-off events. For 24118/24746 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 244282 event pairs, 1402 based on Foata normal form. 224/15798 useless extension candidates. Maximal degree in co-relation 25618. Up to 3905 conditions per place. [2022-11-16 12:39:31,462 INFO L137 encePairwiseOnDemand]: 212/220 looper letters, 136 selfloop transitions, 12 changer transitions 0/333 dead transitions. [2022-11-16 12:39:31,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 333 transitions, 2273 flow [2022-11-16 12:39:31,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:31,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:31,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 915 transitions. [2022-11-16 12:39:31,467 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8318181818181818 [2022-11-16 12:39:31,467 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 915 transitions. [2022-11-16 12:39:31,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 915 transitions. [2022-11-16 12:39:31,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:31,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 915 transitions. [2022-11-16 12:39:31,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 183.0) internal successors, (915), 5 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:31,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:31,476 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:31,476 INFO L175 Difference]: Start difference. First operand has 255 places, 287 transitions, 1574 flow. Second operand 5 states and 915 transitions. [2022-11-16 12:39:31,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 333 transitions, 2273 flow [2022-11-16 12:39:31,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 333 transitions, 2210 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-11-16 12:39:31,583 INFO L231 Difference]: Finished difference. Result has 258 places, 291 transitions, 1606 flow [2022-11-16 12:39:31,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=1526, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1606, PETRI_PLACES=258, PETRI_TRANSITIONS=291} [2022-11-16 12:39:31,584 INFO L288 CegarLoopForPetriNet]: 198 programPoint places, 60 predicate places. [2022-11-16 12:39:31,584 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 291 transitions, 1606 flow [2022-11-16 12:39:31,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 172.5) internal successors, (690), 4 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:31,585 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:31,585 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:31,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:39:31,586 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-16 12:39:31,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:31,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1745029955, now seen corresponding path program 1 times [2022-11-16 12:39:31,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:31,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57130642] [2022-11-16 12:39:31,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:31,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:39:31,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:39:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:39:31,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:39:31,664 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:39:31,664 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2022-11-16 12:39:31,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-11-16 12:39:31,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-11-16 12:39:31,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-11-16 12:39:31,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-11-16 12:39:31,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-11-16 12:39:31,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-11-16 12:39:31,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-11-16 12:39:31,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-11-16 12:39:31,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-11-16 12:39:31,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-11-16 12:39:31,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-11-16 12:39:31,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-11-16 12:39:31,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-11-16 12:39:31,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-11-16 12:39:31,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-11-16 12:39:31,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-11-16 12:39:31,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-11-16 12:39:31,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-11-16 12:39:31,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-11-16 12:39:31,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-11-16 12:39:31,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:39:31,674 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:31,678 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 12:39:31,678 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-16 12:39:31,717 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 12:39:31,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 258 transitions, 560 flow [2022-11-16 12:39:31,837 INFO L130 PetriNetUnfolder]: 96/711 cut-off events. [2022-11-16 12:39:31,838 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-11-16 12:39:31,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 711 events. 96/711 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2755 event pairs, 6 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 487. Up to 32 conditions per place. [2022-11-16 12:39:31,843 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 258 transitions, 560 flow [2022-11-16 12:39:31,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 258 transitions, 560 flow [2022-11-16 12:39:31,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:39:31,852 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;@58fc8167, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:39:31,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-16 12:39:31,858 INFO L130 PetriNetUnfolder]: 5/80 cut-off events. [2022-11-16 12:39:31,859 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:39:31,859 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:31,859 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] [2022-11-16 12:39:31,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-16 12:39:31,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:31,860 INFO L85 PathProgramCache]: Analyzing trace with hash 640623951, now seen corresponding path program 1 times [2022-11-16 12:39:31,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:31,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353565454] [2022-11-16 12:39:31,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:31,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:31,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:31,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353565454] [2022-11-16 12:39:31,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353565454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:31,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:31,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:39:31,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623134124] [2022-11-16 12:39:31,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:31,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:39:31,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:31,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:39:31,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:39:31,938 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 258 [2022-11-16 12:39:31,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 258 transitions, 560 flow. Second operand has 4 states, 4 states have (on average 209.75) internal successors, (839), 4 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:31,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:31,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 258 [2022-11-16 12:39:31,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:32,126 INFO L130 PetriNetUnfolder]: 32/619 cut-off events. [2022-11-16 12:39:32,127 INFO L131 PetriNetUnfolder]: For 112/192 co-relation queries the response was YES. [2022-11-16 12:39:32,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 619 events. 