/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 --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 00:38:33,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 00:38:33,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 00:38:33,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 00:38:33,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 00:38:33,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 00:38:33,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 00:38:33,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 00:38:33,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 00:38:33,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 00:38:33,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 00:38:33,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 00:38:33,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 00:38:33,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 00:38:33,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 00:38:33,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 00:38:33,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 00:38:33,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 00:38:33,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 00:38:33,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 00:38:33,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 00:38:33,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 00:38:33,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 00:38:33,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 00:38:33,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 00:38:33,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 00:38:33,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 00:38:33,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 00:38:33,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 00:38:33,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 00:38:33,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 00:38:33,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 00:38:33,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 00:38:33,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 00:38:33,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 00:38:33,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 00:38:33,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 00:38:33,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 00:38:33,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 00:38:33,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 00:38:33,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 00:38:33,190 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 [2022-12-12 00:38:33,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 00:38:33,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 00:38:33,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 00:38:33,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 00:38:33,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 00:38:33,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 00:38:33,215 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 00:38:33,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 00:38:33,216 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 00:38:33,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 00:38:33,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 00:38:33,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 00:38:33,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 00:38:33,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 00:38:33,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 00:38:33,217 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 00:38:33,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 00:38:33,217 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 00:38:33,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 00:38:33,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 00:38:33,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 00:38:33,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 00:38:33,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 00:38:33,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:38:33,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 00:38:33,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 00:38:33,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 00:38:33,218 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 00:38:33,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 00:38:33,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 00:38:33,218 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 00:38:33,218 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 00:38:33,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 00:38:33,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 00:38:33,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 00:38:33,463 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 00:38:33,463 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 00:38:33,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-12-12 00:38:34,379 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 00:38:34,590 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 00:38:34,590 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-12-12 00:38:34,617 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483f16642/667fc12522ce4d27883dd688976d8656/FLAG4b46bb4d9 [2022-12-12 00:38:34,633 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483f16642/667fc12522ce4d27883dd688976d8656 [2022-12-12 00:38:34,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 00:38:34,635 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 00:38:34,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 00:38:34,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 00:38:34,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 00:38:34,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541ea287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34, skipping insertion in model container [2022-12-12 00:38:34,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 00:38:34,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 00:38:34,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,803 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/parallel-ticket-3.wvr.c[3089,3102] [2022-12-12 00:38:34,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:38:34,814 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 00:38:34,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,827 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,827 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 00:38:34,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 00:38:34,847 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/parallel-ticket-3.wvr.c[3089,3102] [2022-12-12 00:38:34,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:38:34,858 INFO L208 MainTranslator]: Completed translation [2022-12-12 00:38:34,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34 WrapperNode [2022-12-12 00:38:34,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 00:38:34,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 00:38:34,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 00:38:34,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 00:38:34,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,897 INFO L138 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 158 [2022-12-12 00:38:34,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 00:38:34,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 00:38:34,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 00:38:34,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 00:38:34,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,921 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 00:38:34,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 00:38:34,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 00:38:34,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 00:38:34,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (1/1) ... [2022-12-12 00:38:34,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:38:34,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:38:34,978 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) [2022-12-12 00:38:34,991 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 [2022-12-12 00:38:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 00:38:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 00:38:35,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 00:38:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 00:38:35,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 00:38:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 00:38:35,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 00:38:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 00:38:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 00:38:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 00:38:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 00:38:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 00:38:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 00:38:35,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 00:38:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 00:38:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 00:38:35,018 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 00:38:35,153 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 00:38:35,155 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 00:38:35,305 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 00:38:35,350 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 00:38:35,350 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 00:38:35,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:38:35 BoogieIcfgContainer [2022-12-12 00:38:35,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 00:38:35,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 00:38:35,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 00:38:35,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 00:38:35,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:38:34" (1/3) ... [2022-12-12 00:38:35,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c31432c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:38:35, skipping insertion in model container [2022-12-12 00:38:35,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:38:34" (2/3) ... [2022-12-12 00:38:35,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c31432c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:38:35, skipping insertion in model container [2022-12-12 00:38:35,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:38:35" (3/3) ... [2022-12-12 00:38:35,358 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2022-12-12 00:38:35,370 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 00:38:35,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 00:38:35,370 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 00:38:35,415 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 00:38:35,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 112 transitions, 248 flow [2022-12-12 00:38:35,475 INFO L130 PetriNetUnfolder]: 2/109 cut-off events. [2022-12-12 00:38:35,475 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 00:38:35,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 109 events. 2/109 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-12-12 00:38:35,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 112 transitions, 248 flow [2022-12-12 00:38:35,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 99 transitions, 216 flow [2022-12-12 00:38:35,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 00:38:35,492 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;@368a842, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 00:38:35,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 00:38:35,513 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2022-12-12 00:38:35,513 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 00:38:35,513 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:38:35,514 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:38:35,514 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)] === [2022-12-12 00:38:35,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:38:35,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1928227823, now seen corresponding path program 1 times [2022-12-12 00:38:35,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:38:35,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323532794] [2022-12-12 00:38:35,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:38:35,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:38:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:38:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:38:36,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:38:36,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323532794] [2022-12-12 00:38:36,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323532794] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:38:36,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:38:36,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:38:36,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478388772] [2022-12-12 00:38:36,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:38:36,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:38:36,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:38:36,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:38:36,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:38:36,659 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 112 [2022-12-12 00:38:36,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 99 transitions, 216 flow. Second operand has 10 states, 10 states have (on average 79.1) internal successors, (791), 10 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:36,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:38:36,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 112 [2022-12-12 00:38:36,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:38:37,125 INFO L130 PetriNetUnfolder]: 372/916 cut-off events. [2022-12-12 00:38:37,126 INFO L131 PetriNetUnfolder]: For 208/216 co-relation queries the response was YES. [2022-12-12 00:38:37,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 916 events. 372/916 cut-off events. For 208/216 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4905 event pairs, 201 based on Foata normal form. 3/873 useless extension candidates. Maximal degree in co-relation 1291. Up to 323 conditions per place. [2022-12-12 00:38:37,137 INFO L137 encePairwiseOnDemand]: 97/112 looper letters, 34 selfloop transitions, 7 changer transitions 30/135 dead transitions. [2022-12-12 00:38:37,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 135 transitions, 454 flow [2022-12-12 00:38:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-12 00:38:37,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-12 00:38:37,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 987 transitions. [2022-12-12 00:38:37,155 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.734375 [2022-12-12 00:38:37,158 INFO L295 CegarLoopForPetriNet]: 107 programPoint places, 11 predicate places. [2022-12-12 00:38:37,159 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 135 transitions, 454 flow [2022-12-12 00:38:37,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 105 transitions, 313 flow [2022-12-12 00:38:37,167 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 105 transitions, 313 flow [2022-12-12 00:38:37,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 79.1) internal successors, (791), 10 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:37,168 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:38:37,168 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:38:37,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 00:38:37,169 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)] === [2022-12-12 00:38:37,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:38:37,171 INFO L85 PathProgramCache]: Analyzing trace with hash 712106315, now seen corresponding path program 2 times [2022-12-12 00:38:37,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:38:37,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608857602] [2022-12-12 00:38:37,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:38:37,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:38:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:38:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:38:37,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:38:37,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608857602] [2022-12-12 00:38:37,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608857602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:38:37,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:38:37,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 00:38:37,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844817533] [2022-12-12 00:38:37,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:38:37,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 00:38:37,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:38:37,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 00:38:37,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-12 00:38:37,417 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-12 00:38:37,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 105 transitions, 313 flow. Second operand has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:37,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:38:37,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-12 00:38:37,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:38:37,602 INFO L130 PetriNetUnfolder]: 338/903 cut-off events. [2022-12-12 00:38:37,602 INFO L131 PetriNetUnfolder]: For 459/802 co-relation queries the response was YES. [2022-12-12 00:38:37,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2192 conditions, 903 events. 338/903 cut-off events. For 459/802 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4992 event pairs, 80 based on Foata normal form. 24/906 useless extension candidates. Maximal degree in co-relation 1944. Up to 523 conditions per place. [2022-12-12 00:38:37,609 INFO L137 encePairwiseOnDemand]: 102/112 looper letters, 60 selfloop transitions, 19 changer transitions 0/148 dead transitions. [2022-12-12 00:38:37,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 148 transitions, 673 flow [2022-12-12 00:38:37,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 00:38:37,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 00:38:37,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 613 transitions. [2022-12-12 00:38:37,610 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7818877551020408 [2022-12-12 00:38:37,611 INFO L295 CegarLoopForPetriNet]: 107 programPoint places, 9 predicate places. [2022-12-12 00:38:37,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 148 transitions, 673 flow [2022-12-12 00:38:37,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 148 transitions, 673 flow [2022-12-12 00:38:37,616 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 148 transitions, 673 flow [2022-12-12 00:38:37,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:37,616 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:38:37,617 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:38:37,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 00:38:37,617 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)] === [2022-12-12 00:38:37,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:38:37,618 INFO L85 PathProgramCache]: Analyzing trace with hash 198279259, now seen corresponding path program 3 times [2022-12-12 00:38:37,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:38:37,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220814304] [2022-12-12 00:38:37,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:38:37,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:38:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:38:37,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:38:37,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:38:37,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220814304] [2022-12-12 00:38:37,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220814304] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:38:37,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:38:37,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 00:38:37,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370069878] [2022-12-12 00:38:37,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:38:37,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 00:38:37,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:38:37,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 00:38:37,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-12 00:38:37,900 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-12 00:38:37,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 148 transitions, 673 flow. Second operand has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:37,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:38:37,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-12 00:38:37,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:38:38,052 INFO L130 PetriNetUnfolder]: 272/793 cut-off events. [2022-12-12 00:38:38,052 INFO L131 PetriNetUnfolder]: For 875/1368 co-relation queries the response was YES. [2022-12-12 00:38:38,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2385 conditions, 793 events. 272/793 cut-off events. For 875/1368 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4453 event pairs, 68 based on Foata normal form. 45/813 useless extension candidates. Maximal degree in co-relation 1956. Up to 450 conditions per place. [2022-12-12 00:38:38,057 INFO L137 encePairwiseOnDemand]: 102/112 looper letters, 62 selfloop transitions, 20 changer transitions 6/157 dead transitions. [2022-12-12 00:38:38,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 157 transitions, 903 flow [2022-12-12 00:38:38,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 00:38:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 00:38:38,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 612 transitions. [2022-12-12 00:38:38,059 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7806122448979592 [2022-12-12 00:38:38,060 INFO L295 CegarLoopForPetriNet]: 107 programPoint places, 15 predicate places. [2022-12-12 00:38:38,060 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 157 transitions, 903 flow [2022-12-12 00:38:38,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 151 transitions, 849 flow [2022-12-12 00:38:38,065 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 151 transitions, 849 flow [2022-12-12 00:38:38,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:38,066 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:38:38,066 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:38:38,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 00:38:38,066 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)] === [2022-12-12 00:38:38,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:38:38,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1035264577, now seen corresponding path program 4 times [2022-12-12 00:38:38,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:38:38,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922717847] [2022-12-12 00:38:38,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:38:38,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:38:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:38:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:38:38,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:38:38,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922717847] [2022-12-12 00:38:38,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922717847] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:38:38,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:38:38,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 00:38:38,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143901700] [2022-12-12 00:38:38,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:38:38,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 00:38:38,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:38:38,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 00:38:38,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-12 00:38:38,267 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-12 00:38:38,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 151 transitions, 849 flow. Second operand has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:38,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:38:38,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-12 00:38:38,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:38:38,409 INFO L130 PetriNetUnfolder]: 154/546 cut-off events. [2022-12-12 00:38:38,410 INFO L131 PetriNetUnfolder]: For 1128/1407 co-relation queries the response was YES. [2022-12-12 00:38:38,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1892 conditions, 546 events. 154/546 cut-off events. For 1128/1407 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2777 event pairs, 55 based on Foata normal form. 31/564 useless extension candidates. Maximal degree in co-relation 1585. Up to 340 conditions per place. [2022-12-12 00:38:38,441 INFO L137 encePairwiseOnDemand]: 102/112 looper letters, 67 selfloop transitions, 28 changer transitions 0/163 dead transitions. [2022-12-12 00:38:38,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 163 transitions, 1145 flow [2022-12-12 00:38:38,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 00:38:38,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 00:38:38,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 612 transitions. [2022-12-12 00:38:38,443 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7806122448979592 [2022-12-12 00:38:38,444 INFO L295 CegarLoopForPetriNet]: 107 programPoint places, 21 predicate places. [2022-12-12 00:38:38,444 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 163 transitions, 1145 flow [2022-12-12 00:38:38,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 163 transitions, 1145 flow [2022-12-12 00:38:38,447 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 163 transitions, 1145 flow [2022-12-12 00:38:38,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:38,447 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:38:38,447 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:38:38,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 00:38:38,447 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)] === [2022-12-12 00:38:38,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:38:38,448 INFO L85 PathProgramCache]: Analyzing trace with hash -315508143, now seen corresponding path program 5 times [2022-12-12 00:38:38,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:38:38,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104765492] [2022-12-12 00:38:38,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:38:38,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:38:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:38:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:38:38,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:38:38,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104765492] [2022-12-12 00:38:38,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104765492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:38:38,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:38:38,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:38:38,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303482479] [2022-12-12 00:38:38,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:38:38,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:38:38,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:38:38,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:38:38,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:38:38,927 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 112 [2022-12-12 00:38:38,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 163 transitions, 1145 flow. Second operand has 10 states, 10 states have (on average 79.1) internal successors, (791), 10 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:38,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:38:38,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 112 [2022-12-12 00:38:38,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:38:39,203 INFO L130 PetriNetUnfolder]: 167/634 cut-off events. [2022-12-12 00:38:39,203 INFO L131 PetriNetUnfolder]: For 1686/1957 co-relation queries the response was YES. [2022-12-12 00:38:39,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2560 conditions, 634 events. 167/634 cut-off events. For 1686/1957 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3543 event pairs, 21 based on Foata normal form. 8/635 useless extension candidates. Maximal degree in co-relation 2149. Up to 381 conditions per place. [2022-12-12 00:38:39,207 INFO L137 encePairwiseOnDemand]: 100/112 looper letters, 76 selfloop transitions, 10 changer transitions 62/212 dead transitions. [2022-12-12 00:38:39,207 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 212 transitions, 1928 flow [2022-12-12 00:38:39,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:38:39,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:38:39,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2022-12-12 00:38:39,209 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7392857142857143 [2022-12-12 00:38:39,210 INFO L295 CegarLoopForPetriNet]: 107 programPoint places, 30 predicate places. [2022-12-12 00:38:39,211 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 212 transitions, 1928 flow [2022-12-12 00:38:39,213 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 150 transitions, 1178 flow [2022-12-12 00:38:39,213 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 150 transitions, 1178 flow [2022-12-12 00:38:39,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 79.1) internal successors, (791), 10 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:39,214 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:38:39,214 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:38:39,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 00:38:39,214 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)] === [2022-12-12 00:38:39,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:38:39,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1504422359, now seen corresponding path program 6 times [2022-12-12 00:38:39,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:38:39,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217727418] [2022-12-12 00:38:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:38:39,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:38:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:38:39,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:38:39,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:38:39,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217727418] [2022-12-12 00:38:39,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217727418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:38:39,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:38:39,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 00:38:39,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011238966] [2022-12-12 00:38:39,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:38:39,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 00:38:39,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:38:39,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 00:38:39,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-12 00:38:39,408 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-12 00:38:39,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 150 transitions, 1178 flow. Second operand has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:39,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:38:39,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-12 00:38:39,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:38:39,523 INFO L130 PetriNetUnfolder]: 60/288 cut-off events. [2022-12-12 00:38:39,523 INFO L131 PetriNetUnfolder]: For 939/1173 co-relation queries the response was YES. [2022-12-12 00:38:39,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 288 events. 60/288 cut-off events. For 939/1173 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 914 event pairs, 4 based on Foata normal form. 17/303 useless extension candidates. Maximal degree in co-relation 1021. Up to 136 conditions per place. [2022-12-12 00:38:39,525 INFO L137 encePairwiseOnDemand]: 102/112 looper letters, 54 selfloop transitions, 30 changer transitions 6/158 dead transitions. [2022-12-12 00:38:39,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 158 transitions, 1463 flow [2022-12-12 00:38:39,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 00:38:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 00:38:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 683 transitions. [2022-12-12 00:38:39,527 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7622767857142857 [2022-12-12 00:38:39,530 INFO L295 CegarLoopForPetriNet]: 107 programPoint places, 34 predicate places. [2022-12-12 00:38:39,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 158 transitions, 1463 flow [2022-12-12 00:38:39,532 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 152 transitions, 1373 flow [2022-12-12 00:38:39,533 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 152 transitions, 1373 flow [2022-12-12 00:38:39,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:39,533 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:38:39,533 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:38:39,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 00:38:39,534 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)] === [2022-12-12 00:38:39,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:38:39,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1363545735, now seen corresponding path program 7 times [2022-12-12 00:38:39,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:38:39,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558645282] [2022-12-12 00:38:39,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:38:39,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:38:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:38:39,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:38:39,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:38:39,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558645282] [2022-12-12 00:38:39,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558645282] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:38:39,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:38:39,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 00:38:39,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304976136] [2022-12-12 00:38:39,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:38:39,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 00:38:39,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:38:39,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 00:38:39,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-12 00:38:39,724 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-12 00:38:39,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 152 transitions, 1373 flow. Second operand has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:39,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:38:39,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-12 00:38:39,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:38:39,859 INFO L130 PetriNetUnfolder]: 54/289 cut-off events. [2022-12-12 00:38:39,859 INFO L131 PetriNetUnfolder]: For 1124/1256 co-relation queries the response was YES. [2022-12-12 00:38:39,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 289 events. 54/289 cut-off events. For 1124/1256 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 932 event pairs, 4 based on Foata normal form. 15/302 useless extension candidates. Maximal degree in co-relation 1079. Up to 126 conditions per place. [2022-12-12 00:38:39,861 INFO L137 encePairwiseOnDemand]: 102/112 looper letters, 51 selfloop transitions, 28 changer transitions 8/155 dead transitions. [2022-12-12 00:38:39,861 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 155 transitions, 1589 flow [2022-12-12 00:38:39,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:38:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:38:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 841 transitions. [2022-12-12 00:38:39,863 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7508928571428571 [2022-12-12 00:38:39,863 INFO L295 CegarLoopForPetriNet]: 107 programPoint places, 43 predicate places. [2022-12-12 00:38:39,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 155 transitions, 1589 flow [2022-12-12 00:38:39,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 147 transitions, 1455 flow [2022-12-12 00:38:39,866 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 147 transitions, 1455 flow [2022-12-12 00:38:39,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:39,866 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:38:39,866 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:38:39,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 00:38:39,866 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)] === [2022-12-12 00:38:39,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:38:39,867 INFO L85 PathProgramCache]: Analyzing trace with hash -645086167, now seen corresponding path program 8 times [2022-12-12 00:38:39,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:38:39,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683115930] [2022-12-12 00:38:39,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:38:39,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:38:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:38:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:38:40,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:38:40,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683115930] [2022-12-12 00:38:40,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683115930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:38:40,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:38:40,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 00:38:40,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998431561] [2022-12-12 00:38:40,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:38:40,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 00:38:40,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:38:40,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 00:38:40,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-12 00:38:40,050 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-12 00:38:40,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 147 transitions, 1455 flow. Second operand has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:40,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:38:40,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-12 00:38:40,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:38:40,168 INFO L130 PetriNetUnfolder]: 31/228 cut-off events. [2022-12-12 00:38:40,169 INFO L131 PetriNetUnfolder]: For 1145/1224 co-relation queries the response was YES. [2022-12-12 00:38:40,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 228 events. 31/228 cut-off events. For 1145/1224 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 606 event pairs, 4 based on Foata normal form. 16/243 useless extension candidates. Maximal degree in co-relation 897. Up to 92 conditions per place. [2022-12-12 00:38:40,170 INFO L137 encePairwiseOnDemand]: 102/112 looper letters, 36 selfloop transitions, 16 changer transitions 27/145 dead transitions. [2022-12-12 00:38:40,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 145 transitions, 1586 flow [2022-12-12 00:38:40,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:38:40,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:38:40,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 840 transitions. [2022-12-12 00:38:40,172 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-12-12 00:38:40,173 INFO L295 CegarLoopForPetriNet]: 107 programPoint places, 50 predicate places. [2022-12-12 00:38:40,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 145 transitions, 1586 flow [2022-12-12 00:38:40,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 118 transitions, 1106 flow [2022-12-12 00:38:40,175 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 118 transitions, 1106 flow [2022-12-12 00:38:40,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:40,175 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:38:40,176 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:38:40,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 00:38:40,176 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)] === [2022-12-12 00:38:40,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:38:40,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1610473279, now seen corresponding path program 9 times [2022-12-12 00:38:40,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:38:40,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654421176] [2022-12-12 00:38:40,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:38:40,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:38:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:38:40,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:38:40,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:38:40,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654421176] [2022-12-12 00:38:40,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654421176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:38:40,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:38:40,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 00:38:40,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814040036] [2022-12-12 00:38:40,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:38:40,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 00:38:40,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:38:40,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 00:38:40,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-12 00:38:40,351 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 112 [2022-12-12 00:38:40,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 118 transitions, 1106 flow. Second operand has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:40,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:38:40,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 112 [2022-12-12 00:38:40,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:38:40,412 INFO L130 PetriNetUnfolder]: 6/90 cut-off events. [2022-12-12 00:38:40,412 INFO L131 PetriNetUnfolder]: For 414/414 co-relation queries the response was YES. [2022-12-12 00:38:40,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 90 events. 6/90 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 70 event pairs, 0 based on Foata normal form. 6/96 useless extension candidates. Maximal degree in co-relation 239. Up to 19 conditions per place. [2022-12-12 00:38:40,412 INFO L137 encePairwiseOnDemand]: 104/112 looper letters, 0 selfloop transitions, 0 changer transitions 81/81 dead transitions. [2022-12-12 00:38:40,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 81 transitions, 675 flow [2022-12-12 00:38:40,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:38:40,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:38:40,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 807 transitions. [2022-12-12 00:38:40,414 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7205357142857143 [2022-12-12 00:38:40,414 INFO L295 CegarLoopForPetriNet]: 107 programPoint places, 31 predicate places. [2022-12-12 00:38:40,414 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 81 transitions, 675 flow [2022-12-12 00:38:40,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 00:38:40,415 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 00:38:40,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:38:40,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 00:38:40,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 00:38:40,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 00:38:40,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 00:38:40,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 00:38:40,418 INFO L445 BasicCegarLoop]: Path program histogram: [9] [2022-12-12 00:38:40,420 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 00:38:40,420 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 00:38:40,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:38:40 BasicIcfg [2022-12-12 00:38:40,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 00:38:40,425 INFO L158 Benchmark]: Toolchain (without parser) took 5789.67ms. Allocated memory was 219.2MB in the beginning and 513.8MB in the end (delta: 294.6MB). Free memory was 194.9MB in the beginning and 416.8MB in the end (delta: -222.0MB). Peak memory consumption was 73.6MB. Max. memory is 8.0GB. [2022-12-12 00:38:40,425 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 219.2MB. Free memory is still 195.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 00:38:40,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.42ms. Allocated memory is still 219.2MB. Free memory was 194.7MB in the beginning and 180.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-12 00:38:40,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.02ms. Allocated memory is still 219.2MB. Free memory was 180.5MB in the beginning and 179.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 00:38:40,426 INFO L158 Benchmark]: Boogie Preprocessor took 30.03ms. Allocated memory is still 219.2MB. Free memory was 178.4MB in the beginning and 177.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 00:38:40,426 INFO L158 Benchmark]: RCFGBuilder took 423.01ms. Allocated memory is still 219.2MB. Free memory was 177.4MB in the beginning and 158.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 00:38:40,426 INFO L158 Benchmark]: TraceAbstraction took 5070.98ms. Allocated memory was 219.2MB in the beginning and 513.8MB in the end (delta: 294.6MB). Free memory was 156.4MB in the beginning and 416.8MB in the end (delta: -260.4MB). Peak memory consumption was 34.8MB. Max. memory is 8.0GB. [2022-12-12 00:38:40,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 219.2MB. Free memory is still 195.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 221.42ms. Allocated memory is still 219.2MB. Free memory was 194.7MB in the beginning and 180.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.02ms. Allocated memory is still 219.2MB. Free memory was 180.5MB in the beginning and 179.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.03ms. Allocated memory is still 219.2MB. Free memory was 178.4MB in the beginning and 177.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 423.01ms. Allocated memory is still 219.2MB. Free memory was 177.4MB in the beginning and 158.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 5070.98ms. Allocated memory was 219.2MB in the beginning and 513.8MB in the end (delta: 294.6MB). Free memory was 156.4MB in the beginning and 416.8MB in the end (delta: -260.4MB). Peak memory consumption was 34.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 136 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 397 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 397 mSDsluCounter, 398 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 274 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1412 IncrementalHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 124 mSDtfsCounter, 1412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1455occurred in iteration=7, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 2324 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 855 NumberOfCodeBlocks, 855 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 846 ConstructedInterpolants, 0 QuantifiedInterpolants, 2315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 00:38:40,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...