/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:27:22,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:27:22,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:27:22,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:27:22,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:27:22,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:27:22,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:27:22,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:27:22,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:27:22,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:27:22,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:27:22,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:27:22,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:27:22,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:27:22,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:27:22,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:27:22,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:27:22,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:27:22,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:27:22,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:27:22,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:27:22,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:27:22,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:27:22,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:27:22,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:27:22,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:27:22,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:27:22,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:27:22,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:27:22,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:27:22,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:27:22,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:27:22,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:27:22,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:27:22,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:27:22,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:27:22,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:27:22,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:27:22,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:27:22,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:27:22,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:27:22,688 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:27:22,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:27:22,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:27:22,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:27:22,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:27:22,723 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:27:22,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:27:22,724 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:27:22,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:27:22,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:27:22,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:27:22,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:27:22,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:27:22,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:27:22,726 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:27:22,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:27:22,726 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:27:22,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:27:22,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:27:22,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:27:22,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:27:22,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:27:22,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:27:22,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:27:22,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:27:22,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:27:22,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:27:22,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:27:22,728 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:27:22,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:27:23,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:27:23,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:27:23,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:27:23,062 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:27:23,063 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:27:23,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.i [2022-12-06 04:27:24,161 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:27:24,502 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:27:24,504 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i [2022-12-06 04:27:24,521 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/531ad9e76/8b7f377f5ac64870b2810401c4595565/FLAG9890d442b [2022-12-06 04:27:24,537 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/531ad9e76/8b7f377f5ac64870b2810401c4595565 [2022-12-06 04:27:24,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:27:24,541 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:27:24,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:27:24,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:27:24,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:27:24,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:27:24" (1/1) ... [2022-12-06 04:27:24,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3284b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:24, skipping insertion in model container [2022-12-06 04:27:24,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:27:24" (1/1) ... [2022-12-06 04:27:24,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:27:24,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:27:24,761 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i[945,958] [2022-12-06 04:27:24,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:27:24,924 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:27:24,936 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i[945,958] [2022-12-06 04:27:24,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:27:24,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:27:24,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:27:25,018 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:27:25,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25 WrapperNode [2022-12-06 04:27:25,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:27:25,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:27:25,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:27:25,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:27:25,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (1/1) ... [2022-12-06 04:27:25,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (1/1) ... [2022-12-06 04:27:25,069 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-12-06 04:27:25,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:27:25,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:27:25,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:27:25,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:27:25,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (1/1) ... [2022-12-06 04:27:25,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (1/1) ... [2022-12-06 04:27:25,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (1/1) ... [2022-12-06 04:27:25,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (1/1) ... [2022-12-06 04:27:25,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (1/1) ... [2022-12-06 04:27:25,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (1/1) ... [2022-12-06 04:27:25,101 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (1/1) ... [2022-12-06 04:27:25,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (1/1) ... [2022-12-06 04:27:25,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:27:25,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:27:25,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:27:25,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:27:25,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (1/1) ... [2022-12-06 04:27:25,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:27:25,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:27:25,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 04:27:25,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 04:27:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:27:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 04:27:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:27:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:27:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:27:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 04:27:25,195 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 04:27:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 04:27:25,196 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 04:27:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:27:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 04:27:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:27:25,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:27:25,198 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 04:27:25,354 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:27:25,356 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:27:25,526 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:27:25,532 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:27:25,532 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:27:25,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:27:25 BoogieIcfgContainer [2022-12-06 04:27:25,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:27:25,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:27:25,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:27:25,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:27:25,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:27:24" (1/3) ... [2022-12-06 04:27:25,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7386e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:27:25, skipping insertion in model container [2022-12-06 04:27:25,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:27:25" (2/3) ... [2022-12-06 04:27:25,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7386e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:27:25, skipping insertion in model container [2022-12-06 04:27:25,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:27:25" (3/3) ... [2022-12-06 04:27:25,545 INFO L112 eAbstractionObserver]: Analyzing ICFG safe010_tso.i [2022-12-06 04:27:25,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:27:25,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:27:25,564 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:27:25,630 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 04:27:25,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 67 transitions, 144 flow [2022-12-06 04:27:25,725 INFO L130 PetriNetUnfolder]: 2/65 cut-off events. [2022-12-06 04:27:25,725 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:27:25,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-06 04:27:25,731 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 67 transitions, 144 flow [2022-12-06 04:27:25,736 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 55 transitions, 116 flow [2022-12-06 04:27:25,737 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:27:25,757 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 55 transitions, 116 flow [2022-12-06 04:27:25,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 55 transitions, 116 flow [2022-12-06 04:27:25,785 INFO L130 PetriNetUnfolder]: 1/55 cut-off events. [2022-12-06 04:27:25,785 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:27:25,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-06 04:27:25,788 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 55 transitions, 116 flow [2022-12-06 04:27:25,788 INFO L188 LiptonReduction]: Number of co-enabled transitions 540 [2022-12-06 04:27:28,273 INFO L203 LiptonReduction]: Total number of compositions: 43 [2022-12-06 04:27:28,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:27:28,293 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=REPEATED_LIPTON_PN, 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;@2939a018, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:27:28,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 04:27:28,298 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-06 04:27:28,298 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:27:28,298 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:27:28,298 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-06 04:27:28,299 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:27:28,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:27:28,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1798561320, now seen corresponding path program 1 times [2022-12-06 04:27:28,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:27:28,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854923389] [2022-12-06 04:27:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:27:28,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:27:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:27:28,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:27:28,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:27:28,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854923389] [2022-12-06 04:27:28,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854923389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:27:28,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:27:28,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 04:27:28,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165040872] [2022-12-06 04:27:28,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:27:28,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:27:28,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:27:28,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:27:28,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:27:28,734 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 13 [2022-12-06 04:27:28,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-12-06 04:27:28,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:27:28,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 13 [2022-12-06 04:27:28,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:27:28,779 INFO L130 PetriNetUnfolder]: 44/106 cut-off events. [2022-12-06 04:27:28,779 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:27:28,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 106 events. 44/106 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 410 event pairs, 16 based on Foata normal form. 7/113 useless extension candidates. Maximal degree in co-relation 206. Up to 64 conditions per place. [2022-12-06 04:27:28,781 INFO L137 encePairwiseOnDemand]: 7/13 looper letters, 14 selfloop transitions, 4 changer transitions 0/19 dead transitions. [2022-12-06 04:27:28,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 19 transitions, 83 flow [2022-12-06 04:27:28,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:27:28,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:27:28,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2022-12-06 04:27:28,791 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2022-12-06 04:27:28,793 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 32 flow. Second operand 3 states and 24 transitions. [2022-12-06 04:27:28,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 19 transitions, 83 flow [2022-12-06 04:27:28,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 19 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:27:28,796 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 50 flow [2022-12-06 04:27:28,798 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2022-12-06 04:27:28,801 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 1 predicate places. [2022-12-06 04:27:28,801 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:27:28,801 INFO L89 Accepts]: Start accepts. Operand has 20 places, 14 transitions, 50 flow [2022-12-06 04:27:28,803 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:27:28,804 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:27:28,804 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 14 transitions, 50 flow [2022-12-06 04:27:28,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 20 places, 14 transitions, 50 flow [2022-12-06 04:27:28,811 INFO L130 PetriNetUnfolder]: 4/29 cut-off events. [2022-12-06 04:27:28,811 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:27:28,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 29 events. 4/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 73 event pairs, 2 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 49. Up to 13 conditions per place. [2022-12-06 04:27:28,812 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 14 transitions, 50 flow [2022-12-06 04:27:28,812 INFO L188 LiptonReduction]: Number of co-enabled transitions 48 [2022-12-06 04:27:28,822 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:27:28,824 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 23 [2022-12-06 04:27:28,824 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 50 flow [2022-12-06 04:27:28,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-12-06 04:27:28,824 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:27:28,825 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:27:28,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:27:28,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:27:28,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:27:28,826 INFO L85 PathProgramCache]: Analyzing trace with hash 79174367, now seen corresponding path program 1 times [2022-12-06 04:27:28,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:27:28,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157414612] [2022-12-06 04:27:28,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:27:28,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:27:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:27:28,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:27:28,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:27:28,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157414612] [2022-12-06 04:27:28,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157414612] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:27:28,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:27:28,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:27:28,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028324715] [2022-12-06 04:27:28,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:27:28,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:27:28,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:27:28,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:27:28,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:27:28,943 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 12 [2022-12-06 04:27:28,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 2.75) 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) [2022-12-06 04:27:28,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:27:28,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 12 [2022-12-06 04:27:28,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:27:28,988 INFO L130 PetriNetUnfolder]: 41/99 cut-off events. [2022-12-06 04:27:28,988 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-06 04:27:28,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 99 events. 41/99 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 360 event pairs, 10 based on Foata normal form. 2/100 useless extension candidates. Maximal degree in co-relation 241. Up to 45 conditions per place. [2022-12-06 04:27:28,989 INFO L137 encePairwiseOnDemand]: 7/12 looper letters, 14 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2022-12-06 04:27:28,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 103 flow [2022-12-06 04:27:28,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:27:28,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:27:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2022-12-06 04:27:28,991 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2022-12-06 04:27:28,991 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 50 flow. Second operand 4 states and 23 transitions. [2022-12-06 04:27:28,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 103 flow [2022-12-06 04:27:28,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 04:27:28,992 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 69 flow [2022-12-06 04:27:28,992 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=12, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=69, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2022-12-06 04:27:28,993 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2022-12-06 04:27:28,993 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:27:28,993 INFO L89 Accepts]: Start accepts. Operand has 24 places, 15 transitions, 69 flow [2022-12-06 04:27:28,994 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:27:28,994 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:27:28,994 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 15 transitions, 69 flow [2022-12-06 04:27:28,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 15 transitions, 69 flow [2022-12-06 04:27:28,999 INFO L130 PetriNetUnfolder]: 3/27 cut-off events. [2022-12-06 04:27:28,999 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-06 04:27:29,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 27 events. 3/27 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 64 event pairs, 1 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 57. Up to 11 conditions per place. [2022-12-06 04:27:29,000 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 15 transitions, 69 flow [2022-12-06 04:27:29,000 INFO L188 LiptonReduction]: Number of co-enabled transitions 50 [2022-12-06 04:27:29,001 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:27:29,003 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-06 04:27:29,003 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 69 flow [2022-12-06 04:27:29,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) 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) [2022-12-06 04:27:29,003 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:27:29,003 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:27:29,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:27:29,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:27:29,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:27:29,004 INFO L85 PathProgramCache]: Analyzing trace with hash 79173158, now seen corresponding path program 1 times [2022-12-06 04:27:29,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:27:29,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474728620] [2022-12-06 04:27:29,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:27:29,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:27:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:27:29,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:27:29,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:27:29,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474728620] [2022-12-06 04:27:29,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474728620] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:27:29,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:27:29,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:27:29,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240947641] [2022-12-06 04:27:29,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:27:29,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:27:29,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:27:29,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:27:29,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:27:29,110 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 12 [2022-12-06 04:27:29,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 2.75) 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) [2022-12-06 04:27:29,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:27:29,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 12 [2022-12-06 04:27:29,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:27:29,185 INFO L130 PetriNetUnfolder]: 45/112 cut-off events. [2022-12-06 04:27:29,186 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2022-12-06 04:27:29,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 112 events. 45/112 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 417 event pairs, 11 based on Foata normal form. 10/122 useless extension candidates. Maximal degree in co-relation 288. Up to 46 conditions per place. [2022-12-06 04:27:29,190 INFO L137 encePairwiseOnDemand]: 8/12 looper letters, 13 selfloop transitions, 3 changer transitions 6/23 dead transitions. [2022-12-06 04:27:29,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 23 transitions, 136 flow [2022-12-06 04:27:29,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:27:29,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:27:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-12-06 04:27:29,193 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2022-12-06 04:27:29,193 INFO L175 Difference]: Start difference. First operand has 24 places, 15 transitions, 69 flow. Second operand 4 states and 25 transitions. [2022-12-06 04:27:29,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 23 transitions, 136 flow [2022-12-06 04:27:29,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:27:29,196 INFO L231 Difference]: Finished difference. Result has 27 places, 12 transitions, 60 flow [2022-12-06 04:27:29,196 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=12, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=27, PETRI_TRANSITIONS=12} [2022-12-06 04:27:29,198 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 8 predicate places. [2022-12-06 04:27:29,198 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:27:29,200 INFO L89 Accepts]: Start accepts. Operand has 27 places, 12 transitions, 60 flow [2022-12-06 04:27:29,206 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:27:29,206 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:27:29,207 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 12 transitions, 60 flow [2022-12-06 04:27:29,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 12 transitions, 60 flow [2022-12-06 04:27:29,214 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-12-06 04:27:29,215 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-06 04:27:29,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 14 events. 0/14 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-06 04:27:29,215 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 12 transitions, 60 flow [2022-12-06 04:27:29,215 INFO L188 LiptonReduction]: Number of co-enabled transitions 32 [2022-12-06 04:27:29,269 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 04:27:29,271 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 73 [2022-12-06 04:27:29,271 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 10 transitions, 56 flow [2022-12-06 04:27:29,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) 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) [2022-12-06 04:27:29,271 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:27:29,271 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:27:29,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:27:29,272 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:27:29,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:27:29,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1840555962, now seen corresponding path program 1 times [2022-12-06 04:27:29,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:27:29,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716712056] [2022-12-06 04:27:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:27:29,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:27:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:27:29,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:27:29,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:27:29,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716712056] [2022-12-06 04:27:29,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716712056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:27:29,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:27:29,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:27:29,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3020092] [2022-12-06 04:27:29,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:27:29,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:27:29,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:27:29,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:27:29,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:27:29,428 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 10 [2022-12-06 04:27:29,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 10 transitions, 56 flow. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:27:29,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:27:29,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 10 [2022-12-06 04:27:29,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:27:29,471 INFO L130 PetriNetUnfolder]: 13/40 cut-off events. [2022-12-06 04:27:29,471 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-12-06 04:27:29,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 40 events. 13/40 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 88 event pairs, 3 based on Foata normal form. 2/42 useless extension candidates. Maximal degree in co-relation 134. Up to 20 conditions per place. [2022-12-06 04:27:29,472 INFO L137 encePairwiseOnDemand]: 5/10 looper letters, 11 selfloop transitions, 2 changer transitions 10/23 dead transitions. [2022-12-06 04:27:29,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 168 flow [2022-12-06 04:27:29,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:27:29,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:27:29,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2022-12-06 04:27:29,473 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-06 04:27:29,473 INFO L175 Difference]: Start difference. First operand has 25 places, 10 transitions, 56 flow. Second operand 5 states and 25 transitions. [2022-12-06 04:27:29,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 168 flow [2022-12-06 04:27:29,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 23 transitions, 124 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-12-06 04:27:29,476 INFO L231 Difference]: Finished difference. Result has 26 places, 10 transitions, 52 flow [2022-12-06 04:27:29,476 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=10, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=52, PETRI_PLACES=26, PETRI_TRANSITIONS=10} [2022-12-06 04:27:29,477 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 7 predicate places. [2022-12-06 04:27:29,478 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:27:29,478 INFO L89 Accepts]: Start accepts. Operand has 26 places, 10 transitions, 52 flow [2022-12-06 04:27:29,478 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:27:29,479 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:27:29,479 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 10 transitions, 52 flow [2022-12-06 04:27:29,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 10 transitions, 52 flow [2022-12-06 04:27:29,481 INFO L130 PetriNetUnfolder]: 1/13 cut-off events. [2022-12-06 04:27:29,482 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-06 04:27:29,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 13 events. 1/13 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 1 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 33. Up to 7 conditions per place. [2022-12-06 04:27:29,483 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 10 transitions, 52 flow [2022-12-06 04:27:29,483 INFO L188 LiptonReduction]: Number of co-enabled transitions 12 [2022-12-06 04:27:29,600 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [209] $Ultimate##0-->P0EXIT: Formula: (and (= |v_P0Thread1of1ForFork0_#res.base_21| 0) (= 0 |v_P0Thread1of1ForFork0_#res.offset_21|) (= v_~x~0_38 1) (= v_~__unbuffered_cnt~0_107 (+ v_~__unbuffered_cnt~0_108 1)) (= v_P0Thread1of1ForFork0_~arg.offset_15 |v_P0Thread1of1ForFork0_#in~arg.offset_15|) (= v_P0Thread1of1ForFork0_~arg.base_15 |v_P0Thread1of1ForFork0_#in~arg.base_15|) (= v_~y~0_63 2)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_15|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_108} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_15|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_21|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_15|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_63, ~x~0=v_~x~0_38, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_15, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_15} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0, ~y~0, ~x~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] and [160] $Ultimate##0-->L736: Formula: (and (= |v_P1Thread1of1ForFork1_#in~arg.offset_5| v_P1Thread1of1ForFork1_~arg.offset_5) (= v_P1Thread1of1ForFork1_~arg.base_5 |v_P1Thread1of1ForFork1_#in~arg.base_5|) (= v_~__unbuffered_p1_EAX~0_4 v_~x~0_4)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_5|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_5|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_5, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_5, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_5|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_5|, ~x~0=v_~x~0_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] [2022-12-06 04:27:29,657 INFO L203 LiptonReduction]: Total number of compositions: 3 [2022-12-06 04:27:29,659 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 181 [2022-12-06 04:27:29,659 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 7 transitions, 46 flow [2022-12-06 04:27:29,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:27:29,659 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:27:29,659 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-06 04:27:29,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 04:27:29,660 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:27:29,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:27:29,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1798561055, now seen corresponding path program 1 times [2022-12-06 04:27:29,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:27:29,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101497571] [2022-12-06 04:27:29,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:27:29,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:27:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:27:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:27:29,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:27:29,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101497571] [2022-12-06 04:27:29,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101497571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:27:29,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:27:29,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:27:29,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980671111] [2022-12-06 04:27:29,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:27:29,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:27:29,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:27:29,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:27:29,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:27:29,732 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 7 [2022-12-06 04:27:29,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 7 transitions, 46 flow. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:27:29,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:27:29,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 7 [2022-12-06 04:27:29,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:27:29,746 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-06 04:27:29,746 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 04:27:29,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 6 events. 0/6 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/7 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-06 04:27:29,746 INFO L137 encePairwiseOnDemand]: 3/7 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2022-12-06 04:27:29,747 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 6 transitions, 46 flow [2022-12-06 04:27:29,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:27:29,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:27:29,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-12-06 04:27:29,748 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.25 [2022-12-06 04:27:29,748 INFO L175 Difference]: Start difference. First operand has 21 places, 7 transitions, 46 flow. Second operand 4 states and 7 transitions. [2022-12-06 04:27:29,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 6 transitions, 46 flow [2022-12-06 04:27:29,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 6 transitions, 29 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-12-06 04:27:29,749 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2022-12-06 04:27:29,749 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=7, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2022-12-06 04:27:29,750 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, -3 predicate places. [2022-12-06 04:27:29,750 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:27:29,750 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 16 places, 0 transitions, 0 flow [2022-12-06 04:27:29,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 04:27:29,751 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 04:27:29,751 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:27:29,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 04:27:29,751 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 04:27:29,751 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 04:27:29,751 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:27:29,752 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 04:27:29,752 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 04:27:29,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:27:29,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 04:27:29,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 04:27:29,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 04:27:29,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 04:27:29,756 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-06 04:27:29,762 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:27:29,762 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:27:29,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:27:29 BasicIcfg [2022-12-06 04:27:29,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:27:29,769 INFO L158 Benchmark]: Toolchain (without parser) took 5224.02ms. Allocated memory was 255.9MB in the beginning and 345.0MB in the end (delta: 89.1MB). Free memory was 229.9MB in the beginning and 242.9MB in the end (delta: -13.0MB). Peak memory consumption was 76.7MB. Max. memory is 8.0GB. [2022-12-06 04:27:29,770 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory was 232.8MB in the beginning and 232.7MB in the end (delta: 109.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:27:29,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.90ms. Allocated memory is still 255.9MB. Free memory was 229.9MB in the beginning and 207.9MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-06 04:27:29,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.89ms. Allocated memory is still 255.9MB. Free memory was 207.9MB in the beginning and 205.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:27:29,770 INFO L158 Benchmark]: Boogie Preprocessor took 31.85ms. Allocated memory is still 255.9MB. Free memory was 205.8MB in the beginning and 204.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 04:27:29,770 INFO L158 Benchmark]: RCFGBuilder took 429.09ms. Allocated memory is still 255.9MB. Free memory was 204.7MB in the beginning and 191.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 04:27:29,771 INFO L158 Benchmark]: TraceAbstraction took 4224.29ms. Allocated memory was 255.9MB in the beginning and 345.0MB in the end (delta: 89.1MB). Free memory was 190.6MB in the beginning and 242.9MB in the end (delta: -52.3MB). Peak memory consumption was 37.9MB. Max. memory is 8.0GB. [2022-12-06 04:27:29,772 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 255.9MB. Free memory was 232.8MB in the beginning and 232.7MB in the end (delta: 109.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 477.90ms. Allocated memory is still 255.9MB. Free memory was 229.9MB in the beginning and 207.9MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.89ms. Allocated memory is still 255.9MB. Free memory was 207.9MB in the beginning and 205.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.85ms. Allocated memory is still 255.9MB. Free memory was 205.8MB in the beginning and 204.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 429.09ms. Allocated memory is still 255.9MB. Free memory was 204.7MB in the beginning and 191.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4224.29ms. Allocated memory was 255.9MB in the beginning and 345.0MB in the end (delta: 89.1MB). Free memory was 190.6MB in the beginning and 242.9MB in the end (delta: -52.3MB). Peak memory consumption was 37.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 61 PlacesBefore, 19 PlacesAfterwards, 55 TransitionsBefore, 13 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 24 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 401, independent: 374, independent conditional: 374, independent unconditional: 0, dependent: 27, dependent conditional: 27, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 401, independent: 374, independent conditional: 0, independent unconditional: 374, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 401, independent: 374, independent conditional: 0, independent unconditional: 374, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 401, independent: 374, independent conditional: 0, independent unconditional: 374, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 336, independent: 316, independent conditional: 0, independent unconditional: 316, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 336, independent: 314, independent conditional: 0, independent unconditional: 314, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 401, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 336, unknown conditional: 0, unknown unconditional: 336] , Statistics on independence cache: Total cache size (in pairs): 507, Positive cache size: 487, Positive conditional cache size: 0, Positive unconditional cache size: 487, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 20 PlacesBefore, 20 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, independent: 16, independent conditional: 16, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 22, independent: 16, independent conditional: 3, independent unconditional: 13, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 22, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 24 PlacesBefore, 24 PlacesAfterwards, 15 TransitionsBefore, 15 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27, independent: 20, independent conditional: 20, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27, independent: 20, independent conditional: 4, independent unconditional: 16, dependent: 7, dependent conditional: 4, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 27, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, 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: 1, independent: 1, independent conditional: 0, independent unconditional: 1, 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: 27, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 27 PlacesBefore, 25 PlacesAfterwards, 12 TransitionsBefore, 10 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 13, independent: 9, independent conditional: 3, independent unconditional: 6, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, 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: 5, independent: 5, independent conditional: 0, independent unconditional: 5, 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: 13, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 24 PlacesBefore, 21 PlacesAfterwards, 10 TransitionsBefore, 7 TransitionsAfterwards, 12 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, independent: 6, independent conditional: 6, 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: 6, independent: 6, independent conditional: 6, independent unconditional: 0, 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: 6, independent: 6, independent conditional: 4, independent unconditional: 2, 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: 6, independent: 6, independent conditional: 4, independent unconditional: 2, 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: 2, independent: 2, independent conditional: 2, independent unconditional: 0, 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: 2, independent: 2, independent conditional: 0, independent unconditional: 2, 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: 6, independent: 4, independent conditional: 2, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 25, Positive conditional cache size: 2, Positive unconditional cache size: 23, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.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] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 25, Positive conditional cache size: 2, Positive unconditional cache size: 23, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: 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, 82 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: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 3 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-12-06 04:27:29,799 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...