/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-LoopLockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-figure3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-14 11:14:49,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-14 11:14:49,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-14 11:14:49,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-14 11:14:49,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-14 11:14:49,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-14 11:14:49,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-14 11:14:49,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-14 11:14:49,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-14 11:14:49,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-14 11:14:49,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-14 11:14:49,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-14 11:14:49,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-14 11:14:49,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-14 11:14:49,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-14 11:14:49,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-14 11:14:49,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-14 11:14:49,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-14 11:14:49,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-14 11:14:49,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-14 11:14:49,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-14 11:14:49,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-14 11:14:49,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-14 11:14:49,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-14 11:14:49,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-14 11:14:49,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-14 11:14:49,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-14 11:14:49,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-14 11:14:49,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-14 11:14:49,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-14 11:14:49,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-14 11:14:49,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-14 11:14:49,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-14 11:14:49,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-14 11:14:49,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-14 11:14:49,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-14 11:14:49,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-14 11:14:49,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-14 11:14:49,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-14 11:14:49,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-14 11:14:49,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-14 11:14:49,645 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-LoopLockstep.epf [2021-11-14 11:14:49,667 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-14 11:14:49,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-14 11:14:49,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-14 11:14:49,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-14 11:14:49,667 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-14 11:14:49,668 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-14 11:14:49,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-14 11:14:49,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-14 11:14:49,668 INFO L138 SettingsManager]: * Use SBE=true [2021-11-14 11:14:49,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-14 11:14:49,668 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-14 11:14:49,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-14 11:14:49,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-14 11:14:49,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-14 11:14:49,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-14 11:14:49,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-14 11:14:49,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-14 11:14:49,669 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-14 11:14:49,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-14 11:14:49,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-14 11:14:49,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-14 11:14:49,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-14 11:14:49,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-14 11:14:49,669 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-14 11:14:49,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-14 11:14:49,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 11:14:49,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-14 11:14:49,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-14 11:14:49,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-14 11:14:49,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-14 11:14:49,670 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-14 11:14:49,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-14 11:14:49,675 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-14 11:14:49,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-14 11:14:49,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-14 11:14:49,675 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-14 11:14:49,675 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-14 11:14:49,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-14 11:14:49,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-14 11:14:49,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-14 11:14:49,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-14 11:14:49,868 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-14 11:14:49,869 INFO L275 PluginConnector]: CDTParser initialized [2021-11-14 11:14:49,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2021-11-14 11:14:49,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22f540cc7/2ac37418f75e4446a1dcf47de71da8eb/FLAG4dd6a3203 [2021-11-14 11:14:50,255 INFO L306 CDTParser]: Found 1 translation units. [2021-11-14 11:14:50,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2021-11-14 11:14:50,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22f540cc7/2ac37418f75e4446a1dcf47de71da8eb/FLAG4dd6a3203 [2021-11-14 11:14:50,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22f540cc7/2ac37418f75e4446a1dcf47de71da8eb [2021-11-14 11:14:50,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-14 11:14:50,279 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-14 11:14:50,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-14 11:14:50,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-14 11:14:50,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-14 11:14:50,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f0aa3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50, skipping insertion in model container [2021-11-14 11:14:50,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-14 11:14:50,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-14 11:14:50,432 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c[2121,2134] [2021-11-14 11:14:50,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 11:14:50,438 INFO L203 MainTranslator]: Completed pre-run [2021-11-14 11:14:50,449 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c[2121,2134] [2021-11-14 11:14:50,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 11:14:50,458 INFO L208 MainTranslator]: Completed translation [2021-11-14 11:14:50,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50 WrapperNode [2021-11-14 11:14:50,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-14 11:14:50,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-14 11:14:50,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-14 11:14:50,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-14 11:14:50,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-14 11:14:50,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-14 11:14:50,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-14 11:14:50,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-14 11:14:50,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-14 11:14:50,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-14 11:14:50,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-14 11:14:50,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-14 11:14:50,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50" (1/1) ... [2021-11-14 11:14:50,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 11:14:50,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:14:50,515 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) [2021-11-14 11:14:50,524 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 [2021-11-14 11:14:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-14 11:14:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-14 11:14:50,549 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-14 11:14:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-14 11:14:50,549 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-14 11:14:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-14 11:14:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-14 11:14:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-14 11:14:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-14 11:14:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-14 11:14:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-14 11:14:50,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-14 11:14:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-14 11:14:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-14 11:14:50,551 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-14 11:14:50,858 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-14 11:14:50,858 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-14 11:14:50,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 11:14:50 BoogieIcfgContainer [2021-11-14 11:14:50,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-14 11:14:50,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-14 11:14:50,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-14 11:14:50,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-14 11:14:50,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 11:14:50" (1/3) ... [2021-11-14 11:14:50,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489c0c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 11:14:50, skipping insertion in model container [2021-11-14 11:14:50,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:14:50" (2/3) ... [2021-11-14 11:14:50,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489c0c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 11:14:50, skipping insertion in model container [2021-11-14 11:14:50,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 11:14:50" (3/3) ... [2021-11-14 11:14:50,873 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-figure3.wvr.c [2021-11-14 11:14:50,877 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-14 11:14:50,877 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-14 11:14:50,877 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-14 11:14:50,877 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-14 11:14:50,913 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,913 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,913 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,913 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,914 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,914 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,915 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,915 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,916 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,916 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,916 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,916 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,916 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,919 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,920 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,920 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,920 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,921 