/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stack_longest-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7707f89-m [2022-11-15 22:28:55,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-15 22:28:55,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-15 22:28:55,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-15 22:28:55,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-15 22:28:55,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-15 22:28:55,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-15 22:28:55,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-15 22:28:55,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-15 22:28:55,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-15 22:28:55,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-15 22:28:55,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-15 22:28:55,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-15 22:28:55,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-15 22:28:55,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-15 22:28:55,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-15 22:28:55,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-15 22:28:55,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-15 22:28:55,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-15 22:28:55,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-15 22:28:55,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-15 22:28:55,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-15 22:28:55,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-15 22:28:55,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-15 22:28:55,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-11-15 22:28:55,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-15 22:28:55,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-15 22:28:55,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-15 22:28:55,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-15 22:28:55,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-15 22:28:55,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-15 22:28:55,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-15 22:28:55,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-15 22:28:55,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-15 22:28:55,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-15 22:28:55,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-15 22:28:55,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-15 22:28:55,184 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-15 22:28:55,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-15 22:28:55,185 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-15 22:28:55,185 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-15 22:28:55,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-15 22:28:55,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-15 22:28:55,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-15 22:28:55,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-15 22:28:55,186 INFO L138 SettingsManager]: * Use SBE=true [2022-11-15 22:28:55,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-15 22:28:55,187 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-15 22:28:55,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-15 22:28:55,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-15 22:28:55,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-15 22:28:55,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-15 22:28:55,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-15 22:28:55,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-15 22:28:55,188 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-15 22:28:55,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-15 22:28:55,188 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-15 22:28:55,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-15 22:28:55,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-15 22:28:55,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-15 22:28:55,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-15 22:28:55,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-15 22:28:55,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-15 22:28:55,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-15 22:28:55,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-15 22:28:55,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-15 22:28:55,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-15 22:28:55,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-15 22:28:55,190 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-15 22:28:55,190 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-15 22:28:55,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-15 22:28:55,190 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-15 22:28:55,190 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-15 22:28:55,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-11-15 22:28:55,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-15 22:28:55,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-15 22:28:55,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-15 22:28:55,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-15 22:28:55,371 INFO L275 PluginConnector]: CDTParser initialized [2022-11-15 22:28:55,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-2.i [2022-11-15 22:28:55,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f8fa5493/c49789a52d284da8b0a7ce6a5d0fcdc5/FLAG5cbd41d2e [2022-11-15 22:28:55,820 INFO L306 CDTParser]: Found 1 translation units. [2022-11-15 22:28:55,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i [2022-11-15 22:28:55,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f8fa5493/c49789a52d284da8b0a7ce6a5d0fcdc5/FLAG5cbd41d2e [2022-11-15 22:28:55,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f8fa5493/c49789a52d284da8b0a7ce6a5d0fcdc5 [2022-11-15 22:28:55,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-15 22:28:55,854 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-15 22:28:55,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-15 22:28:55,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-15 22:28:55,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-15 22:28:55,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:28:55" (1/1) ... [2022-11-15 22:28:55,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d0d9f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:55, skipping insertion in model container [2022-11-15 22:28:55,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:28:55" (1/1) ... [2022-11-15 22:28:55,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-15 22:28:55,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-15 22:28:56,174 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i[41530,41543] [2022-11-15 22:28:56,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-15 22:28:56,203 INFO L203 MainTranslator]: Completed pre-run [2022-11-15 22:28:56,224 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i[41530,41543] [2022-11-15 22:28:56,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-15 22:28:56,264 INFO L208 MainTranslator]: Completed translation [2022-11-15 22:28:56,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56 WrapperNode [2022-11-15 22:28:56,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-15 22:28:56,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-15 22:28:56,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-15 22:28:56,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-15 22:28:56,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (1/1) ... [2022-11-15 22:28:56,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (1/1) ... [2022-11-15 22:28:56,318 INFO L138 Inliner]: procedures = 277, calls = 40, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 150 [2022-11-15 22:28:56,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-15 22:28:56,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-15 22:28:56,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-15 22:28:56,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-15 22:28:56,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (1/1) ... [2022-11-15 22:28:56,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (1/1) ... [2022-11-15 22:28:56,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (1/1) ... [2022-11-15 22:28:56,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (1/1) ... [2022-11-15 22:28:56,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (1/1) ... [2022-11-15 22:28:56,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (1/1) ... [2022-11-15 22:28:56,352 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (1/1) ... [2022-11-15 22:28:56,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (1/1) ... [2022-11-15 22:28:56,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-15 22:28:56,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-15 22:28:56,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-15 22:28:56,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-15 22:28:56,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (1/1) ... [2022-11-15 22:28:56,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-15 22:28:56,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-15 22:28:56,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-15 22:28:56,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-15 22:28:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-15 22:28:56,411 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-15 22:28:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-15 22:28:56,411 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-15 22:28:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-15 22:28:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-15 22:28:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-15 22:28:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-15 22:28:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-15 22:28:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-15 22:28:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-15 22:28:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-15 22:28:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-15 22:28:56,417 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-15 22:28:56,506 INFO L235 CfgBuilder]: Building ICFG [2022-11-15 22:28:56,508 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-15 22:28:56,761 INFO L276 CfgBuilder]: Performing block encoding [2022-11-15 22:28:56,767 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-15 22:28:56,767 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-15 22:28:56,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:28:56 BoogieIcfgContainer [2022-11-15 22:28:56,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-15 22:28:56,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-15 22:28:56,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-15 22:28:56,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-15 22:28:56,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:28:55" (1/3) ... [2022-11-15 22:28:56,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8add4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:28:56, skipping insertion in model container [2022-11-15 22:28:56,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:56" (2/3) ... [2022-11-15 22:28:56,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8add4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:28:56, skipping insertion in model container [2022-11-15 22:28:56,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:28:56" (3/3) ... [2022-11-15 22:28:56,775 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longest-2.i [2022-11-15 22:28:56,781 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-15 22:28:56,787 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-15 22:28:56,787 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-15 22:28:56,787 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-15 22:28:56,844 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-15 22:28:56,874 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-15 22:28:56,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-15 22:28:56,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-15 22:28:56,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-15 22:28:56,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-15 22:28:56,906 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-15 22:28:56,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2022-11-15 22:28:56,918 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@50b0ec5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-15 22:28:56,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-15 22:28:57,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-15 22:28:57,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:28:57,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1724827981, now seen corresponding path program 1 times [2022-11-15 22:28:57,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:28:57,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885535293] [2022-11-15 22:28:57,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:28:57,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:28:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:28:57,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:28:57,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-15 22:28:57,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885535293] [2022-11-15 22:28:57,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885535293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-15 22:28:57,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-15 22:28:57,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-15 22:28:57,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444668251] [2022-11-15 22:28:57,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-15 22:28:57,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-15 22:28:57,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-15 22:28:57,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-15 22:28:57,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-15 22:28:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:57,348 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-15 22:28:57,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-15 22:28:57,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:57,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:57,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-15 22:28:57,381 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-15 22:28:57,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:28:57,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1420269133, now seen corresponding path program 1 times [2022-11-15 22:28:57,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:28:57,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637226779] [2022-11-15 22:28:57,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:28:57,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:28:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:28:57,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:28:57,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-15 22:28:57,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637226779] [2022-11-15 22:28:57,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637226779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-15 22:28:57,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-15 22:28:57,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-15 22:28:57,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135575748] [2022-11-15 22:28:57,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-15 22:28:57,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-15 22:28:57,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-15 22:28:57,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-15 22:28:57,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-15 22:28:57,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:57,504 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-15 22:28:57,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-15 22:28:57,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:57,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:57,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:57,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:28:57,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-15 22:28:57,540 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-15 22:28:57,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:28:57,542 INFO L85 PathProgramCache]: Analyzing trace with hash 659731518, now seen corresponding path program 1 times [2022-11-15 22:28:57,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:28:57,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614187427] [2022-11-15 22:28:57,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:28:57,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:28:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:28:57,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:28:57,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-15 22:28:57,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614187427] [2022-11-15 22:28:57,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614187427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-15 22:28:57,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-15 22:28:57,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-15 22:28:57,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888166463] [2022-11-15 22:28:57,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-15 22:28:57,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-15 22:28:57,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-15 22:28:57,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-15 22:28:57,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-15 22:28:57,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:57,651 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-15 22:28:57,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-15 22:28:57,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:57,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:28:57,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:28:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:28:57,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-15 22:28:57,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-15 22:28:57,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:28:57,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1559319774, now seen corresponding path program 1 times [2022-11-15 22:28:57,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:28:57,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403205333] [2022-11-15 22:28:57,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:28:57,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:28:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:28:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:28:57,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-15 22:28:57,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403205333] [2022-11-15 22:28:57,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403205333] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-15 22:28:57,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704265217] [2022-11-15 22:28:57,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:28:57,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-15 22:28:57,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-15 22:28:57,835 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) [2022-11-15 22:28:57,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-15 22:28:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:28:57,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-15 22:28:57,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-15 22:28:58,084 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:28:58,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-15 22:28:58,224 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:28:58,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704265217] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-15 22:28:58,224 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-15 22:28:58,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-15 22:28:58,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700008899] [2022-11-15 22:28:58,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-15 22:28:58,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-15 22:28:58,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-15 22:28:58,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-15 22:28:58,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-15 22:28:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:58,228 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-15 22:28:58,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.8) internal successors, (228), 10 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-15 22:28:58,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:58,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:28:58,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:28:58,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:28:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:28:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-15 22:28:58,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-15 22:28:58,521 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 [2022-11-15 22:28:58,521 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-15 22:28:58,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:28:58,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1174792692, now seen corresponding path program 2 times [2022-11-15 22:28:58,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:28:58,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177138440] [2022-11-15 22:28:58,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:28:58,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:28:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:28:58,805 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 12 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:28:58,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-15 22:28:58,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177138440] [2022-11-15 22:28:58,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177138440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-15 22:28:58,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99896083] [2022-11-15 22:28:58,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-15 22:28:58,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-15 22:28:58,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-15 22:28:58,809 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) [2022-11-15 22:28:58,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-15 22:28:58,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-15 22:28:58,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-15 22:28:58,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-15 22:28:58,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-15 22:28:59,097 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 12 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:28:59,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-15 22:28:59,274 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 12 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:28:59,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99896083] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-15 22:28:59,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-15 22:28:59,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-15 22:28:59,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603938453] [2022-11-15 22:28:59,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-15 22:28:59,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-15 22:28:59,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-15 22:28:59,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-15 22:28:59,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-15 22:28:59,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:59,277 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-15 22:28:59,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 22.0) internal successors, (396), 18 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-15 22:28:59,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:59,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:28:59,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:28:59,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-15 22:28:59,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:59,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:28:59,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:28:59,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:28:59,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-15 22:28:59,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-15 22:28:59,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-15 22:28:59,615 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 [2022-11-15 22:28:59,615 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-15 22:28:59,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:28:59,615 INFO L85 PathProgramCache]: Analyzing trace with hash 771797216, now seen corresponding path program 3 times [2022-11-15 22:28:59,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:28:59,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698471679] [2022-11-15 22:28:59,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:28:59,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:28:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:29:00,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 28 proven. 1008 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:29:00,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-15 22:29:00,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698471679] [2022-11-15 22:29:00,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698471679] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-15 22:29:00,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286731436] [2022-11-15 22:29:00,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-15 22:29:00,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-15 22:29:00,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-15 22:29:00,163 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-15 22:29:00,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-15 22:29:00,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-15 22:29:00,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-15 22:29:00,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-15 22:29:00,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-15 22:29:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 28 proven. 1008 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:29:00,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-15 22:29:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 28 proven. 1008 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:29:01,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286731436] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-15 22:29:01,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-15 22:29:01,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-15 22:29:01,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187381385] [2022-11-15 22:29:01,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-15 22:29:01,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-15 22:29:01,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-15 22:29:01,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-15 22:29:01,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-15 22:29:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:29:01,094 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-15 22:29:01,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 21.529411764705884) internal successors, (732), 34 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-15 22:29:01,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:29:01,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:29:01,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:29:01,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-15 22:29:01,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-15 22:29:01,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:29:01,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:29:01,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:29:01,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:29:01,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-15 22:29:01,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-15 22:29:01,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-15 22:29:01,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-15 22:29:01,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-15 22:29:01,725 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-15 22:29:01,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:29:01,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1468201608, now seen corresponding path program 4 times [2022-11-15 22:29:01,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:29:01,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207551998] [2022-11-15 22:29:01,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:29:01,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:29:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:29:03,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4740 backedges. 60 proven. 4680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:29:03,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-15 22:29:03,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207551998] [2022-11-15 22:29:03,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207551998] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-15 22:29:03,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736386626] [2022-11-15 22:29:03,215 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-15 22:29:03,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-15 22:29:03,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-15 22:29:03,217 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-15 22:29:03,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-15 22:29:04,557 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-15 22:29:04,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-15 22:29:04,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-15 22:29:04,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-15 22:29:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 4740 backedges. 60 proven. 4680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:29:05,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-15 22:29:06,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4740 backedges. 60 proven. 4680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:29:06,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736386626] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-15 22:29:06,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-15 22:29:06,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-15 22:29:06,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932393022] [2022-11-15 22:29:06,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-15 22:29:06,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-15 22:29:06,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-15 22:29:06,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-15 22:29:06,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-15 22:29:06,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:29:06,375 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-15 22:29:06,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 21.272727272727273) internal successors, (1404), 66 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-15 22:29:06,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:29:06,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:29:06,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:29:06,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-15 22:29:06,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-15 22:29:06,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-15 22:29:06,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:29:07,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:29:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:29:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:29:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-15 22:29:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-15 22:29:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-15 22:29:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-15 22:29:07,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-15 22:29:08,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-15 22:29:08,163 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-15 22:29:08,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:29:08,163 INFO L85 PathProgramCache]: Analyzing trace with hash 604757464, now seen corresponding path program 5 times [2022-11-15 22:29:08,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:29:08,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562067006] [2022-11-15 22:29:08,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:29:08,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:29:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:29:13,182 INFO L134 CoverageAnalysis]: Checked inductivity of 20212 backedges. 124 proven. 20088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:29:13,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-15 22:29:13,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562067006] [2022-11-15 22:29:13,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562067006] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-15 22:29:13,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988131209] [2022-11-15 22:29:13,184 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-15 22:29:13,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-15 22:29:13,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-15 22:29:13,185 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-15 22:29:13,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-15 22:30:12,433 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-11-15 22:30:12,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-15 22:30:12,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-15 22:30:12,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-15 22:30:13,734 INFO L134 CoverageAnalysis]: Checked inductivity of 20212 backedges. 124 proven. 20088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:30:13,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-15 22:30:17,097 INFO L134 CoverageAnalysis]: Checked inductivity of 20212 backedges. 124 proven. 20088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:30:17,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988131209] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-15 22:30:17,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-15 22:30:17,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-15 22:30:17,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620332810] [2022-11-15 22:30:17,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-15 22:30:17,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-15 22:30:17,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-15 22:30:17,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-15 22:30:17,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-15 22:30:17,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:30:17,105 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-15 22:30:17,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 21.138461538461538) internal successors, (2748), 130 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-15 22:30:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:30:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:30:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:30:17,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-15 22:30:17,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-15 22:30:17,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-15 22:30:17,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-15 22:30:17,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:30:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:30:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:30:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:30:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-15 22:30:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-15 22:30:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-15 22:30:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-15 22:30:23,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-11-15 22:30:23,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-15 22:30:23,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-15 22:30:23,269 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-15 22:30:23,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:30:23,270 INFO L85 PathProgramCache]: Analyzing trace with hash 548332664, now seen corresponding path program 6 times [2022-11-15 22:30:23,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:30:23,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618865362] [2022-11-15 22:30:23,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:30:23,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:30:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:30:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 83412 backedges. 252 proven. 83160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:30:46,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-15 22:30:46,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618865362] [2022-11-15 22:30:46,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618865362] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-15 22:30:46,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981776890] [2022-11-15 22:30:46,225 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-15 22:30:46,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-15 22:30:46,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-15 22:30:46,226 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-15 22:30:46,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process Received shutdown request... [2022-11-15 22:43:30,604 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-15 22:43:30,617 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-15 22:43:30,617 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-15 22:43:31,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-11-15 22:43:31,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-11-15 22:43:31,818 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process [2022-11-15 22:43:31,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 137 [2022-11-15 22:43:31,836 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-15 22:43:31,836 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-15 22:43:31,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129] total 129 [2022-11-15 22:43:31,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067780735] [2022-11-15 22:43:31,837 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-15 22:43:31,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2022-11-15 22:43:31,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-15 22:43:31,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2022-11-15 22:43:31,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4224, Invalid=12288, Unknown=0, NotChecked=0, Total=16512 [2022-11-15 22:43:31,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:43:31,842 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-15 22:43:31,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 129 states, 129 states have (on average 21.007751937984494) internal successors, (2710), 129 states have internal predecessors, (2710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-15 22:43:31,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:43:31,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-15 22:43:31,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-15 22:43:31,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-15 22:43:31,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-15 22:43:31,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-15 22:43:31,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-15 22:43:31,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-11-15 22:43:31,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:43:31,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-15 22:43:31,844 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-11-15 22:43:31,845 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-15 22:43:31,849 INFO L444 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1] [2022-11-15 22:43:31,849 INFO L307 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork0 was TIMEOUT (1/3) [2022-11-15 22:43:31,850 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-15 22:43:31,850 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-15 22:43:31,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:43:31 BasicIcfg [2022-11-15 22:43:31,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-15 22:43:31,852 INFO L158 Benchmark]: Toolchain (without parser) took 875998.00ms. Allocated memory was 199.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 166.0MB in the beginning and 991.4MB in the end (delta: -825.4MB). Peak memory consumption was 208.5MB. Max. memory is 8.0GB. [2022-11-15 22:43:31,852 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 199.2MB. Free memory is still 157.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-11-15 22:43:31,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.53ms. Allocated memory is still 199.2MB. Free memory was 165.8MB in the beginning and 151.7MB in the end (delta: 14.1MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. [2022-11-15 22:43:31,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.49ms. Allocated memory is still 199.2MB. Free memory was 151.7MB in the beginning and 148.8MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-11-15 22:43:31,853 INFO L158 Benchmark]: Boogie Preprocessor took 36.05ms. Allocated memory is still 199.2MB. Free memory was 148.8MB in the beginning and 146.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-11-15 22:43:31,853 INFO L158 Benchmark]: RCFGBuilder took 410.95ms. Allocated memory is still 199.2MB. Free memory was 146.9MB in the beginning and 129.4MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-11-15 22:43:31,853 INFO L158 Benchmark]: TraceAbstraction took 875081.76ms. Allocated memory was 199.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 128.6MB in the beginning and 991.4MB in the end (delta: -862.8MB). Peak memory consumption was 172.2MB. Max. memory is 8.0GB. [2022-11-15 22:43:31,854 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 199.2MB. Free memory is still 157.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 408.53ms. Allocated memory is still 199.2MB. Free memory was 165.8MB in the beginning and 151.7MB in the end (delta: 14.1MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.49ms. Allocated memory is still 199.2MB. Free memory was 151.7MB in the beginning and 148.8MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.05ms. Allocated memory is still 199.2MB. Free memory was 148.8MB in the beginning and 146.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 410.95ms. Allocated memory is still 199.2MB. Free memory was 146.9MB in the beginning and 129.4MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 875081.76ms. Allocated memory was 199.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 128.6MB in the beginning and 991.4MB in the end (delta: -862.8MB). Peak memory consumption was 172.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 10105, independent: 9701, independent conditional: 5859, independent unconditional: 3842, dependent: 404, dependent conditional: 396, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9709, independent: 9701, independent conditional: 5859, independent unconditional: 3842, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9709, independent: 9701, independent conditional: 5859, independent unconditional: 3842, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9709, independent: 9701, independent conditional: 0, independent unconditional: 9701, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9709, independent: 9701, independent conditional: 0, independent unconditional: 9701, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9709, independent: 9701, independent conditional: 0, independent unconditional: 9701, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3744, independent: 3736, independent conditional: 0, independent unconditional: 3736, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3744, independent: 3734, independent conditional: 0, independent unconditional: 3734, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 9709, independent: 5965, independent conditional: 0, independent unconditional: 5965, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3744, unknown conditional: 0, unknown unconditional: 3744] , Statistics on independence cache: Total cache size (in pairs): 3744, Positive cache size: 3736, Positive conditional cache size: 0, Positive unconditional cache size: 3736, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 396 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 85, Number of trivial persistent sets: 40, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3850, independent: 3842, independent conditional: 0, independent unconditional: 3842, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 10105, independent: 9701, independent conditional: 5859, independent unconditional: 3842, dependent: 404, dependent conditional: 396, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9709, independent: 9701, independent conditional: 5859, independent unconditional: 3842, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9709, independent: 9701, independent conditional: 5859, independent unconditional: 3842, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9709, independent: 9701, independent conditional: 0, independent unconditional: 9701, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9709, independent: 9701, independent conditional: 0, independent unconditional: 9701, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9709, independent: 9701, independent conditional: 0, independent unconditional: 9701, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3744, independent: 3736, independent conditional: 0, independent unconditional: 3736, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3744, independent: 3734, independent conditional: 0, independent unconditional: 3734, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 9709, independent: 5965, independent conditional: 0, independent unconditional: 5965, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3744, unknown conditional: 0, unknown unconditional: 3744] , Statistics on independence cache: Total cache size (in pairs): 3744, Positive cache size: 3736, Positive conditional cache size: 0, Positive unconditional cache size: 3736, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 396 - TimeoutResultAtElement [Line: 941]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 272 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 875.0s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 8.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 368, 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: 0.2s SsaConstructionTime, 61.1s SatisfiabilityAnalysisTime, 37.8s InterpolantComputationTime, 8344 NumberOfCodeBlocks, 8344 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 11039 ConstructedInterpolants, 0 QuantifiedInterpolants, 31975 SizeOfPredicates, 114 NumberOfNonLiveVariables, 5234 ConjunctsInSsa, 124 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 936/162018 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown