/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 --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-time-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 22:28:34,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 22:28:34,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 22:28:34,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 22:28:34,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 22:28:34,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 22:28:34,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 22:28:34,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 22:28:34,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 22:28:34,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 22:28:34,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 22:28:34,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 22:28:34,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 22:28:34,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 22:28:34,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 22:28:34,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 22:28:34,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 22:28:34,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 22:28:34,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 22:28:34,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 22:28:34,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 22:28:34,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 22:28:34,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 22:28:34,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 22:28:34,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 22:28:34,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 22:28:34,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 22:28:34,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 22:28:34,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 22:28:34,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 22:28:34,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 22:28:34,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 22:28:34,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 22:28:34,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 22:28:34,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 22:28:34,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 22:28:34,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 22:28:34,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 22:28:34,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 22:28:34,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 22:28:34,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 22:28:34,742 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 22:28:34,774 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 22:28:34,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 22:28:34,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 22:28:34,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 22:28:34,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 22:28:34,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 22:28:34,777 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 22:28:34,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 22:28:34,777 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 22:28:34,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 22:28:34,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 22:28:34,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 22:28:34,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 22:28:34,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 22:28:34,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 22:28:34,779 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 22:28:34,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 22:28:34,779 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 22:28:34,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 22:28:34,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 22:28:34,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 22:28:34,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 22:28:34,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 22:28:34,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 22:28:34,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 22:28:34,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 22:28:34,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 22:28:34,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 22:28:34,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 22:28:34,780 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 22:28:34,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 22:28:35,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 22:28:35,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 22:28:35,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 22:28:35,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 22:28:35,130 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 22:28:35,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-time-symm.wvr.c [2022-12-12 22:28:36,280 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 22:28:36,476 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 22:28:36,476 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-symm.wvr.c [2022-12-12 22:28:36,483 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b7e334c/6e8b49737042412cbee4df3901f981cd/FLAGe88c00905 [2022-12-12 22:28:36,503 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b7e334c/6e8b49737042412cbee4df3901f981cd [2022-12-12 22:28:36,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 22:28:36,507 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 22:28:36,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 22:28:36,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 22:28:36,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 22:28:36,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2eb0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36, skipping insertion in model container [2022-12-12 22:28:36,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 22:28:36,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 22:28:36,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 22:28:36,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 22:28:36,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 22:28:36,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 22:28:36,733 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-symm.wvr.c[2494,2507] [2022-12-12 22:28:36,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 22:28:36,755 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 22:28:36,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 22:28:36,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 22:28:36,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 22:28:36,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 22:28:36,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-symm.wvr.c[2494,2507] [2022-12-12 22:28:36,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 22:28:36,809 INFO L208 MainTranslator]: Completed translation [2022-12-12 22:28:36,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36 WrapperNode [2022-12-12 22:28:36,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 22:28:36,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 22:28:36,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 22:28:36,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 22:28:36,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,860 INFO L138 Inliner]: procedures = 22, calls = 29, calls flagged for inlining = 9, calls inlined = 15, statements flattened = 148 [2022-12-12 22:28:36,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 22:28:36,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 22:28:36,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 22:28:36,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 22:28:36,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,898 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 22:28:36,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 22:28:36,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 22:28:36,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 22:28:36,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (1/1) ... [2022-12-12 22:28:36,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 22:28:36,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 22:28:36,938 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 22:28:36,955 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 22:28:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 22:28:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 22:28:36,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 22:28:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 22:28:36,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 22:28:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 22:28:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 22:28:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 22:28:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 22:28:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 22:28:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 22:28:36,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 22:28:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 22:28:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 22:28:36,983 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 22:28:37,055 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 22:28:37,057 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 22:28:37,365 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 22:28:37,628 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 22:28:37,628 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 22:28:37,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 10:28:37 BoogieIcfgContainer [2022-12-12 22:28:37,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 22:28:37,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 22:28:37,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 22:28:37,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 22:28:37,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 10:28:36" (1/3) ... [2022-12-12 22:28:37,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79810604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 10:28:37, skipping insertion in model container [2022-12-12 22:28:37,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:28:36" (2/3) ... [2022-12-12 22:28:37,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79810604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 10:28:37, skipping insertion in model container [2022-12-12 22:28:37,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 10:28:37" (3/3) ... [2022-12-12 22:28:37,640 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-symm.wvr.c [2022-12-12 22:28:37,658 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 22:28:37,658 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 22:28:37,658 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 22:28:37,732 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 22:28:37,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 77 transitions, 170 flow [2022-12-12 22:28:37,837 INFO L130 PetriNetUnfolder]: 1/75 cut-off events. [2022-12-12 22:28:37,837 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 22:28:37,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 75 events. 1/75 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-12-12 22:28:37,840 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 77 transitions, 170 flow [2022-12-12 22:28:37,844 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 67 transitions, 146 flow [2022-12-12 22:28:37,845 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 22:28:37,874 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 67 transitions, 146 flow [2022-12-12 22:28:37,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 67 transitions, 146 flow [2022-12-12 22:28:37,908 INFO L130 PetriNetUnfolder]: 1/67 cut-off events. [2022-12-12 22:28:37,908 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 22:28:37,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 67 events. 1/67 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 16. Up to 2 conditions per place. [2022-12-12 22:28:37,910 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 67 transitions, 146 flow [2022-12-12 22:28:37,910 INFO L226 LiptonReduction]: Number of co-enabled transitions 108 [2022-12-12 22:28:41,499 INFO L241 LiptonReduction]: Total number of compositions: 56 [2022-12-12 22:28:41,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 22:28:41,518 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;@7fda317b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 22:28:41,519 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-12 22:28:41,523 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-12 22:28:41,523 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 22:28:41,523 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:28:41,524 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:28:41,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 22:28:41,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:28:41,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1504684485, now seen corresponding path program 1 times [2022-12-12 22:28:41,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:28:41,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484744502] [2022-12-12 22:28:41,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:28:41,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:28:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:28:42,675 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 22:28:42,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:28:42,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484744502] [2022-12-12 22:28:42,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484744502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:28:42,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:28:42,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 22:28:42,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352657294] [2022-12-12 22:28:42,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:28:42,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 22:28:42,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:28:42,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 22:28:42,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 22:28:42,705 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 11 [2022-12-12 22:28:42,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 22:28:42,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:28:42,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 11 [2022-12-12 22:28:42,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:28:42,808 INFO L130 PetriNetUnfolder]: 8/32 cut-off events. [2022-12-12 22:28:42,808 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-12 22:28:42,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 32 events. 8/32 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 45. Up to 16 conditions per place. [2022-12-12 22:28:42,810 INFO L137 encePairwiseOnDemand]: 8/11 looper letters, 11 selfloop transitions, 1 changer transitions 7/19 dead transitions. [2022-12-12 22:28:42,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 19 transitions, 97 flow [2022-12-12 22:28:42,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 22:28:42,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 22:28:42,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2022-12-12 22:28:42,820 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2022-12-12 22:28:42,826 INFO L295 CegarLoopForPetriNet]: 18 programPoint places, 3 predicate places. [2022-12-12 22:28:42,826 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 19 transitions, 97 flow [2022-12-12 22:28:42,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 12 transitions, 60 flow [2022-12-12 22:28:42,829 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 60 flow [2022-12-12 22:28:42,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 22:28:42,830 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:28:42,830 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:28:42,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 22:28:42,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 22:28:42,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:28:42,839 INFO L85 PathProgramCache]: Analyzing trace with hash -967381895, now seen corresponding path program 2 times [2022-12-12 22:28:42,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:28:42,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482383051] [2022-12-12 22:28:42,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:28:42,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:28:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:28:43,419 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 22:28:43,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:28:43,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482383051] [2022-12-12 22:28:43,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482383051] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:28:43,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:28:43,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 22:28:43,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488517060] [2022-12-12 22:28:43,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:28:43,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 22:28:43,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:28:43,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 22:28:43,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 22:28:43,426 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 11 [2022-12-12 22:28:43,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 60 flow. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 22:28:43,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:28:43,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 11 [2022-12-12 22:28:43,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:28:43,489 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2022-12-12 22:28:43,489 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 22:28:43,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 21 events. 3/21 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 44. Up to 13 conditions per place. [2022-12-12 22:28:43,490 INFO L137 encePairwiseOnDemand]: 8/11 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2022-12-12 22:28:43,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 16 transitions, 111 flow [2022-12-12 22:28:43,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 22:28:43,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 22:28:43,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-12-12 22:28:43,492 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36363636363636365 [2022-12-12 22:28:43,493 INFO L295 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2022-12-12 22:28:43,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 22 places, 16 transitions, 111 flow [2022-12-12 22:28:43,493 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 22:28:43,493 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 22:28:43,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 22:28:43,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-12 22:28:43,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-12 22:28:43,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-12 22:28:43,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 22:28:43,497 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2022-12-12 22:28:43,502 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 22:28:43,502 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 22:28:43,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 10:28:43 BasicIcfg [2022-12-12 22:28:43,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 22:28:43,509 INFO L158 Benchmark]: Toolchain (without parser) took 7001.80ms. Allocated memory was 198.2MB in the beginning and 278.9MB in the end (delta: 80.7MB). Free memory was 152.9MB in the beginning and 146.2MB in the end (delta: 6.7MB). Peak memory consumption was 88.6MB. Max. memory is 8.0GB. [2022-12-12 22:28:43,511 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 198.2MB. Free memory was 175.4MB in the beginning and 175.2MB in the end (delta: 169.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 22:28:43,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.00ms. Allocated memory is still 198.2MB. Free memory was 152.6MB in the beginning and 173.7MB in the end (delta: -21.2MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-12-12 22:28:43,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.78ms. Allocated memory is still 198.2MB. Free memory was 173.7MB in the beginning and 171.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 22:28:43,514 INFO L158 Benchmark]: Boogie Preprocessor took 39.60ms. Allocated memory is still 198.2MB. Free memory was 171.6MB in the beginning and 170.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 22:28:43,514 INFO L158 Benchmark]: RCFGBuilder took 730.24ms. Allocated memory is still 198.2MB. Free memory was 170.1MB in the beginning and 171.3MB in the end (delta: -1.2MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2022-12-12 22:28:43,514 INFO L158 Benchmark]: TraceAbstraction took 5873.61ms. Allocated memory was 198.2MB in the beginning and 278.9MB in the end (delta: 80.7MB). Free memory was 170.3MB in the beginning and 146.2MB in the end (delta: 24.0MB). Peak memory consumption was 104.8MB. Max. memory is 8.0GB. [2022-12-12 22:28:43,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 198.2MB. Free memory was 175.4MB in the beginning and 175.2MB in the end (delta: 169.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 299.00ms. Allocated memory is still 198.2MB. Free memory was 152.6MB in the beginning and 173.7MB in the end (delta: -21.2MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.78ms. Allocated memory is still 198.2MB. Free memory was 173.7MB in the beginning and 171.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.60ms. Allocated memory is still 198.2MB. Free memory was 171.6MB in the beginning and 170.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 730.24ms. Allocated memory is still 198.2MB. Free memory was 170.1MB in the beginning and 171.3MB in the end (delta: -1.2MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * TraceAbstraction took 5873.61ms. Allocated memory was 198.2MB in the beginning and 278.9MB in the end (delta: 80.7MB). Free memory was 170.3MB in the beginning and 146.2MB in the end (delta: 24.0MB). Peak memory consumption was 104.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 73 PlacesBefore, 18 PlacesAfterwards, 67 TransitionsBefore, 11 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 44 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 47, independent: 47, independent conditional: 47, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 47, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 47, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 47, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 47, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 47, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 47, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 47, unknown conditional: 0, unknown unconditional: 47] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 80]: 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 5 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=1, InterpolantAutomatonStates: 8, 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, 148 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 530 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 22:28:43,538 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...