/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:59:00,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:59:00,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:59:00,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:59:00,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:59:00,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:59:00,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:59:00,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:59:00,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:59:00,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:59:00,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:59:00,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:59:00,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:59:00,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:59:00,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:59:00,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:59:00,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:59:00,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:59:00,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:59:00,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:59:00,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:59:00,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:59:00,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:59:00,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:59:00,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:59:00,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:59:00,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:59:00,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:59:00,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:59:00,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:59:00,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:59:00,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:59:00,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:59:00,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:59:00,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:59:00,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:59:00,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:59:00,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:59:00,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:59:00,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:59:00,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:59:00,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:59:00,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:59:00,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:59:00,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:59:00,226 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:59:00,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:59:00,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:59:00,227 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:59:00,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:59:00,228 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:59:00,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:59:00,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:59:00,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:59:00,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:59:00,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:59:00,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:59:00,229 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:59:00,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:59:00,229 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:59:00,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:59:00,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:59:00,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:59:00,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:59:00,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:59:00,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:59:00,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:59:00,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:59:00,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:59:00,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:59:00,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:59:00,230 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:59:00,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:59:00,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:59:00,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:59:00,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:59:00,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:59:00,525 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:59:00,526 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:59:00,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-06 16:59:01,557 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:59:01,754 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:59:01,754 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-06 16:59:01,761 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ea641a4/b39d1da375a14e8f90d1e78e7a314184/FLAG1dee0cc81 [2022-12-06 16:59:01,773 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ea641a4/b39d1da375a14e8f90d1e78e7a314184 [2022-12-06 16:59:01,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:59:01,775 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:59:01,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:59:01,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:59:01,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:59:01,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:01" (1/1) ... [2022-12-06 16:59:01,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1e36a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:01, skipping insertion in model container [2022-12-06 16:59:01,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:01" (1/1) ... [2022-12-06 16:59:01,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:59:01,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:59:01,893 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-12-06 16:59:01,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:59:01,984 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:59:01,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-12-06 16:59:02,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:59:02,058 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:59:02,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02 WrapperNode [2022-12-06 16:59:02,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:59:02,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:59:02,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:59:02,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:59:02,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,101 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 139 [2022-12-06 16:59:02,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:59:02,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:59:02,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:59:02,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:59:02,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,130 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:59:02,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:59:02,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:59:02,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:59:02,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:59:02,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:59:02,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 16:59:02,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 16:59:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:59:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 16:59:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:59:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:59:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 16:59:02,216 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 16:59:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:59:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:59:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:59:02,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:59:02,219 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:59:02,316 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:59:02,317 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:59:02,544 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:59:02,550 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:59:02,551 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:59:02,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:02 BoogieIcfgContainer [2022-12-06 16:59:02,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:59:02,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:59:02,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:59:02,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:59:02,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:59:01" (1/3) ... [2022-12-06 16:59:02,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238f6c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:02, skipping insertion in model container [2022-12-06 16:59:02,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (2/3) ... [2022-12-06 16:59:02,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238f6c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:02, skipping insertion in model container [2022-12-06 16:59:02,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:02" (3/3) ... [2022-12-06 16:59:02,566 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-06 16:59:02,579 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:59:02,579 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-06 16:59:02,579 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:59:02,665 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:59:02,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 162 transitions, 329 flow [2022-12-06 16:59:02,766 INFO L130 PetriNetUnfolder]: 8/164 cut-off events. [2022-12-06 16:59:02,766 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:59:02,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 164 events. 8/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 149 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 118. Up to 2 conditions per place. [2022-12-06 16:59:02,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 162 transitions, 329 flow [2022-12-06 16:59:02,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 160 transitions, 323 flow [2022-12-06 16:59:02,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:59:02,800 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;@3d9bc451, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:59:02,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-06 16:59:02,819 INFO L130 PetriNetUnfolder]: 2/93 cut-off events. [2022-12-06 16:59:02,819 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:59:02,819 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:02,820 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:02,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:59:02,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:02,824 INFO L85 PathProgramCache]: Analyzing trace with hash 404338569, now seen corresponding path program 1 times [2022-12-06 16:59:02,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:02,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718199046] [2022-12-06 16:59:02,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:03,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:03,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718199046] [2022-12-06 16:59:03,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718199046] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:03,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:03,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:59:03,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410758617] [2022-12-06 16:59:03,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:03,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:59:03,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:03,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:59:03,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:59:03,420 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 162 [2022-12-06 16:59:03,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 160 transitions, 323 flow. Second operand has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:03,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:03,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 162 [2022-12-06 16:59:03,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:03,694 INFO L130 PetriNetUnfolder]: 95/830 cut-off events. [2022-12-06 16:59:03,694 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:59:03,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 830 events. 95/830 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5291 event pairs, 27 based on Foata normal form. 93/863 useless extension candidates. Maximal degree in co-relation 1022. Up to 89 conditions per place. [2022-12-06 16:59:03,704 INFO L137 encePairwiseOnDemand]: 140/162 looper letters, 52 selfloop transitions, 38 changer transitions 10/218 dead transitions. [2022-12-06 16:59:03,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 218 transitions, 631 flow [2022-12-06 16:59:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 16:59:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 16:59:03,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2486 transitions. [2022-12-06 16:59:03,720 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8076673164392463 [2022-12-06 16:59:03,724 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 15 predicate places. [2022-12-06 16:59:03,724 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 218 transitions, 631 flow [2022-12-06 16:59:03,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:03,725 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:03,725 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:03,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:59:03,726 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:59:03,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:03,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1598717764, now seen corresponding path program 1 times [2022-12-06 16:59:03,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:03,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11641569] [2022-12-06 16:59:03,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:03,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:04,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:04,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11641569] [2022-12-06 16:59:04,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11641569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:04,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:04,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:59:04,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622255256] [2022-12-06 16:59:04,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:04,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:59:04,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:04,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:59:04,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:59:04,022 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 162 [2022-12-06 16:59:04,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 218 transitions, 631 flow. Second operand has 8 states, 8 states have (on average 126.0) internal successors, (1008), 8 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:04,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:04,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 162 [2022-12-06 16:59:04,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:04,299 INFO L130 PetriNetUnfolder]: 92/827 cut-off events. [2022-12-06 16:59:04,299 INFO L131 PetriNetUnfolder]: For 71/281 co-relation queries the response was YES. [2022-12-06 16:59:04,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 827 events. 92/827 cut-off events. For 71/281 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5117 event pairs, 24 based on Foata normal form. 19/793 useless extension candidates. Maximal degree in co-relation 1239. Up to 89 conditions per place. [2022-12-06 16:59:04,303 INFO L137 encePairwiseOnDemand]: 146/162 looper letters, 52 selfloop transitions, 44 changer transitions 10/224 dead transitions. [2022-12-06 16:59:04,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 224 transitions, 859 flow [2022-12-06 16:59:04,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 16:59:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 16:59:04,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2452 transitions. [2022-12-06 16:59:04,308 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7966211825860948 [2022-12-06 16:59:04,308 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 33 predicate places. [2022-12-06 16:59:04,309 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 224 transitions, 859 flow [2022-12-06 16:59:04,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 126.0) internal successors, (1008), 8 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:04,310 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:04,310 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:04,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:59:04,311 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:59:04,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:04,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1409961072, now seen corresponding path program 1 times [2022-12-06 16:59:04,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:04,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529007731] [2022-12-06 16:59:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:04,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:04,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:04,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529007731] [2022-12-06 16:59:04,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529007731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:04,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:04,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:59:04,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803777317] [2022-12-06 16:59:04,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:04,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:59:04,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:04,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:59:04,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:59:04,517 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 162 [2022-12-06 16:59:04,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 224 transitions, 859 flow. Second operand has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:04,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:04,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 162 [2022-12-06 16:59:04,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:04,660 INFO L130 PetriNetUnfolder]: 91/913 cut-off events. [2022-12-06 16:59:04,661 INFO L131 PetriNetUnfolder]: For 69/85 co-relation queries the response was YES. [2022-12-06 16:59:04,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 913 events. 91/913 cut-off events. For 69/85 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5129 event pairs, 31 based on Foata normal form. 6/856 useless extension candidates. Maximal degree in co-relation 1441. Up to 154 conditions per place. [2022-12-06 16:59:04,663 INFO L137 encePairwiseOnDemand]: 152/162 looper letters, 23 selfloop transitions, 9 changer transitions 14/203 dead transitions. [2022-12-06 16:59:04,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 203 transitions, 765 flow [2022-12-06 16:59:04,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 16:59:04,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 16:59:04,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 666 transitions. [2022-12-06 16:59:04,665 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2022-12-06 16:59:04,668 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 29 predicate places. [2022-12-06 16:59:04,668 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 203 transitions, 765 flow [2022-12-06 16:59:04,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:04,668 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:04,669 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:04,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:59:04,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:59:04,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:04,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1282239338, now seen corresponding path program 1 times [2022-12-06 16:59:04,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:04,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335054188] [2022-12-06 16:59:04,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:04,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:04,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:04,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:04,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335054188] [2022-12-06 16:59:04,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335054188] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:04,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:04,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-06 16:59:04,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821298469] [2022-12-06 16:59:04,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:04,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 16:59:04,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:04,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 16:59:04,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-12-06 16:59:04,893 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 162 [2022-12-06 16:59:04,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 203 transitions, 765 flow. Second operand has 13 states, 13 states have (on average 111.15384615384616) internal successors, (1445), 13 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:04,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:04,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 162 [2022-12-06 16:59:04,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:05,563 INFO L130 PetriNetUnfolder]: 205/1187 cut-off events. [2022-12-06 16:59:05,563 INFO L131 PetriNetUnfolder]: For 437/472 co-relation queries the response was YES. [2022-12-06 16:59:05,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2515 conditions, 1187 events. 205/1187 cut-off events. For 437/472 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7309 event pairs, 30 based on Foata normal form. 7/1096 useless extension candidates. Maximal degree in co-relation 2440. Up to 207 conditions per place. [2022-12-06 16:59:05,568 INFO L137 encePairwiseOnDemand]: 142/162 looper letters, 115 selfloop transitions, 52 changer transitions 32/308 dead transitions. [2022-12-06 16:59:05,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 308 transitions, 1729 flow [2022-12-06 16:59:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-06 16:59:05,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-06 16:59:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3006 transitions. [2022-12-06 16:59:05,573 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7136752136752137 [2022-12-06 16:59:05,573 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 54 predicate places. [2022-12-06 16:59:05,573 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 308 transitions, 1729 flow [2022-12-06 16:59:05,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 111.15384615384616) internal successors, (1445), 13 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:05,574 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:05,574 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:05,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:59:05,575 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:59:05,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:05,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1563897700, now seen corresponding path program 1 times [2022-12-06 16:59:05,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:05,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790520878] [2022-12-06 16:59:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:05,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:05,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:05,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:05,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790520878] [2022-12-06 16:59:05,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790520878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:05,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:05,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:59:05,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075696865] [2022-12-06 16:59:05,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:05,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:59:05,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:05,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:59:05,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:59:05,692 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 162 [2022-12-06 16:59:05,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 308 transitions, 1729 flow. Second operand has 8 states, 8 states have (on average 121.375) internal successors, (971), 8 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:05,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:05,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 162 [2022-12-06 16:59:05,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:05,974 INFO L130 PetriNetUnfolder]: 205/1179 cut-off events. [2022-12-06 16:59:05,974 INFO L131 PetriNetUnfolder]: For 870/926 co-relation queries the response was YES. [2022-12-06 16:59:05,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2810 conditions, 1179 events. 205/1179 cut-off events. For 870/926 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7225 event pairs, 28 based on Foata normal form. 9/1094 useless extension candidates. Maximal degree in co-relation 2728. Up to 207 conditions per place. [2022-12-06 16:59:05,978 INFO L137 encePairwiseOnDemand]: 149/162 looper letters, 113 selfloop transitions, 36 changer transitions 33/310 dead transitions. [2022-12-06 16:59:05,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 310 transitions, 2095 flow [2022-12-06 16:59:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:59:05,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:59:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1511 transitions. [2022-12-06 16:59:05,981 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7772633744855967 [2022-12-06 16:59:05,983 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 63 predicate places. [2022-12-06 16:59:05,983 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 310 transitions, 2095 flow [2022-12-06 16:59:05,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.375) internal successors, (971), 8 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:05,984 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:05,984 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:05,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:59:05,985 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:59:05,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:05,985 INFO L85 PathProgramCache]: Analyzing trace with hash -992884684, now seen corresponding path program 1 times [2022-12-06 16:59:05,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:05,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183265986] [2022-12-06 16:59:05,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:05,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:06,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:06,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:06,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183265986] [2022-12-06 16:59:06,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183265986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:06,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:06,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-06 16:59:06,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363174732] [2022-12-06 16:59:06,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:06,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 16:59:06,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:06,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 16:59:06,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-12-06 16:59:06,219 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 162 [2022-12-06 16:59:06,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 310 transitions, 2095 flow. Second operand has 13 states, 13 states have (on average 115.46153846153847) internal successors, (1501), 13 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:06,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:06,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 162 [2022-12-06 16:59:06,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:06,914 INFO L130 PetriNetUnfolder]: 473/2420 cut-off events. [2022-12-06 16:59:06,914 INFO L131 PetriNetUnfolder]: For 2934/2998 co-relation queries the response was YES. [2022-12-06 16:59:06,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6184 conditions, 2420 events. 473/2420 cut-off events. For 2934/2998 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 18798 event pairs, 84 based on Foata normal form. 37/2304 useless extension candidates. Maximal degree in co-relation 6098. Up to 402 conditions per place. [2022-12-06 16:59:06,924 INFO L137 encePairwiseOnDemand]: 141/162 looper letters, 121 selfloop transitions, 63 changer transitions 134/461 dead transitions. [2022-12-06 16:59:06,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 461 transitions, 3777 flow [2022-12-06 16:59:06,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-06 16:59:06,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-06 16:59:06,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 4108 transitions. [2022-12-06 16:59:06,932 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7245149911816579 [2022-12-06 16:59:06,933 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 97 predicate places. [2022-12-06 16:59:06,934 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 461 transitions, 3777 flow [2022-12-06 16:59:06,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.46153846153847) internal successors, (1501), 13 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:06,935 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:06,935 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:06,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:59:06,935 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:59:06,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:06,935 INFO L85 PathProgramCache]: Analyzing trace with hash 201140895, now seen corresponding path program 1 times [2022-12-06 16:59:06,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:06,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783943110] [2022-12-06 16:59:06,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:06,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:07,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:07,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:07,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783943110] [2022-12-06 16:59:07,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783943110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:07,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:07,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:59:07,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865591583] [2022-12-06 16:59:07,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:07,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:59:07,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:07,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:59:07,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:59:07,222 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 162 [2022-12-06 16:59:07,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 461 transitions, 3777 flow. Second operand has 8 states, 8 states have (on average 122.125) internal successors, (977), 8 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:07,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:07,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 162 [2022-12-06 16:59:07,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:07,463 INFO L130 PetriNetUnfolder]: 431/2237 cut-off events. [2022-12-06 16:59:07,463 INFO L131 PetriNetUnfolder]: For 2938/3003 co-relation queries the response was YES. [2022-12-06 16:59:07,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6213 conditions, 2237 events. 431/2237 cut-off events. For 2938/3003 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 16632 event pairs, 44 based on Foata normal form. 15/2119 useless extension candidates. Maximal degree in co-relation 6107. Up to 353 conditions per place. [2022-12-06 16:59:07,473 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 33 selfloop transitions, 10 changer transitions 141/450 dead transitions. [2022-12-06 16:59:07,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 450 transitions, 3689 flow [2022-12-06 16:59:07,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 16:59:07,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 16:59:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 755 transitions. [2022-12-06 16:59:07,474 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7767489711934157 [2022-12-06 16:59:07,475 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 99 predicate places. [2022-12-06 16:59:07,475 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 450 transitions, 3689 flow [2022-12-06 16:59:07,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 122.125) internal successors, (977), 8 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:07,475 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:07,476 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:07,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:59:07,476 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:59:07,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:07,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1539798342, now seen corresponding path program 1 times [2022-12-06 16:59:07,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:07,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018459604] [2022-12-06 16:59:07,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:07,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:07,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:07,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:07,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018459604] [2022-12-06 16:59:07,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018459604] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:07,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:07,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:59:07,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033602905] [2022-12-06 16:59:07,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:07,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:59:07,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:07,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:59:07,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:59:07,616 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 162 [2022-12-06 16:59:07,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 450 transitions, 3689 flow. Second operand has 6 states, 6 states have (on average 128.16666666666666) internal successors, (769), 6 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:07,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:07,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 162 [2022-12-06 16:59:07,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:07,746 INFO L130 PetriNetUnfolder]: 139/908 cut-off events. [2022-12-06 16:59:07,747 INFO L131 PetriNetUnfolder]: For 1042/1110 co-relation queries the response was YES. [2022-12-06 16:59:07,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2692 conditions, 908 events. 139/908 cut-off events. For 1042/1110 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4638 event pairs, 30 based on Foata normal form. 7/853 useless extension candidates. Maximal degree in co-relation 2572. Up to 151 conditions per place. [2022-12-06 16:59:07,751 INFO L137 encePairwiseOnDemand]: 152/162 looper letters, 31 selfloop transitions, 12 changer transitions 71/261 dead transitions. [2022-12-06 16:59:07,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 261 transitions, 1813 flow [2022-12-06 16:59:07,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 16:59:07,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 16:59:07,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 664 transitions. [2022-12-06 16:59:07,752 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8197530864197531 [2022-12-06 16:59:07,752 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 80 predicate places. [2022-12-06 16:59:07,752 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 261 transitions, 1813 flow [2022-12-06 16:59:07,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.16666666666666) internal successors, (769), 6 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:07,753 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:07,753 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:07,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:59:07,753 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:59:07,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:07,754 INFO L85 PathProgramCache]: Analyzing trace with hash -369034627, now seen corresponding path program 1 times [2022-12-06 16:59:07,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:07,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183433149] [2022-12-06 16:59:07,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:07,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:07,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:07,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:07,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183433149] [2022-12-06 16:59:07,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183433149] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:07,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:07,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:59:07,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441202741] [2022-12-06 16:59:07,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:07,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:59:07,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:07,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:59:07,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:59:07,880 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 162 [2022-12-06 16:59:07,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 261 transitions, 1813 flow. Second operand has 8 states, 8 states have (on average 121.875) internal successors, (975), 8 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:07,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:07,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 162 [2022-12-06 16:59:07,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:08,090 INFO L130 PetriNetUnfolder]: 136/867 cut-off events. [2022-12-06 16:59:08,090 INFO L131 PetriNetUnfolder]: For 1443/1514 co-relation queries the response was YES. [2022-12-06 16:59:08,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2807 conditions, 867 events. 136/867 cut-off events. For 1443/1514 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4300 event pairs, 27 based on Foata normal form. 7/820 useless extension candidates. Maximal degree in co-relation 2680. Up to 140 conditions per place. [2022-12-06 16:59:08,094 INFO L137 encePairwiseOnDemand]: 148/162 looper letters, 45 selfloop transitions, 11 changer transitions 71/259 dead transitions. [2022-12-06 16:59:08,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 259 transitions, 1981 flow [2022-12-06 16:59:08,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:59:08,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:59:08,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1492 transitions. [2022-12-06 16:59:08,096 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7674897119341564 [2022-12-06 16:59:08,096 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 89 predicate places. [2022-12-06 16:59:08,096 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 259 transitions, 1981 flow [2022-12-06 16:59:08,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.875) internal successors, (975), 8 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:08,097 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:08,097 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:08,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:59:08,097 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:59:08,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:08,097 INFO L85 PathProgramCache]: Analyzing trace with hash -747542151, now seen corresponding path program 1 times [2022-12-06 16:59:08,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:08,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817255340] [2022-12-06 16:59:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:08,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:08,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:08,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:08,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817255340] [2022-12-06 16:59:08,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817255340] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:08,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:08,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 16:59:08,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835355914] [2022-12-06 16:59:08,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:08,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 16:59:08,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:08,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 16:59:08,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-06 16:59:08,245 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 162 [2022-12-06 16:59:08,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 259 transitions, 1981 flow. Second operand has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:08,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:08,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 162 [2022-12-06 16:59:08,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:08,530 INFO L130 PetriNetUnfolder]: 136/938 cut-off events. [2022-12-06 16:59:08,531 INFO L131 PetriNetUnfolder]: For 1886/1966 co-relation queries the response was YES. [2022-12-06 16:59:08,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3247 conditions, 938 events. 136/938 cut-off events. For 1886/1966 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4856 event pairs, 26 based on Foata normal form. 2/888 useless extension candidates. Maximal degree in co-relation 3117. Up to 141 conditions per place. [2022-12-06 16:59:08,535 INFO L137 encePairwiseOnDemand]: 144/162 looper letters, 43 selfloop transitions, 18 changer transitions 92/280 dead transitions. [2022-12-06 16:59:08,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 280 transitions, 2381 flow [2022-12-06 16:59:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 16:59:08,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 16:59:08,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2015 transitions. [2022-12-06 16:59:08,537 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7316630355846042 [2022-12-06 16:59:08,538 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 105 predicate places. [2022-12-06 16:59:08,539 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 280 transitions, 2381 flow [2022-12-06 16:59:08,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:08,540 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:08,540 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:08,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:59:08,540 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:59:08,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:08,541 INFO L85 PathProgramCache]: Analyzing trace with hash -683610107, now seen corresponding path program 1 times [2022-12-06 16:59:08,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:08,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627295916] [2022-12-06 16:59:08,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:08,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:08,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:08,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:08,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627295916] [2022-12-06 16:59:08,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627295916] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:08,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:08,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:59:08,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094931351] [2022-12-06 16:59:08,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:08,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:59:08,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:08,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:59:08,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:59:08,763 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 162 [2022-12-06 16:59:08,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 280 transitions, 2381 flow. Second operand has 7 states, 7 states have (on average 123.28571428571429) internal successors, (863), 7 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:08,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:08,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 162 [2022-12-06 16:59:08,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:08,900 INFO L130 PetriNetUnfolder]: 80/645 cut-off events. [2022-12-06 16:59:08,900 INFO L131 PetriNetUnfolder]: For 1643/1701 co-relation queries the response was YES. [2022-12-06 16:59:08,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 645 events. 80/645 cut-off events. For 1643/1701 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2712 event pairs, 4 based on Foata normal form. 14/619 useless extension candidates. Maximal degree in co-relation 2243. Up to 108 conditions per place. [2022-12-06 16:59:08,902 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 0 selfloop transitions, 0 changer transitions 250/250 dead transitions. [2022-12-06 16:59:08,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 250 transitions, 2205 flow [2022-12-06 16:59:08,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 16:59:08,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 16:59:08,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 755 transitions. [2022-12-06 16:59:08,903 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7767489711934157 [2022-12-06 16:59:08,904 INFO L294 CegarLoopForPetriNet]: 156 programPoint places, 105 predicate places. [2022-12-06 16:59:08,904 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 250 transitions, 2205 flow [2022-12-06 16:59:08,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 123.28571428571429) internal successors, (863), 7 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:08,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-12-06 16:59:08,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-06 16:59:08,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-12-06 16:59:08,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-12-06 16:59:08,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-12-06 16:59:08,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-06 16:59:08,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-06 16:59:08,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 16:59:08,908 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:08,914 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:59:08,914 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:59:08,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:59:08 BasicIcfg [2022-12-06 16:59:08,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:59:08,918 INFO L158 Benchmark]: Toolchain (without parser) took 7143.15ms. Allocated memory was 199.2MB in the beginning and 443.5MB in the end (delta: 244.3MB). Free memory was 174.1MB in the beginning and 377.3MB in the end (delta: -203.2MB). Peak memory consumption was 221.5MB. Max. memory is 8.0GB. [2022-12-06 16:59:08,919 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory is still 176.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:59:08,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.21ms. Allocated memory is still 199.2MB. Free memory was 173.6MB in the beginning and 153.7MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-06 16:59:08,919 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.63ms. Allocated memory is still 199.2MB. Free memory was 153.7MB in the beginning and 151.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:59:08,919 INFO L158 Benchmark]: Boogie Preprocessor took 30.35ms. Allocated memory is still 199.2MB. Free memory was 151.1MB in the beginning and 149.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:59:08,920 INFO L158 Benchmark]: RCFGBuilder took 419.48ms. Allocated memory is still 199.2MB. Free memory was 149.5MB in the beginning and 131.6MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-06 16:59:08,920 INFO L158 Benchmark]: TraceAbstraction took 6364.39ms. Allocated memory was 199.2MB in the beginning and 443.5MB in the end (delta: 244.3MB). Free memory was 131.2MB in the beginning and 377.3MB in the end (delta: -246.2MB). Peak memory consumption was 179.6MB. Max. memory is 8.0GB. [2022-12-06 16:59:08,922 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 199.2MB. Free memory is still 176.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 283.21ms. Allocated memory is still 199.2MB. Free memory was 173.6MB in the beginning and 153.7MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.63ms. Allocated memory is still 199.2MB. Free memory was 153.7MB in the beginning and 151.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.35ms. Allocated memory is still 199.2MB. Free memory was 151.1MB in the beginning and 149.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 419.48ms. Allocated memory is still 199.2MB. Free memory was 149.5MB in the beginning and 131.6MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 6364.39ms. Allocated memory was 199.2MB in the beginning and 443.5MB in the end (delta: 244.3MB). Free memory was 131.2MB in the beginning and 377.3MB in the end (delta: -246.2MB). Peak memory consumption was 179.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 223 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1500 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1500 mSDsluCounter, 2050 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1673 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1441 IncrementalHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 377 mSDtfsCounter, 1441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3777occurred in iteration=6, InterpolantAutomatonStates: 162, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1048 NumberOfCodeBlocks, 1048 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1037 ConstructedInterpolants, 0 QuantifiedInterpolants, 4582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:59:08,949 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...