/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 01:22:11,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 01:22:11,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 01:22:11,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 01:22:11,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 01:22:11,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 01:22:11,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 01:22:11,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 01:22:11,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 01:22:11,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 01:22:11,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 01:22:11,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 01:22:11,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 01:22:11,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 01:22:11,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 01:22:11,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 01:22:11,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 01:22:11,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 01:22:11,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 01:22:11,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 01:22:11,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 01:22:11,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 01:22:11,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 01:22:11,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 01:22:11,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 01:22:11,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-19 01:22:11,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-19 01:22:11,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-19 01:22:11,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-19 01:22:11,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-19 01:22:11,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-19 01:22:11,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-19 01:22:11,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-19 01:22:11,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 01:22:11,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 01:22:11,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 01:22:11,235 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2022-02-19 01:22:11,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 01:22:11,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 01:22:11,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 01:22:11,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 01:22:11,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 01:22:11,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 01:22:11,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 01:22:11,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 01:22:11,252 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 01:22:11,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 01:22:11,252 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 01:22:11,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 01:22:11,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 01:22:11,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 01:22:11,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 01:22:11,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 01:22:11,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 01:22:11,253 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 01:22:11,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 01:22:11,253 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 01:22:11,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 01:22:11,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 01:22:11,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 01:22:11,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 01:22:11,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 01:22:11,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 01:22:11,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 01:22:11,254 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 01:22:11,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 01:22:11,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 01:22:11,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 01:22:11,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 01:22:11,255 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 01:22:11,255 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 01:22:11,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 01:22:11,255 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-19 01:22:11,255 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-19 01:22:11,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 01:22:11,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 01:22:11,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 01:22:11,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 01:22:11,491 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-19 01:22:11,491 INFO L275 PluginConnector]: CDTParser initialized [2022-02-19 01:22:11,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2022-02-19 01:22:11,558 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab4c5055/1d87a8dd765a41198f1876a742a6644c/FLAG0494f4903 [2022-02-19 01:22:11,861 INFO L306 CDTParser]: Found 1 translation units. [2022-02-19 01:22:11,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2022-02-19 01:22:11,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab4c5055/1d87a8dd765a41198f1876a742a6644c/FLAG0494f4903 [2022-02-19 01:22:12,284 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab4c5055/1d87a8dd765a41198f1876a742a6644c [2022-02-19 01:22:12,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 01:22:12,287 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-19 01:22:12,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-19 01:22:12,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-19 01:22:12,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-19 01:22:12,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e8906a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12, skipping insertion in model container [2022-02-19 01:22:12,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-19 01:22:12,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-19 01:22:12,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c[2826,2839] [2022-02-19 01:22:12,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 01:22:12,468 INFO L203 MainTranslator]: Completed pre-run [2022-02-19 01:22:12,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c[2826,2839] [2022-02-19 01:22:12,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 01:22:12,497 INFO L208 MainTranslator]: Completed translation [2022-02-19 01:22:12,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12 WrapperNode [2022-02-19 01:22:12,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-19 01:22:12,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 01:22:12,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 01:22:12,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 01:22:12,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,527 INFO L137 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 125 [2022-02-19 01:22:12,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 01:22:12,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 01:22:12,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 01:22:12,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 01:22:12,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 01:22:12,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 01:22:12,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 01:22:12,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 01:22:12,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12" (1/1) ... [2022-02-19 01:22:12,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 01:22:12,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 01:22:12,581 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) [2022-02-19 01:22:12,582 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 [2022-02-19 01:22:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-19 01:22:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-19 01:22:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-19 01:22:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-19 01:22:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 01:22:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 01:22:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 01:22:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 01:22:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 01:22:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 01:22:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-19 01:22:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-19 01:22:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-19 01:22:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-02-19 01:22:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-02-19 01:22:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-02-19 01:22:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-02-19 01:22:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 01:22:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 01:22:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-19 01:22:12,616 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 01:22:12,683 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 01:22:12,684 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 01:22:12,918 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 01:22:12,925 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 01:22:12,925 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-02-19 01:22:12,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 01:22:12 BoogieIcfgContainer [2022-02-19 01:22:12,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 01:22:12,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 01:22:12,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 01:22:12,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 01:22:12,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 01:22:12" (1/3) ... [2022-02-19 01:22:12,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d07e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 01:22:12, skipping insertion in model container [2022-02-19 01:22:12,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 01:22:12" (2/3) ... [2022-02-19 01:22:12,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d07e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 01:22:12, skipping insertion in model container [2022-02-19 01:22:12,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 01:22:12" (3/3) ... [2022-02-19 01:22:12,933 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2022-02-19 01:22:12,937 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 01:22:12,937 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 01:22:12,937 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 01:22:12,937 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 01:22:12,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,977 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,977 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,978 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,978 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,978 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,979 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,979 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,979 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,980 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,980 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,980 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,980 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,981 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,981 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,981 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,981 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,986 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,986 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,991 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,991 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,995 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:12,995 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 01:22:13,000 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-02-19 01:22:13,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 01:22:13,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 01:22:13,035 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) [2022-02-19 01:22:13,036 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 [2022-02-19 01:22:13,061 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-19 01:22:13,068 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-19 01:22:13,068 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-02-19 01:22:13,385 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 01:22:13,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 01:22:13,392 INFO L85 PathProgramCache]: Analyzing trace with hash 796616537, now seen corresponding path program 1 times [2022-02-19 01:22:13,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 01:22:13,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85381524] [2022-02-19 01:22:13,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:13,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 01:22:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 01:22:13,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 01:22:13,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85381524] [2022-02-19 01:22:13,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85381524] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 01:22:13,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 01:22:13,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-19 01:22:13,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531595598] [2022-02-19 01:22:13,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 01:22:13,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-19 01:22:13,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 01:22:13,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-19 01:22:13,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-19 01:22:13,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:13,661 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 01:22:13,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 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) [2022-02-19 01:22:13,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:13,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 01:22:13,721 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 01:22:13,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 01:22:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1596691145, now seen corresponding path program 1 times [2022-02-19 01:22:13,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 01:22:13,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233733246] [2022-02-19 01:22:13,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:13,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 01:22:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:14,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 01:22:14,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 01:22:14,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233733246] [2022-02-19 01:22:14,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233733246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 01:22:14,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 01:22:14,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-19 01:22:14,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174154896] [2022-02-19 01:22:14,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 01:22:14,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-19 01:22:14,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 01:22:14,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-19 01:22:14,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-19 01:22:14,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:14,118 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 01:22:14,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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) [2022-02-19 01:22:14,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:14,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:14,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:14,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:14,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-19 01:22:14,322 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 01:22:14,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 01:22:14,323 INFO L85 PathProgramCache]: Analyzing trace with hash -512139787, now seen corresponding path program 1 times [2022-02-19 01:22:14,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 01:22:14,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807372556] [2022-02-19 01:22:14,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:14,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 01:22:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 01:22:14,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 01:22:14,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807372556] [2022-02-19 01:22:14,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807372556] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 01:22:14,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 01:22:14,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-19 01:22:14,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415624760] [2022-02-19 01:22:14,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 01:22:14,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-19 01:22:14,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 01:22:14,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-19 01:22:14,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-19 01:22:14,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:14,746 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 01:22:14,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2022-02-19 01:22:14,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:14,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:14,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-19 01:22:14,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-19 01:22:14,919 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 01:22:14,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 01:22:14,919 INFO L85 PathProgramCache]: Analyzing trace with hash -111421895, now seen corresponding path program 1 times [2022-02-19 01:22:14,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 01:22:14,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820446862] [2022-02-19 01:22:14,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:14,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 01:22:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:15,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 01:22:15,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 01:22:15,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820446862] [2022-02-19 01:22:15,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820446862] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 01:22:15,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105560947] [2022-02-19 01:22:15,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:15,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 01:22:15,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 01:22:15,074 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) [2022-02-19 01:22:15,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 01:22:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:15,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-19 01:22:15,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 01:22:15,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 01:22:15,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 01:22:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 01:22:15,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105560947] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 01:22:15,782 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 01:22:15,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-02-19 01:22:15,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953992316] [2022-02-19 01:22:15,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 01:22:15,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-19 01:22:15,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 01:22:15,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-19 01:22:15,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-02-19 01:22:15,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:15,784 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 01:22:15,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 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) [2022-02-19 01:22:15,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:15,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:15,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-19 01:22:15,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:16,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-19 01:22:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-19 01:22:16,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 01:22:16,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-02-19 01:22:16,212 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 01:22:16,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 01:22:16,213 INFO L85 PathProgramCache]: Analyzing trace with hash 902467191, now seen corresponding path program 1 times [2022-02-19 01:22:16,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 01:22:16,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284760090] [2022-02-19 01:22:16,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:16,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 01:22:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:16,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-19 01:22:16,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 01:22:16,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284760090] [2022-02-19 01:22:16,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284760090] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 01:22:16,424 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 01:22:16,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-19 01:22:16,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908548488] [2022-02-19 01:22:16,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 01:22:16,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-19 01:22:16,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 01:22:16,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-19 01:22:16,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-19 01:22:16,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:16,426 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 01:22:16,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2022-02-19 01:22:16,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:16,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:16,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-19 01:22:16,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-19 01:22:16,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-19 01:22:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-19 01:22:16,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:16,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-19 01:22:16,559 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 01:22:16,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 01:22:16,559 INFO L85 PathProgramCache]: Analyzing trace with hash 712189365, now seen corresponding path program 1 times [2022-02-19 01:22:16,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 01:22:16,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647969049] [2022-02-19 01:22:16,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:16,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 01:22:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:16,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-19 01:22:16,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 01:22:16,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647969049] [2022-02-19 01:22:16,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647969049] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 01:22:16,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135903281] [2022-02-19 01:22:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:16,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 01:22:16,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 01:22:16,726 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) [2022-02-19 01:22:16,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 01:22:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:16,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-19 01:22:16,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 01:22:17,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-19 01:22:17,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-19 01:22:17,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135903281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 01:22:17,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-19 01:22:17,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2022-02-19 01:22:17,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395507154] [2022-02-19 01:22:17,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 01:22:17,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-19 01:22:17,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 01:22:17,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-19 01:22:17,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-19 01:22:17,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:17,194 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 01:22:17,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2022-02-19 01:22:17,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:17,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:17,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-19 01:22:17,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-19 01:22:17,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:17,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-19 01:22:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-19 01:22:17,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:17,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-19 01:22:17,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-19 01:22:17,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 01:22:17,580 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 01:22:17,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 01:22:17,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1701437191, now seen corresponding path program 1 times [2022-02-19 01:22:17,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 01:22:17,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089026772] [2022-02-19 01:22:17,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:17,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 01:22:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:17,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-19 01:22:17,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 01:22:17,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089026772] [2022-02-19 01:22:17,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089026772] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 01:22:17,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562000979] [2022-02-19 01:22:17,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:17,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 01:22:17,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 01:22:17,734 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) [2022-02-19 01:22:17,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 01:22:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:17,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-19 01:22:17,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 01:22:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-19 01:22:18,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 01:22:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-19 01:22:18,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562000979] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 01:22:18,404 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 01:22:18,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2022-02-19 01:22:18,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316329989] [2022-02-19 01:22:18,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 01:22:18,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-19 01:22:18,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 01:22:18,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-19 01:22:18,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-19 01:22:18,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:18,405 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 01:22:18,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.916666666666668) internal successors, (227), 12 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 01:22:18,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:18,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:18,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-19 01:22:18,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-19 01:22:18,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:18,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-19 01:22:18,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:18,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-19 01:22:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-19 01:22:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-19 01:22:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 01:22:18,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 01:22:19,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 01:22:19,021 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 01:22:19,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 01:22:19,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1968955465, now seen corresponding path program 1 times [2022-02-19 01:22:19,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 01:22:19,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854888891] [2022-02-19 01:22:19,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:19,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 01:22:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-19 01:22:19,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 01:22:19,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854888891] [2022-02-19 01:22:19,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854888891] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 01:22:19,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 01:22:19,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-19 01:22:19,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72661740] [2022-02-19 01:22:19,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 01:22:19,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-19 01:22:19,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 01:22:19,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-19 01:22:19,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-19 01:22:19,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:19,182 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 01:22:19,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 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) [2022-02-19 01:22:19,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:19,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:19,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-19 01:22:19,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-19 01:22:19,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:19,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-19 01:22:19,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 01:22:19,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:19,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 01:22:19,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:19,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-19 01:22:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-19 01:22:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-19 01:22:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 01:22:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-19 01:22:19,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-19 01:22:19,289 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 01:22:19,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 01:22:19,289 INFO L85 PathProgramCache]: Analyzing trace with hash -61915787, now seen corresponding path program 1 times [2022-02-19 01:22:19,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 01:22:19,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722734735] [2022-02-19 01:22:19,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:19,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 01:22:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-19 01:22:19,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 01:22:19,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722734735] [2022-02-19 01:22:19,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722734735] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 01:22:19,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126091749] [2022-02-19 01:22:19,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 01:22:19,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 01:22:19,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 01:22:19,558 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) [2022-02-19 01:22:19,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 01:22:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 01:22:19,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-19 01:22:19,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-02-19 01:35:56,210 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 01:35:56,210 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 [2022-02-19 01:35:56,210 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 [2022-02-19 01:35:57,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2022-02-19 01:35:57,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-19 01:35:57,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown