/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:22:12,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:22:12,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:22:12,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:22:12,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:22:12,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:22:12,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:22:12,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:22:12,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:22:12,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:22:12,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:22:12,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2023-01-27 18:22:12,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:22:12,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:22:12,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:22:12,838 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-VariableLbe.epf [2023-01-27 18:22:12,859 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:22:12,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:22:12,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:22:12,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:22:12,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:22:12,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:22:12,861 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:22:12,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:22:12,861 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:22:12,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:22:12,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:22:12,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:22:12,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:22:12,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:22:12,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:22:12,862 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:22:12,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:22:12,862 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:22:12,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:22:12,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:22:12,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:22:12,862 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:22:12,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:22:12,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:22:12,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:22:12,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:22:12,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:22:12,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:22:12,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:22:12,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:22:12,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:22:12,864 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:22:13,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:22:13,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:22:13,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:22:13,059 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:22:13,059 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:22:13,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-01-27 18:22:14,065 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:22:14,289 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:22:14,289 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-01-27 18:22:14,300 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6397eea3/25216689178f423a83aee20107200bee/FLAGc875c1447 [2023-01-27 18:22:14,323 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6397eea3/25216689178f423a83aee20107200bee [2023-01-27 18:22:14,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:22:14,325 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:22:14,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:22:14,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:22:14,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:22:14,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d2d5208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14, skipping insertion in model container [2023-01-27 18:22:14,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:22:14,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:22:14,462 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-27 18:22:14,732 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-01-27 18:22:14,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:22:14,771 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:22:14,778 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-27 18:22:14,807 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-01-27 18:22:14,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:22:14,892 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:22:14,892 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:22:14,892 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:22:14,897 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:22:14,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14 WrapperNode [2023-01-27 18:22:14,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:22:14,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:22:14,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:22:14,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:22:14,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,962 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-01-27 18:22:14,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:22:14,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:22:14,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:22:14,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:22:14,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,985 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:22:14,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:22:14,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:22:14,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:22:14,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (1/1) ... [2023-01-27 18:22:14,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:22:15,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:22:15,016 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) [2023-01-27 18:22:15,022 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 [2023-01-27 18:22:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 18:22:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:22:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 18:22:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:22:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 18:22:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:22:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:22:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:22:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:22:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-01-27 18:22:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-01-27 18:22:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:22:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:22:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:22:15,065 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 18:22:15,392 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:22:15,393 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:22:15,605 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:22:15,635 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:22:15,636 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 18:22:15,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:22:15 BoogieIcfgContainer [2023-01-27 18:22:15,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:22:15,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:22:15,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:22:15,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:22:15,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:22:14" (1/3) ... [2023-01-27 18:22:15,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3191ed6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:22:15, skipping insertion in model container [2023-01-27 18:22:15,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:14" (2/3) ... [2023-01-27 18:22:15,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3191ed6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:22:15, skipping insertion in model container [2023-01-27 18:22:15,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:22:15" (3/3) ... [2023-01-27 18:22:15,645 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-01-27 18:22:15,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:22:15,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-01-27 18:22:15,656 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:22:15,720 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:22:15,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 159 transitions, 334 flow [2023-01-27 18:22:15,792 INFO L130 PetriNetUnfolder]: 8/197 cut-off events. [2023-01-27 18:22:15,792 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:22:15,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 197 events. 8/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 338 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 104. Up to 4 conditions per place. [2023-01-27 18:22:15,800 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 159 transitions, 334 flow [2023-01-27 18:22:15,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 147 transitions, 306 flow [2023-01-27 18:22:15,806 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:22:15,811 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 147 transitions, 306 flow [2023-01-27 18:22:15,813 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 147 transitions, 306 flow [2023-01-27 18:22:15,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 147 transitions, 306 flow [2023-01-27 18:22:15,839 INFO L130 PetriNetUnfolder]: 5/178 cut-off events. [2023-01-27 18:22:15,840 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:22:15,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 178 events. 5/178 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 286 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 94. Up to 4 conditions per place. [2023-01-27 18:22:15,842 INFO L119 LiptonReduction]: Number of co-enabled transitions 2704 [2023-01-27 18:22:22,974 INFO L134 LiptonReduction]: Checked pairs total: 6343 [2023-01-27 18:22:22,974 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-01-27 18:22:22,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:22:22,995 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1d0d5aef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:22:22,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-01-27 18:22:23,003 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-01-27 18:22:23,003 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:22:23,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:23,003 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-27 18:22:23,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:22:23,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:23,007 INFO L85 PathProgramCache]: Analyzing trace with hash 556061324, now seen corresponding path program 1 times [2023-01-27 18:22:23,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:23,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944767810] [2023-01-27 18:22:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:23,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:22:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:22:23,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:22:23,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944767810] [2023-01-27 18:22:23,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944767810] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:22:23,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:22:23,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:22:23,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421239928] [2023-01-27 18:22:23,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:22:23,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:22:23,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:22:23,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:22:23,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:22:23,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 301 [2023-01-27 18:22:23,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2023-01-27 18:22:23,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:22:23,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 301 [2023-01-27 18:22:23,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:22:23,752 INFO L130 PetriNetUnfolder]: 887/1487 cut-off events. [2023-01-27 18:22:23,753 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-01-27 18:22:23,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2999 conditions, 1487 events. 887/1487 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7100 event pairs, 642 based on Foata normal form. 37/1343 useless extension candidates. Maximal degree in co-relation 2896. Up to 1268 conditions per place. [2023-01-27 18:22:23,761 INFO L137 encePairwiseOnDemand]: 293/301 looper letters, 40 selfloop transitions, 6 changer transitions 0/46 dead transitions. [2023-01-27 18:22:23,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 196 flow [2023-01-27 18:22:23,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:22:23,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:22:23,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-01-27 18:22:23,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4230343300110742 [2023-01-27 18:22:23,771 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-01-27 18:22:23,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-01-27 18:22:23,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:22:23,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-01-27 18:22:23,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2023-01-27 18:22:23,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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) [2023-01-27 18:22:23,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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) [2023-01-27 18:22:23,783 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 82 flow. Second operand 3 states and 382 transitions. [2023-01-27 18:22:23,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 196 flow [2023-01-27 18:22:23,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 46 transitions, 188 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-27 18:22:23,788 INFO L231 Difference]: Finished difference. Result has 38 places, 38 transitions, 108 flow [2023-01-27 18:22:23,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2023-01-27 18:22:23,792 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2023-01-27 18:22:23,792 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 108 flow [2023-01-27 18:22:23,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2023-01-27 18:22:23,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:23,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-27 18:22:23,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:22:23,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:22:23,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:23,793 INFO L85 PathProgramCache]: Analyzing trace with hash 17937463, now seen corresponding path program 1 times [2023-01-27 18:22:23,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:23,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444626319] [2023-01-27 18:22:23,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:23,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:22:23,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:22:23,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:22:23,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444626319] [2023-01-27 18:22:23,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444626319] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:22:23,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:22:23,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:22:23,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410944878] [2023-01-27 18:22:23,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:22:23,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:22:23,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:22:23,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:22:23,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:22:23,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 301 [2023-01-27 18:22:23,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-01-27 18:22:23,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:22:23,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 301 [2023-01-27 18:22:23,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:22:24,159 INFO L130 PetriNetUnfolder]: 1003/1694 cut-off events. [2023-01-27 18:22:24,160 INFO L131 PetriNetUnfolder]: For 407/407 co-relation queries the response was YES. [2023-01-27 18:22:24,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 1694 events. 1003/1694 cut-off events. For 407/407 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 8453 event pairs, 718 based on Foata normal form. 0/1519 useless extension candidates. Maximal degree in co-relation 2139. Up to 1475 conditions per place. [2023-01-27 18:22:24,167 INFO L137 encePairwiseOnDemand]: 294/301 looper letters, 43 selfloop transitions, 9 changer transitions 2/54 dead transitions. [2023-01-27 18:22:24,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 54 transitions, 271 flow [2023-01-27 18:22:24,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:22:24,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:22:24,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2023-01-27 18:22:24,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42081949058693247 [2023-01-27 18:22:24,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2023-01-27 18:22:24,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2023-01-27 18:22:24,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:22:24,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2023-01-27 18:22:24,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2023-01-27 18:22:24,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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) [2023-01-27 18:22:24,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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) [2023-01-27 18:22:24,172 INFO L175 Difference]: Start difference. First operand has 38 places, 38 transitions, 108 flow. Second operand 3 states and 380 transitions. [2023-01-27 18:22:24,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 54 transitions, 271 flow [2023-01-27 18:22:24,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:22:24,176 INFO L231 Difference]: Finished difference. Result has 40 places, 44 transitions, 173 flow [2023-01-27 18:22:24,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=40, PETRI_TRANSITIONS=44} [2023-01-27 18:22:24,177 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-01-27 18:22:24,177 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 44 transitions, 173 flow [2023-01-27 18:22:24,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-01-27 18:22:24,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:24,177 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:22:24,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:22:24,177 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:22:24,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:24,178 INFO L85 PathProgramCache]: Analyzing trace with hash -234562962, now seen corresponding path program 1 times [2023-01-27 18:22:24,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:24,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404849811] [2023-01-27 18:22:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:24,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:22:24,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:22:24,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:22:24,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404849811] [2023-01-27 18:22:24,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404849811] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:22:24,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:22:24,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:22:24,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051563365] [2023-01-27 18:22:24,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:22:24,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:22:24,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:22:24,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:22:24,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:22:24,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 301 [2023-01-27 18:22:24,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 44 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2023-01-27 18:22:24,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:22:24,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 301 [2023-01-27 18:22:24,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:22:24,470 INFO L130 PetriNetUnfolder]: 1317/2197 cut-off events. [2023-01-27 18:22:24,470 INFO L131 PetriNetUnfolder]: For 1267/1267 co-relation queries the response was YES. [2023-01-27 18:22:24,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5814 conditions, 2197 events. 1317/2197 cut-off events. For 1267/1267 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 11566 event pairs, 620 based on Foata normal form. 0/2096 useless extension candidates. Maximal degree in co-relation 3185. Up to 1725 conditions per place. [2023-01-27 18:22:24,478 INFO L137 encePairwiseOnDemand]: 292/301 looper letters, 54 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2023-01-27 18:22:24,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 62 transitions, 353 flow [2023-01-27 18:22:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:22:24,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:22:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-01-27 18:22:24,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4318936877076412 [2023-01-27 18:22:24,480 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-01-27 18:22:24,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-01-27 18:22:24,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:22:24,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-01-27 18:22:24,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) [2023-01-27 18:22:24,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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) [2023-01-27 18:22:24,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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) [2023-01-27 18:22:24,483 INFO L175 Difference]: Start difference. First operand has 40 places, 44 transitions, 173 flow. Second operand 3 states and 390 transitions. [2023-01-27 18:22:24,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 62 transitions, 353 flow [2023-01-27 18:22:24,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 62 transitions, 343 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:22:24,485 INFO L231 Difference]: Finished difference. Result has 43 places, 51 transitions, 244 flow [2023-01-27 18:22:24,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=43, PETRI_TRANSITIONS=51} [2023-01-27 18:22:24,485 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2023-01-27 18:22:24,485 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 51 transitions, 244 flow [2023-01-27 18:22:24,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2023-01-27 18:22:24,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:24,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:22:24,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 18:22:24,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:22:24,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1318483104, now seen corresponding path program 1 times [2023-01-27 18:22:24,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:24,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518733559] [2023-01-27 18:22:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:24,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:22:24,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:22:24,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:22:24,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518733559] [2023-01-27 18:22:24,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518733559] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:22:24,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:22:24,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:22:24,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973343211] [2023-01-27 18:22:24,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:22:24,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:22:24,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:22:24,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:22:24,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:22:24,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 301 [2023-01-27 18:22:24,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 51 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2023-01-27 18:22:24,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:22:24,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 301 [2023-01-27 18:22:24,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:22:24,763 INFO L130 PetriNetUnfolder]: 1580/2622 cut-off events. [2023-01-27 18:22:24,763 INFO L131 PetriNetUnfolder]: For 3371/3371 co-relation queries the response was YES. [2023-01-27 18:22:24,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7961 conditions, 2622 events. 1580/2622 cut-off events. For 3371/3371 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 14140 event pairs, 736 based on Foata normal form. 0/2557 useless extension candidates. Maximal degree in co-relation 687. Up to 1997 conditions per place. [2023-01-27 18:22:24,774 INFO L137 encePairwiseOnDemand]: 292/301 looper letters, 58 selfloop transitions, 14 changer transitions 0/72 dead transitions. [2023-01-27 18:22:24,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 72 transitions, 499 flow [2023-01-27 18:22:24,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:22:24,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:22:24,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2023-01-27 18:22:24,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43078626799557035 [2023-01-27 18:22:24,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2023-01-27 18:22:24,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2023-01-27 18:22:24,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:22:24,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2023-01-27 18:22:24,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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) [2023-01-27 18:22:24,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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) [2023-01-27 18:22:24,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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) [2023-01-27 18:22:24,779 INFO L175 Difference]: Start difference. First operand has 43 places, 51 transitions, 244 flow. Second operand 3 states and 389 transitions. [2023-01-27 18:22:24,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 72 transitions, 499 flow [2023-01-27 18:22:24,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 72 transitions, 441 flow, removed 16 selfloop flow, removed 2 redundant places. [2023-01-27 18:22:24,783 INFO L231 Difference]: Finished difference. Result has 45 places, 62 transitions, 352 flow [2023-01-27 18:22:24,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=45, PETRI_TRANSITIONS=62} [2023-01-27 18:22:24,783 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 6 predicate places. [2023-01-27 18:22:24,783 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 62 transitions, 352 flow [2023-01-27 18:22:24,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2023-01-27 18:22:24,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:24,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:22:24,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 18:22:24,784 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:22:24,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:24,784 INFO L85 PathProgramCache]: Analyzing trace with hash 911165254, now seen corresponding path program 1 times [2023-01-27 18:22:24,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:24,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259151021] [2023-01-27 18:22:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:24,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 18:22:24,806 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 18:22:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 18:22:24,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 18:22:24,834 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 18:22:24,834 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2023-01-27 18:22:24,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2023-01-27 18:22:24,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2023-01-27 18:22:24,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2023-01-27 18:22:24,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2023-01-27 18:22:24,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2023-01-27 18:22:24,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-01-27 18:22:24,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-01-27 18:22:24,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 18:22:24,836 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-01-27 18:22:24,839 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:22:24,839 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:22:24,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:22:24 BasicIcfg [2023-01-27 18:22:24,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:22:24,857 INFO L158 Benchmark]: Toolchain (without parser) took 10531.72ms. Allocated memory was 627.0MB in the beginning and 752.9MB in the end (delta: 125.8MB). Free memory was 574.2MB in the beginning and 334.0MB in the end (delta: 240.2MB). Peak memory consumption was 368.1MB. Max. memory is 16.0GB. [2023-01-27 18:22:24,857 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 381.7MB. Free memory is still 329.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:22:24,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.61ms. Allocated memory is still 627.0MB. Free memory was 574.1MB in the beginning and 520.6MB in the end (delta: 53.6MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. [2023-01-27 18:22:24,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.96ms. Allocated memory is still 627.0MB. Free memory was 520.6MB in the beginning and 590.1MB in the end (delta: -69.6MB). Peak memory consumption was 11.3MB. Max. memory is 16.0GB. [2023-01-27 18:22:24,858 INFO L158 Benchmark]: Boogie Preprocessor took 26.99ms. Allocated memory is still 627.0MB. Free memory was 590.1MB in the beginning and 588.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 18:22:24,858 INFO L158 Benchmark]: RCFGBuilder took 647.09ms. Allocated memory is still 627.0MB. Free memory was 588.0MB in the beginning and 558.6MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-01-27 18:22:24,859 INFO L158 Benchmark]: TraceAbstraction took 9218.36ms. Allocated memory was 627.0MB in the beginning and 752.9MB in the end (delta: 125.8MB). Free memory was 558.6MB in the beginning and 334.0MB in the end (delta: 224.6MB). Peak memory consumption was 348.4MB. Max. memory is 16.0GB. [2023-01-27 18:22:24,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 381.7MB. Free memory is still 329.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 570.61ms. Allocated memory is still 627.0MB. Free memory was 574.1MB in the beginning and 520.6MB in the end (delta: 53.6MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.96ms. Allocated memory is still 627.0MB. Free memory was 520.6MB in the beginning and 590.1MB in the end (delta: -69.6MB). Peak memory consumption was 11.3MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.99ms. Allocated memory is still 627.0MB. Free memory was 590.1MB in the beginning and 588.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 647.09ms. Allocated memory is still 627.0MB. Free memory was 588.0MB in the beginning and 558.6MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 9218.36ms. Allocated memory was 627.0MB in the beginning and 752.9MB in the end (delta: 125.8MB). Free memory was 558.6MB in the beginning and 334.0MB in the end (delta: 224.6MB). Peak memory consumption was 348.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 149 PlacesBefore, 39 PlacesAfterwards, 147 TransitionsBefore, 35 TransitionsAfterwards, 2704 CoEnabledTransitionPairs, 6 FixpointIterations, 72 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 16 ConcurrentYvCompositions, 2 ChoiceCompositions, 142 TotalNumberOfCompositions, 6343 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2530, independent: 2290, independent conditional: 0, independent unconditional: 2290, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1396, independent: 1344, independent conditional: 0, independent unconditional: 1344, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2530, independent: 946, independent conditional: 0, independent unconditional: 946, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 1396, unknown conditional: 0, unknown unconditional: 1396] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=-2, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=-1, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1716] 0 data->shared.a = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1719] 0 data->shared.b = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, res=0, t1={3:0}, t2={4:0}] [L1722] EXPR 0 data->shared.a [L1722] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 169 locations, 8 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: 9.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 294 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 18 mSDtfsCounter, 294 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352occurred in iteration=4, InterpolantAutomatonStates: 12, 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, 0.6s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-27 18:22:24,887 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...