/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 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/bigshot_s.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 06:12:39,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 06:12:39,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 06:12:39,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 06:12:39,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 06:12:39,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 06:12:39,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 06:12:39,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 06:12:39,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 06:12:39,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 06:12:39,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 06:12:39,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 06:12:39,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 06:12:39,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 06:12:39,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 06:12:39,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 06:12:39,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 06:12:39,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 06:12:39,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 06:12:39,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 06:12:39,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 06:12:39,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 06:12:39,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 06:12:39,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 06:12:39,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 06:12:39,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 06:12:39,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 06:12:39,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 06:12:39,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 06:12:39,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 06:12:39,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 06:12:39,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 06:12:39,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 06:12:39,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 06:12:39,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 06:12:39,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 06:12:39,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 06:12:39,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 06:12:39,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 06:12:39,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 06:12:39,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 06:12:39,914 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 [2023-01-28 06:12:39,932 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 06:12:39,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 06:12:39,933 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 06:12:39,933 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 06:12:39,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 06:12:39,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 06:12:39,933 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 06:12:39,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 06:12:39,934 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 06:12:39,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 06:12:39,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 06:12:39,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 06:12:39,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 06:12:39,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 06:12:39,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 06:12:39,934 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 06:12:39,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 06:12:39,935 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 06:12:39,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 06:12:39,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 06:12:39,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 06:12:39,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 06:12:39,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 06:12:39,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:12:39,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 06:12:39,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 06:12:39,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 06:12:39,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 06:12:39,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 06:12:39,936 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 06:12:39,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 06:12:39,936 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 06:12:40,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 06:12:40,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 06:12:40,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 06:12:40,136 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 06:12:40,137 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 06:12:40,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/bigshot_s.i [2023-01-28 06:12:41,104 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 06:12:41,310 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 06:12:41,310 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s.i [2023-01-28 06:12:41,319 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d10623af/2dfb0630cb614c52941c9c7c5f33fdf7/FLAGdc5139a95 [2023-01-28 06:12:41,328 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d10623af/2dfb0630cb614c52941c9c7c5f33fdf7 [2023-01-28 06:12:41,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 06:12:41,330 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 06:12:41,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 06:12:41,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 06:12:41,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 06:12:41,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@642d1a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41, skipping insertion in model container [2023-01-28 06:12:41,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 06:12:41,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 06:12:41,626 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s.i[55202,55215] [2023-01-28 06:12:41,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:12:41,649 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 06:12:41,683 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s.i[55202,55215] [2023-01-28 06:12:41,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:12:41,748 INFO L208 MainTranslator]: Completed translation [2023-01-28 06:12:41,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41 WrapperNode [2023-01-28 06:12:41,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 06:12:41,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 06:12:41,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 06:12:41,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 06:12:41,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,791 INFO L138 Inliner]: procedures = 323, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2023-01-28 06:12:41,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 06:12:41,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 06:12:41,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 06:12:41,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 06:12:41,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,820 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 06:12:41,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 06:12:41,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 06:12:41,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 06:12:41,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:12:41,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:12:41,855 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) [2023-01-28 06:12:41,867 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 [2023-01-28 06:12:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 06:12:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 06:12:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-01-28 06:12:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 06:12:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 06:12:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 06:12:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 06:12:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 06:12:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 06:12:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 06:12:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 06:12:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 06:12:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 06:12:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 06:12:41,885 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 06:12:41,976 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 06:12:41,978 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 06:12:42,142 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 06:12:42,146 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 06:12:42,147 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-01-28 06:12:42,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:12:42 BoogieIcfgContainer [2023-01-28 06:12:42,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 06:12:42,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 06:12:42,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 06:12:42,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 06:12:42,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 06:12:41" (1/3) ... [2023-01-28 06:12:42,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7ae90f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:12:42, skipping insertion in model container [2023-01-28 06:12:42,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41" (2/3) ... [2023-01-28 06:12:42,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7ae90f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:12:42, skipping insertion in model container [2023-01-28 06:12:42,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:12:42" (3/3) ... [2023-01-28 06:12:42,153 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s.i [2023-01-28 06:12:42,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 06:12:42,165 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 06:12:42,165 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 06:12:42,206 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 06:12:42,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 190 flow [2023-01-28 06:12:42,256 INFO L130 PetriNetUnfolder]: 5/85 cut-off events. [2023-01-28 06:12:42,256 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:12:42,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 85 events. 5/85 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-01-28 06:12:42,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 87 transitions, 190 flow [2023-01-28 06:12:42,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 73 transitions, 158 flow [2023-01-28 06:12:42,264 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:12:42,270 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 73 transitions, 158 flow [2023-01-28 06:12:42,272 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 73 transitions, 158 flow [2023-01-28 06:12:42,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 158 flow [2023-01-28 06:12:42,286 INFO L130 PetriNetUnfolder]: 4/73 cut-off events. [2023-01-28 06:12:42,286 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:12:42,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 4/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2023-01-28 06:12:42,287 INFO L119 LiptonReduction]: Number of co-enabled transitions 144 [2023-01-28 06:12:44,512 INFO L134 LiptonReduction]: Checked pairs total: 177 [2023-01-28 06:12:44,513 INFO L136 LiptonReduction]: Total number of compositions: 68 [2023-01-28 06:12:44,523 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 06:12:44,526 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;@feb096f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:12:44,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 06:12:44,529 INFO L130 PetriNetUnfolder]: 2/13 cut-off events. [2023-01-28 06:12:44,530 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:12:44,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:12:44,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:12:44,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 06:12:44,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:12:44,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1698875547, now seen corresponding path program 1 times [2023-01-28 06:12:44,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:12:44,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913407905] [2023-01-28 06:12:44,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:12:44,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:12:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:12:44,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:44,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:12:44,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913407905] [2023-01-28 06:12:44,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913407905] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:12:44,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:12:44,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:12:44,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860313879] [2023-01-28 06:12:44,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:12:44,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:12:44,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:12:44,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:12:44,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:12:44,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 155 [2023-01-28 06:12:44,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 14 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2023-01-28 06:12:44,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:12:44,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 155 [2023-01-28 06:12:44,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:12:44,748 INFO L130 PetriNetUnfolder]: 5/20 cut-off events. [2023-01-28 06:12:44,748 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:12:44,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 20 events. 5/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 2 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 29. Up to 17 conditions per place. [2023-01-28 06:12:44,749 INFO L137 encePairwiseOnDemand]: 153/155 looper letters, 13 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2023-01-28 06:12:44,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 14 transitions, 68 flow [2023-01-28 06:12:44,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:12:44,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:12:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2023-01-28 06:12:44,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5032258064516129 [2023-01-28 06:12:44,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2023-01-28 06:12:44,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2023-01-28 06:12:44,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:12:44,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2023-01-28 06:12:44,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2023-01-28 06:12:44,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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) [2023-01-28 06:12:44,770 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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) [2023-01-28 06:12:44,771 INFO L175 Difference]: Start difference. First operand has 19 places, 14 transitions, 40 flow. Second operand 3 states and 234 transitions. [2023-01-28 06:12:44,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 14 transitions, 68 flow [2023-01-28 06:12:44,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 14 transitions, 60 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 06:12:44,779 INFO L231 Difference]: Finished difference. Result has 17 places, 13 transitions, 32 flow [2023-01-28 06:12:44,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=17, PETRI_TRANSITIONS=13} [2023-01-28 06:12:44,784 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, -2 predicate places. [2023-01-28 06:12:44,785 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 13 transitions, 32 flow [2023-01-28 06:12:44,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2023-01-28 06:12:44,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:12:44,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:12:44,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 06:12:44,786 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 06:12:44,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:12:44,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1109150181, now seen corresponding path program 1 times [2023-01-28 06:12:44,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:12:44,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424426988] [2023-01-28 06:12:44,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:12:44,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:12:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:12:45,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:45,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:12:45,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424426988] [2023-01-28 06:12:45,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424426988] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:12:45,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:12:45,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 06:12:45,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497591572] [2023-01-28 06:12:45,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:12:45,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 06:12:45,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:12:45,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 06:12:45,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-01-28 06:12:45,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 155 [2023-01-28 06:12:45,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 32 flow. Second operand has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 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) [2023-01-28 06:12:45,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:12:45,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 155 [2023-01-28 06:12:45,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:12:45,153 INFO L130 PetriNetUnfolder]: 9/28 cut-off events. [2023-01-28 06:12:45,154 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 06:12:45,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 28 events. 9/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 2 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 45. Up to 13 conditions per place. [2023-01-28 06:12:45,154 INFO L137 encePairwiseOnDemand]: 151/155 looper letters, 13 selfloop transitions, 5 changer transitions 0/18 dead transitions. [2023-01-28 06:12:45,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 18 transitions, 78 flow [2023-01-28 06:12:45,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 06:12:45,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 06:12:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 227 transitions. [2023-01-28 06:12:45,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36612903225806454 [2023-01-28 06:12:45,156 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 227 transitions. [2023-01-28 06:12:45,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 227 transitions. [2023-01-28 06:12:45,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:12:45,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 227 transitions. [2023-01-28 06:12:45,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 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) [2023-01-28 06:12:45,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 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) [2023-01-28 06:12:45,159 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 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) [2023-01-28 06:12:45,159 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 4 states and 227 transitions. [2023-01-28 06:12:45,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 18 transitions, 78 flow [2023-01-28 06:12:45,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 18 transitions, 77 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 06:12:45,159 INFO L231 Difference]: Finished difference. Result has 21 places, 16 transitions, 60 flow [2023-01-28 06:12:45,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=21, PETRI_TRANSITIONS=16} [2023-01-28 06:12:45,160 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 2 predicate places. [2023-01-28 06:12:45,160 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 16 transitions, 60 flow [2023-01-28 06:12:45,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 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) [2023-01-28 06:12:45,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:12:45,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:12:45,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 06:12:45,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 06:12:45,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:12:45,162 INFO L85 PathProgramCache]: Analyzing trace with hash -18079033, now seen corresponding path program 1 times [2023-01-28 06:12:45,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:12:45,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060114457] [2023-01-28 06:12:45,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:12:45,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:12:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:12:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:45,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:12:45,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060114457] [2023-01-28 06:12:45,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060114457] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 06:12:45,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120607369] [2023-01-28 06:12:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:12:45,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:12:45,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:12:45,531 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 06:12:45,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 06:12:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:12:45,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 39 conjunts are in the unsatisfiable core [2023-01-28 06:12:45,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 06:12:45,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 06:12:45,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-28 06:12:45,708 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-01-28 06:12:45,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2023-01-28 06:12:45,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-28 06:12:45,852 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-01-28 06:12:45,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-01-28 06:12:45,906 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 06:12:45,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-01-28 06:12:45,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:45,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 06:12:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:46,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120607369] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 06:12:46,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 06:12:46,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 17 [2023-01-28 06:12:46,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089696432] [2023-01-28 06:12:46,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 06:12:46,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-01-28 06:12:46,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:12:46,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-01-28 06:12:46,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2023-01-28 06:12:46,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 155 [2023-01-28 06:12:46,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 16 transitions, 60 flow. Second operand has 18 states, 18 states have (on average 42.0) internal successors, (756), 18 states have internal predecessors, (756), 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) [2023-01-28 06:12:46,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:12:46,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 155 [2023-01-28 06:12:46,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:12:46,367 INFO L130 PetriNetUnfolder]: 14/45 cut-off events. [2023-01-28 06:12:46,368 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-01-28 06:12:46,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 45 events. 14/45 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 68 event pairs, 1 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 115. Up to 14 conditions per place. [2023-01-28 06:12:46,368 INFO L137 encePairwiseOnDemand]: 150/155 looper letters, 17 selfloop transitions, 8 changer transitions 5/30 dead transitions. [2023-01-28 06:12:46,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 30 transitions, 165 flow [2023-01-28 06:12:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 06:12:46,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 06:12:46,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 393 transitions. [2023-01-28 06:12:46,370 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2817204301075269 [2023-01-28 06:12:46,370 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 393 transitions. [2023-01-28 06:12:46,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 393 transitions. [2023-01-28 06:12:46,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:12:46,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 393 transitions. [2023-01-28 06:12:46,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 43.666666666666664) internal successors, (393), 9 states have internal predecessors, (393), 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) [2023-01-28 06:12:46,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 155.0) internal successors, (1550), 10 states have internal predecessors, (1550), 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) [2023-01-28 06:12:46,374 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 155.0) internal successors, (1550), 10 states have internal predecessors, (1550), 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) [2023-01-28 06:12:46,374 INFO L175 Difference]: Start difference. First operand has 21 places, 16 transitions, 60 flow. Second operand 9 states and 393 transitions. [2023-01-28 06:12:46,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 30 transitions, 165 flow [2023-01-28 06:12:46,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 30 transitions, 163 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-01-28 06:12:46,375 INFO L231 Difference]: Finished difference. Result has 33 places, 19 transitions, 104 flow [2023-01-28 06:12:46,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=104, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2023-01-28 06:12:46,376 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 14 predicate places. [2023-01-28 06:12:46,376 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 104 flow [2023-01-28 06:12:46,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 42.0) internal successors, (756), 18 states have internal predecessors, (756), 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) [2023-01-28 06:12:46,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:12:46,376 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:12:46,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 06:12:46,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:12:46,585 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 06:12:46,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:12:46,586 INFO L85 PathProgramCache]: Analyzing trace with hash -53489865, now seen corresponding path program 2 times [2023-01-28 06:12:46,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:12:46,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929398311] [2023-01-28 06:12:46,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:12:46,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:12:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:12:46,902 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:46,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:12:46,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929398311] [2023-01-28 06:12:46,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929398311] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 06:12:46,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432864683] [2023-01-28 06:12:46,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 06:12:46,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:12:46,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:12:46,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 06:12:46,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 06:12:46,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 06:12:46,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 06:12:46,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 34 conjunts are in the unsatisfiable core [2023-01-28 06:12:46,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 06:12:47,016 INFO L321 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2023-01-28 06:12:47,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 53 [2023-01-28 06:12:47,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-28 06:12:47,060 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 06:12:47,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-01-28 06:12:47,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-28 06:12:47,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-28 06:12:47,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-28 06:12:47,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-28 06:12:47,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-28 06:12:47,251 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:47,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 06:12:47,276 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_113 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_113) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset| 1)))) is different from false [2023-01-28 06:12:47,315 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_113 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_113) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| 3 |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset|)))) is different from false [2023-01-28 06:12:47,319 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_113 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_113) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset| 4)))) is different from false [2023-01-28 06:12:47,428 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2023-01-28 06:12:47,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432864683] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 06:12:47,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 06:12:47,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 26 [2023-01-28 06:12:47,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186772553] [2023-01-28 06:12:47,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 06:12:47,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-01-28 06:12:47,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:12:47,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-01-28 06:12:47,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=489, Unknown=6, NotChecked=138, Total=702 [2023-01-28 06:12:47,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 155 [2023-01-28 06:12:47,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 104 flow. Second operand has 27 states, 27 states have (on average 41.629629629629626) internal successors, (1124), 27 states have internal predecessors, (1124), 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) [2023-01-28 06:12:47,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:12:47,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 155 [2023-01-28 06:12:47,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:12:49,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 06:12:50,129 INFO L130 PetriNetUnfolder]: 15/50 cut-off events. [2023-01-28 06:12:50,129 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2023-01-28 06:12:50,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 50 events. 15/50 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 1 based on Foata normal form. 3/53 useless extension candidates. Maximal degree in co-relation 186. Up to 17 conditions per place. [2023-01-28 06:12:50,130 INFO L137 encePairwiseOnDemand]: 150/155 looper letters, 17 selfloop transitions, 14 changer transitions 5/36 dead transitions. [2023-01-28 06:12:50,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 36 transitions, 256 flow [2023-01-28 06:12:50,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-28 06:12:50,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-28 06:12:50,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 518 transitions. [2023-01-28 06:12:50,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.278494623655914 [2023-01-28 06:12:50,132 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 518 transitions. [2023-01-28 06:12:50,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 518 transitions. [2023-01-28 06:12:50,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:12:50,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 518 transitions. [2023-01-28 06:12:50,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 43.166666666666664) internal successors, (518), 12 states have internal predecessors, (518), 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) [2023-01-28 06:12:50,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 155.0) internal successors, (2015), 13 states have internal predecessors, (2015), 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) [2023-01-28 06:12:50,135 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 155.0) internal successors, (2015), 13 states have internal predecessors, (2015), 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) [2023-01-28 06:12:50,135 INFO L175 Difference]: Start difference. First operand has 33 places, 19 transitions, 104 flow. Second operand 12 states and 518 transitions. [2023-01-28 06:12:50,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 36 transitions, 256 flow [2023-01-28 06:12:50,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 36 transitions, 220 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-01-28 06:12:50,137 INFO L231 Difference]: Finished difference. Result has 39 places, 25 transitions, 145 flow [2023-01-28 06:12:50,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=145, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2023-01-28 06:12:50,137 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 20 predicate places. [2023-01-28 06:12:50,137 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 145 flow [2023-01-28 06:12:50,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 41.629629629629626) internal successors, (1124), 27 states have internal predecessors, (1124), 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) [2023-01-28 06:12:50,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:12:50,138 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:12:50,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-01-28 06:12:50,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-01-28 06:12:50,343 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 06:12:50,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:12:50,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1658603715, now seen corresponding path program 3 times [2023-01-28 06:12:50,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:12:50,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941490892] [2023-01-28 06:12:50,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:12:50,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:12:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:12:50,779 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:50,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:12:50,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941490892] [2023-01-28 06:12:50,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941490892] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 06:12:50,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163415031] [2023-01-28 06:12:50,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 06:12:50,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:12:50,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:12:50,781 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 06:12:50,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 06:12:50,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-01-28 06:12:50,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 06:12:50,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 57 conjunts are in the unsatisfiable core [2023-01-28 06:12:50,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 06:12:50,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 06:12:50,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-28 06:12:50,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 06:12:50,931 INFO L321 Elim1Store]: treesize reduction 28, result has 42.9 percent of original size [2023-01-28 06:12:50,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 40 [2023-01-28 06:12:50,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-28 06:12:51,064 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-01-28 06:12:51,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-01-28 06:12:51,104 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 06:12:51,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-01-28 06:12:51,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 06:12:51,155 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 06:12:51,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-01-28 06:12:51,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 06:12:51,198 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 06:12:51,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-01-28 06:12:51,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 06:12:51,244 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 06:12:51,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-01-28 06:12:51,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 06:12:51,290 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 06:12:51,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-01-28 06:12:51,382 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:51,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 06:14:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 5 refuted. 6 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:14:04,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163415031] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 06:14:04,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 06:14:04,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 31 [2023-01-28 06:14:04,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011815305] [2023-01-28 06:14:04,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 06:14:04,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-01-28 06:14:04,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:14:04,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-01-28 06:14:04,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=816, Unknown=32, NotChecked=0, Total=992 [2023-01-28 06:14:04,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 155 [2023-01-28 06:14:04,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 145 flow. Second operand has 32 states, 32 states have (on average 41.59375) internal successors, (1331), 32 states have internal predecessors, (1331), 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) [2023-01-28 06:14:04,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:14:04,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 155 [2023-01-28 06:14:04,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:14:05,374 INFO L130 PetriNetUnfolder]: 11/40 cut-off events. [2023-01-28 06:14:05,374 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2023-01-28 06:14:05,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 40 events. 11/40 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 1 based on Foata normal form. 4/44 useless extension candidates. Maximal degree in co-relation 134. Up to 12 conditions per place. [2023-01-28 06:14:05,375 INFO L137 encePairwiseOnDemand]: 150/155 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-01-28 06:14:05,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 28 transitions, 197 flow [2023-01-28 06:14:05,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 06:14:05,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 06:14:05,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 427 transitions. [2023-01-28 06:14:05,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.27548387096774196 [2023-01-28 06:14:05,377 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 427 transitions. [2023-01-28 06:14:05,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 427 transitions. [2023-01-28 06:14:05,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:14:05,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 427 transitions. [2023-01-28 06:14:05,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 42.7) internal successors, (427), 10 states have internal predecessors, (427), 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) [2023-01-28 06:14:05,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 155.0) internal successors, (1705), 11 states have internal predecessors, (1705), 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) [2023-01-28 06:14:05,380 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 155.0) internal successors, (1705), 11 states have internal predecessors, (1705), 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) [2023-01-28 06:14:05,380 INFO L175 Difference]: Start difference. First operand has 39 places, 25 transitions, 145 flow. Second operand 10 states and 427 transitions. [2023-01-28 06:14:05,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 28 transitions, 197 flow [2023-01-28 06:14:05,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 28 transitions, 151 flow, removed 9 selfloop flow, removed 10 redundant places. [2023-01-28 06:14:05,381 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-01-28 06:14:05,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-01-28 06:14:05,382 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 17 predicate places. [2023-01-28 06:14:05,382 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-01-28 06:14:05,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 41.59375) internal successors, (1331), 32 states have internal predecessors, (1331), 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) [2023-01-28 06:14:05,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 06:14:05,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 06:14:05,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-01-28 06:14:05,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 06:14:05,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 06:14:05,592 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2023-01-28 06:14:05,595 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 06:14:05,595 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 06:14:05,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 06:14:05 BasicIcfg [2023-01-28 06:14:05,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 06:14:05,597 INFO L158 Benchmark]: Toolchain (without parser) took 84266.43ms. Allocated memory was 385.9MB in the beginning and 463.5MB in the end (delta: 77.6MB). Free memory was 337.4MB in the beginning and 317.1MB in the end (delta: 20.3MB). Peak memory consumption was 99.9MB. Max. memory is 16.0GB. [2023-01-28 06:14:05,597 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:14:05,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.71ms. Allocated memory is still 385.9MB. Free memory was 337.1MB in the beginning and 358.0MB in the end (delta: -20.9MB). Peak memory consumption was 36.6MB. Max. memory is 16.0GB. [2023-01-28 06:14:05,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.39ms. Allocated memory is still 385.9MB. Free memory was 358.0MB in the beginning and 355.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 06:14:05,598 INFO L158 Benchmark]: Boogie Preprocessor took 35.30ms. Allocated memory is still 385.9MB. Free memory was 355.1MB in the beginning and 353.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:14:05,598 INFO L158 Benchmark]: RCFGBuilder took 320.81ms. Allocated memory is still 385.9MB. Free memory was 353.8MB in the beginning and 339.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-01-28 06:14:05,598 INFO L158 Benchmark]: TraceAbstraction took 83447.27ms. Allocated memory was 385.9MB in the beginning and 463.5MB in the end (delta: 77.6MB). Free memory was 338.4MB in the beginning and 317.1MB in the end (delta: 21.3MB). Peak memory consumption was 99.0MB. Max. memory is 16.0GB. [2023-01-28 06:14:05,601 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 is still 213.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 417.71ms. Allocated memory is still 385.9MB. Free memory was 337.1MB in the beginning and 358.0MB in the end (delta: -20.9MB). Peak memory consumption was 36.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.39ms. Allocated memory is still 385.9MB. Free memory was 358.0MB in the beginning and 355.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.30ms. Allocated memory is still 385.9MB. Free memory was 355.1MB in the beginning and 353.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 320.81ms. Allocated memory is still 385.9MB. Free memory was 353.8MB in the beginning and 339.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 83447.27ms. Allocated memory was 385.9MB in the beginning and 463.5MB in the end (delta: 77.6MB). Free memory was 338.4MB in the beginning and 317.1MB in the end (delta: 21.3MB). Peak memory consumption was 99.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 76 PlacesBefore, 19 PlacesAfterwards, 73 TransitionsBefore, 14 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 177 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 154, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 90, independent: 86, independent conditional: 0, independent unconditional: 86, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 154, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 90, unknown conditional: 0, unknown unconditional: 90] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1107]: 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, 108 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: 83.4s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 31 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 105 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 762 IncrementalHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 0 mSDtfsCounter, 762 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 100 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 74.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=4, InterpolantAutomatonStates: 38, 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, 0.2s SatisfiabilityAnalysisTime, 76.2s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 150 ConstructedInterpolants, 29 QuantifiedInterpolants, 2736 SizeOfPredicates, 26 NumberOfNonLiveVariables, 621 ConjunctsInSsa, 130 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 10/78 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! [2023-01-28 06:14:05,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...