32/619 cut-off events. For 112/192 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2530 event pairs, 6 based on Foata normal form. 628/1159 useless extension candidates. Maximal degree in co-relation 465. Up to 71 conditions per place. [2022-11-16 12:39:32,137 INFO L137 encePairwiseOnDemand]: 222/258 looper letters, 23 selfloop transitions, 4 changer transitions 0/235 dead transitions. [2022-11-16 12:39:32,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 235 transitions, 568 flow [2022-11-16 12:39:32,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:32,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:32,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1118 transitions. [2022-11-16 12:39:32,141 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2022-11-16 12:39:32,141 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1118 transitions. [2022-11-16 12:39:32,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1118 transitions. [2022-11-16 12:39:32,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:32,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1118 transitions. [2022-11-16 12:39:32,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 223.6) internal successors, (1118), 5 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:32,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:32,148 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:32,148 INFO L175 Difference]: Start difference. First operand has 231 places, 258 transitions, 560 flow. Second operand 5 states and 1118 transitions. [2022-11-16 12:39:32,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 235 transitions, 568 flow [2022-11-16 12:39:32,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 235 transitions, 568 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:39:32,155 INFO L231 Difference]: Finished difference. Result has 237 places, 231 transitions, 532 flow [2022-11-16 12:39:32,157 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=532, PETRI_PLACES=237, PETRI_TRANSITIONS=231} [2022-11-16 12:39:32,160 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 6 predicate places. [2022-11-16 12:39:32,160 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 231 transitions, 532 flow [2022-11-16 12:39:32,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 209.75) internal successors, (839), 4 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:32,161 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:32,161 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:32,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 12:39:32,161 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-16 12:39:32,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:32,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1907266850, now seen corresponding path program 1 times [2022-11-16 12:39:32,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:32,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972502803] [2022-11-16 12:39:32,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:32,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:32,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:32,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972502803] [2022-11-16 12:39:32,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972502803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:32,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:32,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:39:32,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195675085] [2022-11-16 12:39:32,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:32,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:39:32,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:32,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:39:32,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:39:32,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 258 [2022-11-16 12:39:32,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 231 transitions, 532 flow. Second operand has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:32,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:32,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 258 [2022-11-16 12:39:32,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:44,269 INFO L130 PetriNetUnfolder]: 15691/57481 cut-off events. [2022-11-16 12:39:44,269 INFO L131 PetriNetUnfolder]: For 10487/11552 co-relation queries the response was YES. [2022-11-16 12:39:44,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83242 conditions, 57481 events. 15691/57481 cut-off events. For 10487/11552 co-relation queries the response was YES. Maximal size of possible extension queue 2228. Compared 832273 event pairs, 10209 based on Foata normal form. 1/49296 useless extension candidates. Maximal degree in co-relation 83165. Up to 15211 conditions per place. [2022-11-16 12:39:45,760 INFO L137 encePairwiseOnDemand]: 249/258 looper letters, 68 selfloop transitions, 10 changer transitions 0/278 dead transitions. [2022-11-16 12:39:45,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 278 transitions, 854 flow [2022-11-16 12:39:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:45,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1067 transitions. [2022-11-16 12:39:45,765 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8271317829457364 [2022-11-16 12:39:45,766 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1067 transitions. [2022-11-16 12:39:45,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1067 transitions. [2022-11-16 12:39:45,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:45,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1067 transitions. [2022-11-16 12:39:45,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 213.4) internal successors, (1067), 5 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:45,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:45,774 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:45,774 INFO L175 Difference]: Start difference. First operand has 237 places, 231 transitions, 532 flow. Second operand 5 states and 1067 transitions. [2022-11-16 12:39:45,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 278 transitions, 854 flow [2022-11-16 12:39:45,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 278 transitions, 852 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:39:45,788 INFO L231 Difference]: Finished difference. Result has 243 places, 240 transitions, 609 flow [2022-11-16 12:39:45,788 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=609, PETRI_PLACES=243, PETRI_TRANSITIONS=240} [2022-11-16 12:39:45,789 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 12 predicate places. [2022-11-16 12:39:45,789 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 240 transitions, 609 flow [2022-11-16 12:39:45,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:45,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:45,790 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:45,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 12:39:45,791 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-16 12:39:45,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:45,792 INFO L85 PathProgramCache]: Analyzing trace with hash 411342551, now seen corresponding path program 1 times [2022-11-16 12:39:45,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:45,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137814553] [2022-11-16 12:39:45,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:45,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:39:45,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:45,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137814553] [2022-11-16 12:39:45,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137814553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:45,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:45,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:39:45,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455629604] [2022-11-16 12:39:45,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:45,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:39:45,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:45,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:39:45,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:39:45,864 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 258 [2022-11-16 12:39:45,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 240 transitions, 609 flow. Second operand has 4 states, 4 states have (on average 211.75) internal successors, (847), 4 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:45,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:45,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 258 [2022-11-16 12:39:45,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:46,672 INFO L130 PetriNetUnfolder]: 164/2222 cut-off events. [2022-11-16 12:39:46,673 INFO L131 PetriNetUnfolder]: For 575/1438 co-relation queries the response was YES. [2022-11-16 12:39:46,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2847 conditions, 2222 events. 164/2222 cut-off events. For 575/1438 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 17854 event pairs, 48 based on Foata normal form. 90/1978 useless extension candidates. Maximal degree in co-relation 2075. Up to 171 conditions per place. [2022-11-16 12:39:46,744 INFO L137 encePairwiseOnDemand]: 252/258 looper letters, 15 selfloop transitions, 8 changer transitions 0/240 dead transitions. [2022-11-16 12:39:46,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 240 transitions, 653 flow [2022-11-16 12:39:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:46,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:46,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1061 transitions. [2022-11-16 12:39:46,748 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8224806201550388 [2022-11-16 12:39:46,748 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1061 transitions. [2022-11-16 12:39:46,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1061 transitions. [2022-11-16 12:39:46,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:46,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1061 transitions. [2022-11-16 12:39:46,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 212.2) internal successors, (1061), 5 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:46,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:46,756 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:46,756 INFO L175 Difference]: Start difference. First operand has 243 places, 240 transitions, 609 flow. Second operand 5 states and 1061 transitions. [2022-11-16 12:39:46,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 240 transitions, 653 flow [2022-11-16 12:39:46,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 240 transitions, 648 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:39:46,765 INFO L231 Difference]: Finished difference. Result has 246 places, 240 transitions, 624 flow [2022-11-16 12:39:46,765 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=624, PETRI_PLACES=246, PETRI_TRANSITIONS=240} [2022-11-16 12:39:46,766 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 15 predicate places. [2022-11-16 12:39:46,766 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 240 transitions, 624 flow [2022-11-16 12:39:46,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 211.75) internal successors, (847), 4 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:46,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:46,768 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:46,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 12:39:46,768 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-16 12:39:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:46,769 INFO L85 PathProgramCache]: Analyzing trace with hash -133281858, now seen corresponding path program 1 times [2022-11-16 12:39:46,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:46,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783404322] [2022-11-16 12:39:46,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:46,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:46,888 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:46,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:46,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783404322] [2022-11-16 12:39:46,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783404322] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:39:46,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323704608] [2022-11-16 12:39:46,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:46,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:46,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:46,895 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:39:46,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:39:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:47,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:39:47,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:39:47,106 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:47,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:39:47,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323704608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:47,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:39:47,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 12:39:47,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796088180] [2022-11-16 12:39:47,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:47,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:39:47,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:47,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:39:47,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:39:47,111 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 258 [2022-11-16 12:39:47,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 240 transitions, 624 flow. Second operand has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:47,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:47,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 258 [2022-11-16 12:39:47,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:47,919 INFO L130 PetriNetUnfolder]: 164/2219 cut-off events. [2022-11-16 12:39:47,919 INFO L131 PetriNetUnfolder]: For 593/1387 co-relation queries the response was YES. [2022-11-16 12:39:47,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2857 conditions, 2219 events. 164/2219 cut-off events. For 593/1387 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 17928 event pairs, 48 based on Foata normal form. 35/1920 useless extension candidates. Maximal degree in co-relation 2074. Up to 180 conditions per place. [2022-11-16 12:39:47,984 INFO L137 encePairwiseOnDemand]: 253/258 looper letters, 19 selfloop transitions, 6 changer transitions 0/242 dead transitions. [2022-11-16 12:39:47,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 242 transitions, 676 flow [2022-11-16 12:39:47,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:39:47,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:39:47,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1482 transitions. [2022-11-16 12:39:47,988 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8205980066445183 [2022-11-16 12:39:47,989 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1482 transitions. [2022-11-16 12:39:47,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1482 transitions. [2022-11-16 12:39:47,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:47,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1482 transitions. [2022-11-16 12:39:47,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 211.71428571428572) internal successors, (1482), 7 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:47,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 258.0) internal successors, (2064), 8 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:47,999 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 258.0) internal successors, (2064), 8 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:47,999 INFO L175 Difference]: Start difference. First operand has 246 places, 240 transitions, 624 flow. Second operand 7 states and 1482 transitions. [2022-11-16 12:39:47,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 242 transitions, 676 flow [2022-11-16 12:39:48,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 242 transitions, 664 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:39:48,007 INFO L231 Difference]: Finished difference. Result has 248 places, 239 transitions, 620 flow [2022-11-16 12:39:48,008 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=620, PETRI_PLACES=248, PETRI_TRANSITIONS=239} [2022-11-16 12:39:48,009 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 17 predicate places. [2022-11-16 12:39:48,009 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 239 transitions, 620 flow [2022-11-16 12:39:48,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:48,010 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:48,010 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:48,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 12:39:48,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c525210-5e25-4939-a5c6-8e419edf8d8b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:48,216 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-16 12:39:48,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:48,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1344236642, now seen corresponding path program 1 times [2022-11-16 12:39:48,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:48,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303964812] [2022-11-16 12:39:48,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:48,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:48,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:48,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303964812] [2022-11-16 12:39:48,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303964812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:48,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:48,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:39:48,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108052152] [2022-11-16 12:39:48,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:48,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:39:48,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:48,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:39:48,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:39:48,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 258 [2022-11-16 12:39:48,363 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 239 transitions, 620 flow. Second operand has 6 states, 6 states have (on average 193.5) internal successors, (1161), 6 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:48,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:48,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 258 [2022-11-16 12:39:48,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand