/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-commit-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 17:45:30,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 17:45:30,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 17:45:30,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 17:45:30,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 17:45:30,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 17:45:30,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 17:45:30,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 17:45:30,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 17:45:30,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 17:45:30,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 17:45:31,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 17:45:31,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 17:45:31,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 17:45:31,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 17:45:31,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 17:45:31,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 17:45:31,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 17:45:31,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 17:45:31,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 17:45:31,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 17:45:31,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 17:45:31,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 17:45:31,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 17:45:31,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 17:45:31,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 17:45:31,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 17:45:31,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 17:45:31,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 17:45:31,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 17:45:31,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 17:45:31,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 17:45:31,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 17:45:31,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 17:45:31,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 17:45:31,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 17:45:31,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 17:45:31,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 17:45:31,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 17:45:31,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 17:45:31,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 17:45:31,040 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 17:45:31,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 17:45:31,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 17:45:31,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 17:45:31,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 17:45:31,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 17:45:31,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 17:45:31,068 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 17:45:31,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 17:45:31,069 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 17:45:31,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 17:45:31,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 17:45:31,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 17:45:31,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 17:45:31,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 17:45:31,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 17:45:31,070 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 17:45:31,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 17:45:31,071 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 17:45:31,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 17:45:31,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 17:45:31,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 17:45:31,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 17:45:31,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 17:45:31,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:45:31,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 17:45:31,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 17:45:31,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 17:45:31,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 17:45:31,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 17:45:31,072 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 17:45:31,073 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 17:45:31,073 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 17:45:31,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 17:45:31,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 17:45:31,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 17:45:31,411 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 17:45:31,412 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 17:45:31,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-commit-1.wvr.c [2022-12-06 17:45:32,496 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 17:45:32,717 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 17:45:32,717 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-commit-1.wvr.c [2022-12-06 17:45:32,722 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076fffa16/6586d7b417b849dd9ee8122f75565a26/FLAG275cef3ca [2022-12-06 17:45:32,735 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076fffa16/6586d7b417b849dd9ee8122f75565a26 [2022-12-06 17:45:32,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 17:45:32,738 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 17:45:32,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 17:45:32,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 17:45:32,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 17:45:32,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:45:32" (1/1) ... [2022-12-06 17:45:32,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245f5771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:32, skipping insertion in model container [2022-12-06 17:45:32,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:45:32" (1/1) ... [2022-12-06 17:45:32,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 17:45:32,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 17:45:32,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:32,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:32,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:32,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:32,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:32,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:32,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:32,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:32,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:32,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:32,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:32,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:32,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:32,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:32,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:32,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:32,975 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-commit-1.wvr.c[4604,4617] [2022-12-06 17:45:32,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:45:32,992 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 17:45:33,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:33,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:33,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:33,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:33,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:33,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:33,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:33,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:33,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:33,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:33,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:33,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:33,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:33,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:33,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:45:33,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:45:33,030 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-commit-1.wvr.c[4604,4617] [2022-12-06 17:45:33,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:45:33,056 INFO L208 MainTranslator]: Completed translation [2022-12-06 17:45:33,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33 WrapperNode [2022-12-06 17:45:33,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 17:45:33,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 17:45:33,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 17:45:33,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 17:45:33,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (1/1) ... [2022-12-06 17:45:33,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (1/1) ... [2022-12-06 17:45:33,126 INFO L138 Inliner]: procedures = 25, calls = 68, calls flagged for inlining = 20, calls inlined = 24, statements flattened = 333 [2022-12-06 17:45:33,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 17:45:33,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 17:45:33,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 17:45:33,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 17:45:33,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (1/1) ... [2022-12-06 17:45:33,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (1/1) ... [2022-12-06 17:45:33,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (1/1) ... [2022-12-06 17:45:33,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (1/1) ... [2022-12-06 17:45:33,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (1/1) ... [2022-12-06 17:45:33,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (1/1) ... [2022-12-06 17:45:33,165 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (1/1) ... [2022-12-06 17:45:33,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (1/1) ... [2022-12-06 17:45:33,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 17:45:33,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 17:45:33,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 17:45:33,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 17:45:33,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (1/1) ... [2022-12-06 17:45:33,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:45:33,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:45:33,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 17:45:33,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 17:45:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 17:45:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 17:45:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 17:45:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 17:45:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 17:45:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 17:45:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 17:45:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 17:45:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 17:45:33,241 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 17:45:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 17:45:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 17:45:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 17:45:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 17:45:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 17:45:33,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 17:45:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 17:45:33,244 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 17:45:33,432 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 17:45:33,434 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 17:45:33,805 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 17:45:34,098 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 17:45:34,098 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-06 17:45:34,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:45:34 BoogieIcfgContainer [2022-12-06 17:45:34,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 17:45:34,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 17:45:34,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 17:45:34,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 17:45:34,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:45:32" (1/3) ... [2022-12-06 17:45:34,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1863574a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:45:34, skipping insertion in model container [2022-12-06 17:45:34,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:33" (2/3) ... [2022-12-06 17:45:34,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1863574a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:45:34, skipping insertion in model container [2022-12-06 17:45:34,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:45:34" (3/3) ... [2022-12-06 17:45:34,108 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-1.wvr.c [2022-12-06 17:45:34,124 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 17:45:34,124 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 17:45:34,124 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 17:45:34,263 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 17:45:34,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 234 transitions, 492 flow [2022-12-06 17:45:34,441 INFO L130 PetriNetUnfolder]: 19/231 cut-off events. [2022-12-06 17:45:34,442 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 17:45:34,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 231 events. 19/231 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 132 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 196. Up to 2 conditions per place. [2022-12-06 17:45:34,450 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 234 transitions, 492 flow [2022-12-06 17:45:34,461 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 212 places, 221 transitions, 460 flow [2022-12-06 17:45:34,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 17:45:34,486 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=false, 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;@1673a132, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 17:45:34,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 17:45:34,554 INFO L130 PetriNetUnfolder]: 19/220 cut-off events. [2022-12-06 17:45:34,554 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 17:45:34,555 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:34,556 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:34,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:34,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:34,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1404078884, now seen corresponding path program 1 times [2022-12-06 17:45:34,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:34,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563642965] [2022-12-06 17:45:34,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:34,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:34,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:45:34,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:34,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563642965] [2022-12-06 17:45:34,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563642965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:45:34,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:45:34,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 17:45:34,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816570444] [2022-12-06 17:45:34,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:45:34,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-06 17:45:34,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:45:34,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-06 17:45:34,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-06 17:45:34,975 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 234 [2022-12-06 17:45:34,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 221 transitions, 460 flow. Second operand has 2 states, 2 states have (on average 210.5) internal successors, (421), 2 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:34,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:45:34,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 234 [2022-12-06 17:45:34,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:45:35,084 INFO L130 PetriNetUnfolder]: 66/292 cut-off events. [2022-12-06 17:45:35,084 INFO L131 PetriNetUnfolder]: For 34/35 co-relation queries the response was YES. [2022-12-06 17:45:35,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 292 events. 66/292 cut-off events. For 34/35 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 437 event pairs, 31 based on Foata normal form. 42/312 useless extension candidates. Maximal degree in co-relation 233. Up to 99 conditions per place. [2022-12-06 17:45:35,090 INFO L137 encePairwiseOnDemand]: 221/234 looper letters, 14 selfloop transitions, 0 changer transitions 7/208 dead transitions. [2022-12-06 17:45:35,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 208 transitions, 462 flow [2022-12-06 17:45:35,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-06 17:45:35,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-06 17:45:35,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 439 transitions. [2022-12-06 17:45:35,108 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.938034188034188 [2022-12-06 17:45:35,113 INFO L294 CegarLoopForPetriNet]: 212 programPoint places, 1 predicate places. [2022-12-06 17:45:35,114 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 208 transitions, 462 flow [2022-12-06 17:45:35,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 210.5) internal successors, (421), 2 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:35,115 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:35,115 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:35,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 17:45:35,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:35,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:35,120 INFO L85 PathProgramCache]: Analyzing trace with hash -140577876, now seen corresponding path program 1 times [2022-12-06 17:45:35,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:35,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014068570] [2022-12-06 17:45:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:35,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:35,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:45:35,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:35,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014068570] [2022-12-06 17:45:35,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014068570] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:45:35,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:45:35,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 17:45:35,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231450846] [2022-12-06 17:45:35,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:45:35,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 17:45:35,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:45:35,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 17:45:35,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 17:45:35,734 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 234 [2022-12-06 17:45:35,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 208 transitions, 462 flow. Second operand has 5 states, 5 states have (on average 176.2) internal successors, (881), 5 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:35,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:45:35,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 234 [2022-12-06 17:45:35,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:45:35,942 INFO L130 PetriNetUnfolder]: 79/382 cut-off events. [2022-12-06 17:45:35,943 INFO L131 PetriNetUnfolder]: For 125/197 co-relation queries the response was YES. [2022-12-06 17:45:35,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 382 events. 79/382 cut-off events. For 125/197 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 925 event pairs, 27 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 385. Up to 121 conditions per place. [2022-12-06 17:45:35,949 INFO L137 encePairwiseOnDemand]: 220/234 looper letters, 48 selfloop transitions, 4 changer transitions 12/221 dead transitions. [2022-12-06 17:45:35,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 221 transitions, 649 flow [2022-12-06 17:45:35,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 17:45:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 17:45:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1248 transitions. [2022-12-06 17:45:35,954 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7619047619047619 [2022-12-06 17:45:35,955 INFO L294 CegarLoopForPetriNet]: 212 programPoint places, 7 predicate places. [2022-12-06 17:45:35,955 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 221 transitions, 649 flow [2022-12-06 17:45:35,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 176.2) internal successors, (881), 5 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:35,956 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:35,956 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:35,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 17:45:35,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:35,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:35,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1022879291, now seen corresponding path program 1 times [2022-12-06 17:45:35,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:35,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140358943] [2022-12-06 17:45:35,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:35,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:45:36,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:36,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140358943] [2022-12-06 17:45:36,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140358943] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:45:36,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:45:36,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 17:45:36,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053828073] [2022-12-06 17:45:36,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:45:36,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 17:45:36,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:45:36,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 17:45:36,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 17:45:36,276 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 234 [2022-12-06 17:45:36,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 221 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 173.66666666666666) internal successors, (1042), 6 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:36,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:45:36,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 234 [2022-12-06 17:45:36,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:45:36,490 INFO L130 PetriNetUnfolder]: 83/540 cut-off events. [2022-12-06 17:45:36,490 INFO L131 PetriNetUnfolder]: For 307/427 co-relation queries the response was YES. [2022-12-06 17:45:36,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 540 events. 83/540 cut-off events. For 307/427 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1583 event pairs, 27 based on Foata normal form. 13/506 useless extension candidates. Maximal degree in co-relation 577. Up to 145 conditions per place. [2022-12-06 17:45:36,493 INFO L137 encePairwiseOnDemand]: 222/234 looper letters, 56 selfloop transitions, 8 changer transitions 46/259 dead transitions. [2022-12-06 17:45:36,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 259 transitions, 991 flow [2022-12-06 17:45:36,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:45:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:45:36,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1603 transitions. [2022-12-06 17:45:36,499 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7611585944919278 [2022-12-06 17:45:36,500 INFO L294 CegarLoopForPetriNet]: 212 programPoint places, 15 predicate places. [2022-12-06 17:45:36,500 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 259 transitions, 991 flow [2022-12-06 17:45:36,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.66666666666666) internal successors, (1042), 6 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:36,501 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:36,501 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:36,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 17:45:36,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:36,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:36,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1310821333, now seen corresponding path program 1 times [2022-12-06 17:45:36,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:36,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540006479] [2022-12-06 17:45:36,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:36,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 17:45:36,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:36,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540006479] [2022-12-06 17:45:36,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540006479] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:45:36,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:45:36,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 17:45:36,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744792388] [2022-12-06 17:45:36,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:45:36,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 17:45:36,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:45:36,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 17:45:36,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 17:45:36,797 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 234 [2022-12-06 17:45:36,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 259 transitions, 991 flow. Second operand has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:36,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:45:36,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 234 [2022-12-06 17:45:36,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:45:36,950 INFO L130 PetriNetUnfolder]: 86/581 cut-off events. [2022-12-06 17:45:36,950 INFO L131 PetriNetUnfolder]: For 522/702 co-relation queries the response was YES. [2022-12-06 17:45:36,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1360 conditions, 581 events. 86/581 cut-off events. For 522/702 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1851 event pairs, 33 based on Foata normal form. 16/549 useless extension candidates. Maximal degree in co-relation 639. Up to 161 conditions per place. [2022-12-06 17:45:36,955 INFO L137 encePairwiseOnDemand]: 231/234 looper letters, 32 selfloop transitions, 2 changer transitions 43/264 dead transitions. [2022-12-06 17:45:36,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 264 transitions, 1122 flow [2022-12-06 17:45:36,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 17:45:36,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 17:45:36,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 634 transitions. [2022-12-06 17:45:36,957 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9031339031339032 [2022-12-06 17:45:36,959 INFO L294 CegarLoopForPetriNet]: 212 programPoint places, 17 predicate places. [2022-12-06 17:45:36,960 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 264 transitions, 1122 flow [2022-12-06 17:45:36,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:36,960 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:36,960 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:36,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 17:45:36,961 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:36,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:36,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1097956457, now seen corresponding path program 1 times [2022-12-06 17:45:36,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:36,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733272395] [2022-12-06 17:45:36,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:36,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 17:45:37,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:37,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733272395] [2022-12-06 17:45:37,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733272395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:45:37,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:45:37,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 17:45:37,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318504765] [2022-12-06 17:45:37,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:45:37,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 17:45:37,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:45:37,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 17:45:37,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 17:45:37,226 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 234 [2022-12-06 17:45:37,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 264 transitions, 1122 flow. Second operand has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:37,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:45:37,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 234 [2022-12-06 17:45:37,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:45:37,373 INFO L130 PetriNetUnfolder]: 98/579 cut-off events. [2022-12-06 17:45:37,373 INFO L131 PetriNetUnfolder]: For 647/813 co-relation queries the response was YES. [2022-12-06 17:45:37,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 579 events. 98/579 cut-off events. For 647/813 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1850 event pairs, 11 based on Foata normal form. 9/551 useless extension candidates. Maximal degree in co-relation 926. Up to 180 conditions per place. [2022-12-06 17:45:37,377 INFO L137 encePairwiseOnDemand]: 231/234 looper letters, 31 selfloop transitions, 2 changer transitions 45/265 dead transitions. [2022-12-06 17:45:37,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 265 transitions, 1213 flow [2022-12-06 17:45:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 17:45:37,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 17:45:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 637 transitions. [2022-12-06 17:45:37,379 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9074074074074074 [2022-12-06 17:45:37,381 INFO L294 CegarLoopForPetriNet]: 212 programPoint places, 19 predicate places. [2022-12-06 17:45:37,381 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 265 transitions, 1213 flow [2022-12-06 17:45:37,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:37,382 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:37,382 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:37,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 17:45:37,383 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:37,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:37,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1487805024, now seen corresponding path program 1 times [2022-12-06 17:45:37,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:37,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005611697] [2022-12-06 17:45:37,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:37,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 17:45:37,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:37,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005611697] [2022-12-06 17:45:37,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005611697] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:45:37,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:45:37,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 17:45:37,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315233872] [2022-12-06 17:45:37,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:45:37,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 17:45:37,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:45:37,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 17:45:37,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 17:45:37,613 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 234 [2022-12-06 17:45:37,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 265 transitions, 1213 flow. Second operand has 6 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:37,615 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:45:37,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 234 [2022-12-06 17:45:37,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:45:37,931 INFO L130 PetriNetUnfolder]: 124/898 cut-off events. [2022-12-06 17:45:37,931 INFO L131 PetriNetUnfolder]: For 1548/1997 co-relation queries the response was YES. [2022-12-06 17:45:37,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2631 conditions, 898 events. 124/898 cut-off events. For 1548/1997 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4044 event pairs, 39 based on Foata normal form. 7/839 useless extension candidates. Maximal degree in co-relation 1281. Up to 248 conditions per place. [2022-12-06 17:45:37,937 INFO L137 encePairwiseOnDemand]: 224/234 looper letters, 67 selfloop transitions, 8 changer transitions 99/323 dead transitions. [2022-12-06 17:45:37,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 323 transitions, 2019 flow [2022-12-06 17:45:37,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:45:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:45:37,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1594 transitions. [2022-12-06 17:45:37,941 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7568850902184235 [2022-12-06 17:45:37,944 INFO L294 CegarLoopForPetriNet]: 212 programPoint places, 27 predicate places. [2022-12-06 17:45:37,944 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 323 transitions, 2019 flow [2022-12-06 17:45:37,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:37,945 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:37,945 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:37,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 17:45:37,946 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:37,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:37,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1338209114, now seen corresponding path program 1 times [2022-12-06 17:45:37,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:37,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496874544] [2022-12-06 17:45:37,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:37,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:38,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 17:45:38,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:38,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496874544] [2022-12-06 17:45:38,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496874544] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:45:38,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:45:38,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 17:45:38,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119247401] [2022-12-06 17:45:38,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:45:38,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 17:45:38,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:45:38,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 17:45:38,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 17:45:38,189 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 234 [2022-12-06 17:45:38,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 323 transitions, 2019 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:38,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:45:38,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 234 [2022-12-06 17:45:38,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:45:38,511 INFO L130 PetriNetUnfolder]: 134/1120 cut-off events. [2022-12-06 17:45:38,511 INFO L131 PetriNetUnfolder]: For 3295/4071 co-relation queries the response was YES. [2022-12-06 17:45:38,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3636 conditions, 1120 events. 134/1120 cut-off events. For 3295/4071 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5901 event pairs, 27 based on Foata normal form. 8/1055 useless extension candidates. Maximal degree in co-relation 1775. Up to 294 conditions per place. [2022-12-06 17:45:38,517 INFO L137 encePairwiseOnDemand]: 226/234 looper letters, 73 selfloop transitions, 6 changer transitions 149/377 dead transitions. [2022-12-06 17:45:38,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 377 transitions, 3133 flow [2022-12-06 17:45:38,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 17:45:38,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 17:45:38,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1242 transitions. [2022-12-06 17:45:38,520 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7582417582417582 [2022-12-06 17:45:38,521 INFO L294 CegarLoopForPetriNet]: 212 programPoint places, 33 predicate places. [2022-12-06 17:45:38,521 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 377 transitions, 3133 flow [2022-12-06 17:45:38,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:38,522 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:38,522 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:38,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 17:45:38,522 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:38,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:38,522 INFO L85 PathProgramCache]: Analyzing trace with hash 181546176, now seen corresponding path program 1 times [2022-12-06 17:45:38,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:38,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055332247] [2022-12-06 17:45:38,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:38,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:38,859 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 17:45:38,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:38,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055332247] [2022-12-06 17:45:38,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055332247] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:45:38,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:45:38,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 17:45:38,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220948103] [2022-12-06 17:45:38,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:45:38,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 17:45:38,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:45:38,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 17:45:38,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 17:45:38,862 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 234 [2022-12-06 17:45:38,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 377 transitions, 3133 flow. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:38,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:45:38,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 234 [2022-12-06 17:45:38,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:45:39,090 INFO L130 PetriNetUnfolder]: 65/984 cut-off events. [2022-12-06 17:45:39,091 INFO L131 PetriNetUnfolder]: For 3083/3181 co-relation queries the response was YES. [2022-12-06 17:45:39,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 984 events. 65/984 cut-off events. For 3083/3181 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4822 event pairs, 11 based on Foata normal form. 12/927 useless extension candidates. Maximal degree in co-relation 1257. Up to 181 conditions per place. [2022-12-06 17:45:39,095 INFO L137 encePairwiseOnDemand]: 227/234 looper letters, 22 selfloop transitions, 6 changer transitions 145/365 dead transitions. [2022-12-06 17:45:39,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 365 transitions, 3105 flow [2022-12-06 17:45:39,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 17:45:39,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 17:45:39,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 623 transitions. [2022-12-06 17:45:39,098 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8874643874643875 [2022-12-06 17:45:39,099 INFO L294 CegarLoopForPetriNet]: 212 programPoint places, 35 predicate places. [2022-12-06 17:45:39,099 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 365 transitions, 3105 flow [2022-12-06 17:45:39,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:39,100 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:39,100 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:39,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 17:45:39,101 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:39,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:39,101 INFO L85 PathProgramCache]: Analyzing trace with hash 620844897, now seen corresponding path program 1 times [2022-12-06 17:45:39,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:39,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448744411] [2022-12-06 17:45:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:39,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:39,379 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 17:45:39,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:39,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448744411] [2022-12-06 17:45:39,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448744411] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:45:39,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:45:39,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 17:45:39,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809117712] [2022-12-06 17:45:39,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:45:39,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 17:45:39,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:45:39,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 17:45:39,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-06 17:45:39,382 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 234 [2022-12-06 17:45:39,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 365 transitions, 3105 flow. Second operand has 5 states, 5 states have (on average 202.8) internal successors, (1014), 5 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:39,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:45:39,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 234 [2022-12-06 17:45:39,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:45:39,687 INFO L130 PetriNetUnfolder]: 149/1326 cut-off events. [2022-12-06 17:45:39,687 INFO L131 PetriNetUnfolder]: For 5933/6387 co-relation queries the response was YES. [2022-12-06 17:45:39,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4647 conditions, 1326 events. 149/1326 cut-off events. For 5933/6387 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7060 event pairs, 21 based on Foata normal form. 10/1225 useless extension candidates. Maximal degree in co-relation 2419. Up to 327 conditions per place. [2022-12-06 17:45:39,696 INFO L137 encePairwiseOnDemand]: 225/234 looper letters, 39 selfloop transitions, 16 changer transitions 150/397 dead transitions. [2022-12-06 17:45:39,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 397 transitions, 3945 flow [2022-12-06 17:45:39,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 17:45:39,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 17:45:39,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1038 transitions. [2022-12-06 17:45:39,699 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8871794871794871 [2022-12-06 17:45:39,700 INFO L294 CegarLoopForPetriNet]: 212 programPoint places, 39 predicate places. [2022-12-06 17:45:39,701 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 397 transitions, 3945 flow [2022-12-06 17:45:39,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.8) internal successors, (1014), 5 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:39,701 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:39,702 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:39,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 17:45:39,702 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:39,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:39,702 INFO L85 PathProgramCache]: Analyzing trace with hash -951350524, now seen corresponding path program 1 times [2022-12-06 17:45:39,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:39,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925411229] [2022-12-06 17:45:39,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:39,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:40,067 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 17:45:40,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:40,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925411229] [2022-12-06 17:45:40,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925411229] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 17:45:40,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004891982] [2022-12-06 17:45:40,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:40,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:45:40,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:45:40,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 17:45:40,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 17:45:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:40,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-06 17:45:40,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 17:45:40,659 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 17:45:40,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 17:45:40,996 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 17:45:40,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004891982] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 17:45:40,997 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 17:45:40,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-06 17:45:40,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923491542] [2022-12-06 17:45:40,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 17:45:40,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 17:45:40,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:45:40,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 17:45:40,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-12-06 17:45:41,002 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 234 [2022-12-06 17:45:41,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 397 transitions, 3945 flow. Second operand has 19 states, 19 states have (on average 167.57894736842104) internal successors, (3184), 19 states have internal predecessors, (3184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:41,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:45:41,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 234 [2022-12-06 17:45:41,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:45:41,730 INFO L130 PetriNetUnfolder]: 160/1733 cut-off events. [2022-12-06 17:45:41,731 INFO L131 PetriNetUnfolder]: For 9063/9539 co-relation queries the response was YES. [2022-12-06 17:45:41,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6331 conditions, 1733 events. 160/1733 cut-off events. For 9063/9539 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 10607 event pairs, 21 based on Foata normal form. 2/1599 useless extension candidates. Maximal degree in co-relation 2634. Up to 429 conditions per place. [2022-12-06 17:45:41,740 INFO L137 encePairwiseOnDemand]: 215/234 looper letters, 86 selfloop transitions, 22 changer transitions 250/502 dead transitions. [2022-12-06 17:45:41,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 502 transitions, 6085 flow [2022-12-06 17:45:41,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:45:41,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:45:41,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3399 transitions. [2022-12-06 17:45:41,748 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7262820512820513 [2022-12-06 17:45:41,749 INFO L294 CegarLoopForPetriNet]: 212 programPoint places, 58 predicate places. [2022-12-06 17:45:41,749 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 502 transitions, 6085 flow [2022-12-06 17:45:41,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 167.57894736842104) internal successors, (3184), 19 states have internal predecessors, (3184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:41,752 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:41,752 INFO L213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:41,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 17:45:41,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-06 17:45:41,960 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:41,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:41,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1128461464, now seen corresponding path program 2 times [2022-12-06 17:45:41,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:41,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909269164] [2022-12-06 17:45:41,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:41,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-06 17:45:42,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:42,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909269164] [2022-12-06 17:45:42,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909269164] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 17:45:42,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361781368] [2022-12-06 17:45:42,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 17:45:42,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:45:42,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:45:42,461 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 17:45:42,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 17:45:42,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 17:45:42,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 17:45:42,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-06 17:45:42,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 17:45:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-06 17:45:42,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 17:45:43,288 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-06 17:45:43,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361781368] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 17:45:43,288 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 17:45:43,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-06 17:45:43,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299472059] [2022-12-06 17:45:43,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 17:45:43,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 17:45:43,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:45:43,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 17:45:43,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-12-06 17:45:43,292 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 234 [2022-12-06 17:45:43,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 502 transitions, 6085 flow. Second operand has 19 states, 19 states have (on average 167.47368421052633) internal successors, (3182), 19 states have internal predecessors, (3182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:43,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:45:43,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 234 [2022-12-06 17:45:43,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:45:44,092 INFO L130 PetriNetUnfolder]: 202/2438 cut-off events. [2022-12-06 17:45:44,093 INFO L131 PetriNetUnfolder]: For 15818/16456 co-relation queries the response was YES. [2022-12-06 17:45:44,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9576 conditions, 2438 events. 202/2438 cut-off events. For 15818/16456 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 17497 event pairs, 22 based on Foata normal form. 41/2297 useless extension candidates. Maximal degree in co-relation 3216. Up to 599 conditions per place. [2022-12-06 17:45:44,104 INFO L137 encePairwiseOnDemand]: 216/234 looper letters, 90 selfloop transitions, 23 changer transitions 402/659 dead transitions. [2022-12-06 17:45:44,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 659 transitions, 9809 flow [2022-12-06 17:45:44,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:45:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:45:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3039 transitions. [2022-12-06 17:45:44,111 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7215099715099715 [2022-12-06 17:45:44,111 INFO L294 CegarLoopForPetriNet]: 212 programPoint places, 75 predicate places. [2022-12-06 17:45:44,111 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 659 transitions, 9809 flow [2022-12-06 17:45:44,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 167.47368421052633) internal successors, (3182), 19 states have internal predecessors, (3182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:45:44,113 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:45:44,113 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:45:44,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 17:45:44,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-06 17:45:44,321 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 17:45:44,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:45:44,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1337843664, now seen corresponding path program 3 times [2022-12-06 17:45:44,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:45:44,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084207520] [2022-12-06 17:45:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:45:44,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:45:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:45:51,896 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:45:51,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:45:51,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084207520] [2022-12-06 17:45:51,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084207520] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 17:45:51,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135737326] [2022-12-06 17:45:51,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 17:45:51,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:45:51,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:45:51,900 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 17:45:51,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 17:45:52,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-06 17:45:52,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 17:45:52,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 124 conjunts are in the unsatisfiable core [2022-12-06 17:45:52,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 17:45:55,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-06 17:45:56,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 17:45:56,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 17:45:57,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 17:45:58,658 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 17:45:58,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 17:46:09,510 WARN L233 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 17:46:58,001 WARN L233 SmtUtils]: Spent 44.18s on a formula simplification. DAG size of input: 60 DAG size of output: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 17:47:10,281 WARN L233 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 65 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 17:48:14,978 WARN L233 SmtUtils]: Spent 1.07m on a formula simplification. DAG size of input: 75 DAG size of output: 72 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 17:48:35,330 WARN L233 SmtUtils]: Spent 20.07s on a formula simplification that was a NOOP. DAG size: 82 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 17:48:50,817 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 17:48:50,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 90 [2022-12-06 17:48:50,909 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 17:48:50,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 139757 treesize of output 129102 [2022-12-06 17:48:51,334 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 17:48:51,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 129005 treesize of output 96319 [2022-12-06 17:48:51,715 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 17:48:51,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 96237 treesize of output 79935 [2022-12-06 17:48:52,181 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 17:48:52,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 79853 treesize of output 71743 [2022-12-06 17:49:39,627 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 17:49:39,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 187 treesize of output 127 [2022-12-06 17:49:39,763 INFO L321 Elim1Store]: treesize reduction 9, result has 94.4 percent of original size [2022-12-06 17:49:39,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 27362 treesize of output 25402 [2022-12-06 17:49:39,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 17:49:39,981 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 17:49:39,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 25250 treesize of output 18978 [2022-12-06 17:49:40,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 17:49:40,154 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 17:49:40,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 18850 treesize of output 17378 [2022-12-06 17:49:40,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 17:49:40,318 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 17:49:40,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 17250 treesize of output 14178 Received shutdown request... [2022-12-06 17:59:20,869 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 17:59:20,873 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 17:59:20,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 17:59:20,910 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 17:59:21,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:59:21,072 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 216 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while QuantifierPusher was running 1 iterations on subformula. [2022-12-06 17:59:21,073 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 17:59:21,073 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 17:59:21,073 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 17:59:21,074 INFO L458 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:59:21,078 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 17:59:21,078 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 17:59:21,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:59:21 BasicIcfg [2022-12-06 17:59:21,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 17:59:21,081 INFO L158 Benchmark]: Toolchain (without parser) took 828343.77ms. Allocated memory was 203.4MB in the beginning and 939.5MB in the end (delta: 736.1MB). Free memory was 180.5MB in the beginning and 584.1MB in the end (delta: -403.6MB). Peak memory consumption was 608.6MB. Max. memory is 8.0GB. [2022-12-06 17:59:21,082 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory is still 180.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 17:59:21,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.12ms. Allocated memory is still 203.4MB. Free memory was 180.5MB in the beginning and 165.4MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 17:59:21,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.22ms. Allocated memory is still 203.4MB. Free memory was 165.4MB in the beginning and 162.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 17:59:21,082 INFO L158 Benchmark]: Boogie Preprocessor took 42.28ms. Allocated memory is still 203.4MB. Free memory was 162.8MB in the beginning and 160.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 17:59:21,082 INFO L158 Benchmark]: RCFGBuilder took 930.26ms. Allocated memory is still 203.4MB. Free memory was 160.2MB in the beginning and 110.9MB in the end (delta: 49.3MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. [2022-12-06 17:59:21,083 INFO L158 Benchmark]: TraceAbstraction took 826978.70ms. Allocated memory was 203.4MB in the beginning and 939.5MB in the end (delta: 736.1MB). Free memory was 110.4MB in the beginning and 584.1MB in the end (delta: -473.7MB). Peak memory consumption was 538.4MB. Max. memory is 8.0GB. [2022-12-06 17:59:21,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory is still 180.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 318.12ms. Allocated memory is still 203.4MB. Free memory was 180.5MB in the beginning and 165.4MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.22ms. Allocated memory is still 203.4MB. Free memory was 165.4MB in the beginning and 162.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.28ms. Allocated memory is still 203.4MB. Free memory was 162.8MB in the beginning and 160.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 930.26ms. Allocated memory is still 203.4MB. Free memory was 160.2MB in the beginning and 110.9MB in the end (delta: 49.3MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. * TraceAbstraction took 826978.70ms. Allocated memory was 203.4MB in the beginning and 939.5MB in the end (delta: 736.1MB). Free memory was 110.4MB in the beginning and 584.1MB in the end (delta: -473.7MB). Peak memory consumption was 538.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 216 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while QuantifierPusher was running 1 iterations on subformula. - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 216 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while QuantifierPusher was running 1 iterations on subformula. - TimeoutResultAtElement [Line: 140]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 216 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while QuantifierPusher was running 1 iterations on subformula. - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 216 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while QuantifierPusher was running 1 iterations on subformula. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 245 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 826.8s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 846 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 846 mSDsluCounter, 671 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 466 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1509 IncrementalHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 205 mSDtfsCounter, 1509 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 911 GetRequests, 816 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9809occurred in iteration=11, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2426 NumberOfCodeBlocks, 2426 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2820 ConstructedInterpolants, 0 QuantifiedInterpolants, 7390 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1067 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 69/79 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown