/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 19:02:00,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 19:02:00,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 19:02:00,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 19:02:00,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 19:02:00,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 19:02:00,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 19:02:00,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 19:02:00,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 19:02:00,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 19:02:00,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 19:02:00,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 19:02:00,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 19:02:00,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 19:02:00,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 19:02:00,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 19:02:00,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 19:02:00,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 19:02:00,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 19:02:00,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 19:02:00,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 19:02:00,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 19:02:00,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 19:02:00,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 19:02:00,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 19:02:00,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 19:02:00,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 19:02:00,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 19:02:00,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 19:02:00,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 19:02:00,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 19:02:00,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 19:02:00,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 19:02:00,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 19:02:00,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 19:02:00,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 19:02:00,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 19:02:00,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 19:02:00,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 19:02:00,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 19:02:00,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 19:02:00,539 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-SemanticLbe.epf [2022-12-12 19:02:00,564 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 19:02:00,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 19:02:00,565 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 19:02:00,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 19:02:00,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 19:02:00,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 19:02:00,567 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 19:02:00,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 19:02:00,567 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 19:02:00,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 19:02:00,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 19:02:00,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 19:02:00,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 19:02:00,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 19:02:00,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 19:02:00,568 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 19:02:00,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 19:02:00,568 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 19:02:00,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 19:02:00,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 19:02:00,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 19:02:00,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 19:02:00,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 19:02:00,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:02:00,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 19:02:00,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 19:02:00,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 19:02:00,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 19:02:00,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 19:02:00,570 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 19:02:00,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 19:02:00,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 19:02:00,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 19:02:00,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 19:02:00,862 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 19:02:00,862 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 19:02:00,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-12 19:02:01,917 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 19:02:02,108 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 19:02:02,108 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-12 19:02:02,116 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d99ccff7/1ae783358e574b91822c3fd59886eb70/FLAGb4474c91f [2022-12-12 19:02:02,130 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d99ccff7/1ae783358e574b91822c3fd59886eb70 [2022-12-12 19:02:02,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 19:02:02,132 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 19:02:02,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 19:02:02,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 19:02:02,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 19:02:02,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6244655c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02, skipping insertion in model container [2022-12-12 19:02:02,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 19:02:02,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 19:02:02,281 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/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-12-12 19:02:02,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:02:02,374 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 19:02:02,385 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/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-12-12 19:02:02,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:02:02,466 INFO L208 MainTranslator]: Completed translation [2022-12-12 19:02:02,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02 WrapperNode [2022-12-12 19:02:02,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 19:02:02,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 19:02:02,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 19:02:02,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 19:02:02,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,510 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-12 19:02:02,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 19:02:02,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 19:02:02,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 19:02:02,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 19:02:02,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,535 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 19:02:02,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 19:02:02,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 19:02:02,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 19:02:02,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (1/1) ... [2022-12-12 19:02:02,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:02:02,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 19:02:02,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 19:02:02,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 19:02:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 19:02:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 19:02:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 19:02:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 19:02:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 19:02:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 19:02:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 19:02:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 19:02:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 19:02:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 19:02:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 19:02:02,638 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 19:02:02,713 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 19:02:02,715 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 19:02:02,811 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 19:02:02,816 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 19:02:02,816 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 19:02:02,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:02:02 BoogieIcfgContainer [2022-12-12 19:02:02,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 19:02:02,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 19:02:02,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 19:02:02,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 19:02:02,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 07:02:02" (1/3) ... [2022-12-12 19:02:02,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c176536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:02:02, skipping insertion in model container [2022-12-12 19:02:02,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:02:02" (2/3) ... [2022-12-12 19:02:02,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c176536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:02:02, skipping insertion in model container [2022-12-12 19:02:02,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:02:02" (3/3) ... [2022-12-12 19:02:02,830 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2022-12-12 19:02:02,842 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 19:02:02,842 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 19:02:02,842 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 19:02:02,875 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-12 19:02:02,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2022-12-12 19:02:02,928 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2022-12-12 19:02:02,928 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 19:02:02,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 1/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-12 19:02:02,931 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2022-12-12 19:02:02,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-12 19:02:02,935 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 19:02:02,947 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-12 19:02:02,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2022-12-12 19:02:02,984 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-12-12 19:02:02,984 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:02:02,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-12 19:02:02,986 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-12 19:02:02,986 INFO L226 LiptonReduction]: Number of co-enabled transitions 252 [2022-12-12 19:02:05,189 INFO L241 LiptonReduction]: Total number of compositions: 45 [2022-12-12 19:02:05,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 19:02:05,204 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;@75be48a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 19:02:05,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-12 19:02:05,206 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-12 19:02:05,206 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:02:05,207 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:02:05,207 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-12 19:02:05,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 19:02:05,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:02:05,210 INFO L85 PathProgramCache]: Analyzing trace with hash 6971877, now seen corresponding path program 1 times [2022-12-12 19:02:05,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:02:05,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083352179] [2022-12-12 19:02:05,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:02:05,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:02:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:02:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:02:05,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:02:05,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083352179] [2022-12-12 19:02:05,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083352179] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:02:05,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:02:05,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 19:02:05,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610322410] [2022-12-12 19:02:05,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:02:05,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 19:02:05,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:02:05,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 19:02:05,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 19:02:05,420 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-12 19:02:05,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:02:05,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:02:05,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-12 19:02:05,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:02:05,447 INFO L130 PetriNetUnfolder]: 13/51 cut-off events. [2022-12-12 19:02:05,447 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:02:05,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 51 events. 13/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 184 event pairs, 10 based on Foata normal form. 9/40 useless extension candidates. Maximal degree in co-relation 92. Up to 31 conditions per place. [2022-12-12 19:02:05,448 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 8 selfloop transitions, 4 changer transitions 5/19 dead transitions. [2022-12-12 19:02:05,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 73 flow [2022-12-12 19:02:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 19:02:05,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 19:02:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2022-12-12 19:02:05,456 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2022-12-12 19:02:05,458 INFO L295 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2022-12-12 19:02:05,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 19 transitions, 73 flow [2022-12-12 19:02:05,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 14 transitions, 55 flow [2022-12-12 19:02:05,460 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 14 transitions, 55 flow [2022-12-12 19:02:05,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:02:05,460 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:02:05,460 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-12 19:02:05,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 19:02:05,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 19:02:05,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:02:05,461 INFO L85 PathProgramCache]: Analyzing trace with hash 216127854, now seen corresponding path program 1 times [2022-12-12 19:02:05,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:02:05,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740138074] [2022-12-12 19:02:05,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:02:05,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:02:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:02:05,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:02:05,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:02:05,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740138074] [2022-12-12 19:02:05,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740138074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:02:05,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:02:05,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 19:02:05,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564762922] [2022-12-12 19:02:05,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:02:05,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 19:02:05,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:02:05,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 19:02:05,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 19:02:05,648 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 18 [2022-12-12 19:02:05,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 14 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:02:05,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:02:05,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 18 [2022-12-12 19:02:05,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:02:05,672 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2022-12-12 19:02:05,672 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 19:02:05,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 21 events. 3/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 63 event pairs, 0 based on Foata normal form. 5/21 useless extension candidates. Maximal degree in co-relation 54. Up to 14 conditions per place. [2022-12-12 19:02:05,673 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 2 selfloop transitions, 4 changer transitions 11/17 dead transitions. [2022-12-12 19:02:05,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 17 transitions, 99 flow [2022-12-12 19:02:05,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 19:02:05,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 19:02:05,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-12-12 19:02:05,674 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3055555555555556 [2022-12-12 19:02:05,674 INFO L295 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2022-12-12 19:02:05,674 INFO L82 GeneralOperation]: Start removeDead. Operand has 22 places, 17 transitions, 99 flow [2022-12-12 19:02:05,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 15 places, 6 transitions, 37 flow [2022-12-12 19:02:05,675 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 6 transitions, 37 flow [2022-12-12 19:02:05,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:02:05,675 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:02:05,675 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 19:02:05,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 19:02:05,675 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 19:02:05,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:02:05,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1889916767, now seen corresponding path program 1 times [2022-12-12 19:02:05,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:02:05,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400567823] [2022-12-12 19:02:05,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:02:05,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:02:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 19:02:05,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 19:02:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 19:02:05,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 19:02:05,705 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 19:02:05,706 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-12 19:02:05,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-12 19:02:05,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 19:02:05,707 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-12 19:02:05,711 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 19:02:05,711 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 19:02:05,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 07:02:05 BasicIcfg [2022-12-12 19:02:05,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 19:02:05,724 INFO L158 Benchmark]: Toolchain (without parser) took 3591.96ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 147.1MB in the beginning and 163.6MB in the end (delta: -16.6MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. [2022-12-12 19:02:05,725 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 172.0MB. Free memory was 148.2MB in the beginning and 148.1MB in the end (delta: 87.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 19:02:05,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.53ms. Allocated memory is still 172.0MB. Free memory was 147.1MB in the beginning and 128.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 19:02:05,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.00ms. Allocated memory is still 172.0MB. Free memory was 128.2MB in the beginning and 126.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 19:02:05,726 INFO L158 Benchmark]: Boogie Preprocessor took 26.38ms. Allocated memory is still 172.0MB. Free memory was 126.1MB in the beginning and 124.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 19:02:05,726 INFO L158 Benchmark]: RCFGBuilder took 279.71ms. Allocated memory is still 172.0MB. Free memory was 124.5MB in the beginning and 111.4MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 19:02:05,726 INFO L158 Benchmark]: TraceAbstraction took 2905.00ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 110.4MB in the beginning and 163.6MB in the end (delta: -53.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 19:02:05,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 172.0MB. Free memory was 148.2MB in the beginning and 148.1MB in the end (delta: 87.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 326.53ms. Allocated memory is still 172.0MB. Free memory was 147.1MB in the beginning and 128.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.00ms. Allocated memory is still 172.0MB. Free memory was 128.2MB in the beginning and 126.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.38ms. Allocated memory is still 172.0MB. Free memory was 126.1MB in the beginning and 124.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 279.71ms. Allocated memory is still 172.0MB. Free memory was 124.5MB in the beginning and 111.4MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2905.00ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 110.4MB in the beginning and 163.6MB in the end (delta: -53.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 56 PlacesBefore, 22 PlacesAfterwards, 52 TransitionsBefore, 18 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 18 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 292, independent: 242, independent conditional: 242, independent unconditional: 0, dependent: 50, dependent conditional: 50, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 292, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 292, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 292, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 189, independent: 164, independent conditional: 0, independent unconditional: 164, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 189, independent: 154, independent conditional: 0, independent unconditional: 154, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 292, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 189, unknown conditional: 0, unknown unconditional: 189] , Statistics on independence cache: Total cache size (in pairs): 321, Positive cache size: 296, Positive conditional cache size: 0, Positive unconditional cache size: 296, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 81 locations, 2 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: 2.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 0 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 80 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 44 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2022-12-12 19:02:05,748 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...