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,921 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,921 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,921 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,921 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,921 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,921 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,921 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,931 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,931 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,931 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,934 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,934 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,935 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,935 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:14:50,938 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-14 11:14:50,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 11:14:50,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:14:50,976 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) [2021-11-14 11:14:50,976 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 [2021-11-14 11:14:51,007 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 11:14:51,014 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, 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 [2021-11-14 11:14:51,015 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-14 11:14:51,109 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 11:14:51,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:14:51,112 INFO L85 PathProgramCache]: Analyzing trace with hash 807583382, now seen corresponding path program 1 times [2021-11-14 11:14:51,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:14:51,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532254530] [2021-11-14 11:14:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:14:51,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:14:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:14:51,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:14:51,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:14:51,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532254530] [2021-11-14 11:14:51,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532254530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 11:14:51,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 11:14:51,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 11:14:51,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365605458] [2021-11-14 11:14:51,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 11:14:51,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 11:14:51,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:14:51,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 11:14:51,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 11:14:51,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:51,284 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:14:51,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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) [2021-11-14 11:14:51,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:51,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:51,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-14 11:14:51,333 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 11:14:51,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:14:51,335 INFO L85 PathProgramCache]: Analyzing trace with hash -2089392672, now seen corresponding path program 1 times [2021-11-14 11:14:51,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:14:51,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789661456] [2021-11-14 11:14:51,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:14:51,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:14:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:14:51,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:14:51,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:14:51,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789661456] [2021-11-14 11:14:51,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789661456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 11:14:51,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 11:14:51,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-14 11:14:51,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714711283] [2021-11-14 11:14:51,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 11:14:51,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 11:14:51,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:14:51,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 11:14:51,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-14 11:14:51,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:51,534 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:14:51,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2021-11-14 11:14:51,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:51,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:14:51,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-14 11:14:51,646 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 11:14:51,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:14:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash -347827538, now seen corresponding path program 1 times [2021-11-14 11:14:51,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:14:51,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121496311] [2021-11-14 11:14:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:14:51,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:14:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:14:51,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:14:51,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:14:51,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121496311] [2021-11-14 11:14:51,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121496311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 11:14:51,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 11:14:51,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 11:14:51,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251629553] [2021-11-14 11:14:51,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 11:14:51,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 11:14:51,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:14:51,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 11:14:51,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-14 11:14:51,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:51,761 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:14:51,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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) [2021-11-14 11:14:51,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:51,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:14:51,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:51,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:51,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:14:51,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:14:51,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-14 11:14:51,816 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 11:14:51,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:14:51,816 INFO L85 PathProgramCache]: Analyzing trace with hash 658794218, now seen corresponding path program 1 times [2021-11-14 11:14:51,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:14:51,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094826324] [2021-11-14 11:14:51,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:14:51,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:14:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:14:51,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:14:51,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:14:51,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094826324] [2021-11-14 11:14:51,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094826324] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:14:51,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203885339] [2021-11-14 11:14:51,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:14:51,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:14:51,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:14:51,946 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) [2021-11-14 11:14:51,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-14 11:14:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:14:52,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-14 11:14:52,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:14:52,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 11:14:52,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:14:52,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 11:14:52,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203885339] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:14:52,394 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:14:52,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 9 [2021-11-14 11:14:52,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114621410] [2021-11-14 11:14:52,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:14:52,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-14 11:14:52,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:14:52,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-14 11:14:52,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-14 11:14:52,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:52,395 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:14:52,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 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) [2021-11-14 11:14:52,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:52,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:14:52,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:14:52,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:52,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:52,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:14:52,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:14:52,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 11:14:52,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-14 11:14:52,687 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 [2021-11-14 11:14:52,688 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 11:14:52,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:14:52,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1042261988, now seen corresponding path program 2 times [2021-11-14 11:14:52,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:14:52,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280342847] [2021-11-14 11:14:52,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:14:52,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:14:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:14:52,846 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:14:52,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:14:52,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280342847] [2021-11-14 11:14:52,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280342847] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:14:52,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818265672] [2021-11-14 11:14:52,847 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 11:14:52,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:14:52,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:14:52,848 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) [2021-11-14 11:14:52,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-14 11:14:52,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 11:14:52,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 11:14:52,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-14 11:14:52,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:14:53,119 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:14:53,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:14:53,346 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:14:53,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818265672] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:14:53,347 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:14:53,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2021-11-14 11:14:53,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778858525] [2021-11-14 11:14:53,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:14:53,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-14 11:14:53,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:14:53,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-14 11:14:53,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2021-11-14 11:14:53,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:53,349 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:14:53,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.75) internal successors, (115), 20 states have internal predecessors, (115), 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) [2021-11-14 11:14:53,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:53,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:14:53,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:14:53,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 11:14:53,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:54,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:54,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:14:54,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:14:54,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:14:54,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-14 11:14:54,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-14 11:14:54,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:14:54,980 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 11:14:54,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:14:54,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1687708266, now seen corresponding path program 3 times [2021-11-14 11:14:54,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:14:54,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849100833] [2021-11-14 11:14:54,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:14:54,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:14:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:14:55,306 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 5 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:14:55,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:14:55,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849100833] [2021-11-14 11:14:55,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849100833] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:14:55,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839960830] [2021-11-14 11:14:55,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-14 11:14:55,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:14:55,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:14:55,308 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) [2021-11-14 11:14:55,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-14 11:14:55,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-14 11:14:55,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 11:14:55,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-14 11:14:55,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:14:56,023 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 5 proven. 67 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 11:14:56,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:14:56,779 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 6 proven. 66 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 11:14:56,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839960830] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:14:56,780 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:14:56,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 18] total 43 [2021-11-14 11:14:56,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912260677] [2021-11-14 11:14:56,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:14:56,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-14 11:14:56,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:14:56,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-14 11:14:56,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1623, Unknown=0, NotChecked=0, Total=1806 [2021-11-14 11:14:56,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:56,782 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:14:56,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.023255813953488) internal successors, (173), 43 states have internal predecessors, (173), 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) [2021-11-14 11:14:56,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:14:56,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:14:56,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:14:56,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:14:56,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-11-14 11:14:56,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:15:03,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:15:03,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:15:03,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:15:03,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:15:03,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-14 11:15:03,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-11-14 11:15:03,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-14 11:15:03,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:15:03,573 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 11:15:03,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:15:03,573 INFO L85 PathProgramCache]: Analyzing trace with hash 616603684, now seen corresponding path program 4 times [2021-11-14 11:15:03,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:15:03,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749573022] [2021-11-14 11:15:03,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:15:03,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:15:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:15:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-11-14 11:15:03,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:15:03,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749573022] [2021-11-14 11:15:03,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749573022] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:15:03,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384546258] [2021-11-14 11:15:03,929 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-14 11:15:03,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:15:03,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:15:03,930 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) [2021-11-14 11:15:03,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-14 11:15:04,004 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-14 11:15:04,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 11:15:04,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-14 11:15:04,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:15:05,033 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:15:05,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:15:06,639 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:15:06,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384546258] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:15:06,640 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:15:06,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 33, 33] total 73 [2021-11-14 11:15:06,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843525510] [2021-11-14 11:15:06,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:15:06,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-11-14 11:15:06,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:15:06,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-11-14 11:15:06,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=4842, Unknown=0, NotChecked=0, Total=5256 [2021-11-14 11:15:06,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:15:06,643 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:15:06,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 3.4383561643835616) internal successors, (251), 73 states have internal predecessors, (251), 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) [2021-11-14 11:15:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:15:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:15:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:15:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:15:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-11-14 11:15:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-11-14 11:15:06,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:15:27,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:15:27,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:15:27,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:15:27,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:15:27,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-14 11:15:27,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-11-14 11:15:27,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-14 11:15:27,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-14 11:15:28,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:15:28,087 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 11:15:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:15:28,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1829697016, now seen corresponding path program 5 times [2021-11-14 11:15:28,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:15:28,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547789751] [2021-11-14 11:15:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:15:28,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:15:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:15:28,370 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 199 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-11-14 11:15:28,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:15:28,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547789751] [2021-11-14 11:15:28,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547789751] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:15:28,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035708380] [2021-11-14 11:15:28,373 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-14 11:15:28,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:15:28,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:15:28,385 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) [2021-11-14 11:15:28,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-14 11:16:14,741 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-11-14 11:16:14,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 11:16:14,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-14 11:16:14,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:16:15,170 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2021-11-14 11:16:15,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:16:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2021-11-14 11:16:15,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035708380] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:16:15,545 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:16:15,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 12 [2021-11-14 11:16:15,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537708114] [2021-11-14 11:16:15,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:16:15,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-14 11:16:15,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:16:15,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-14 11:16:15,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-14 11:16:15,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:16:15,547 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:16:15,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.25) internal successors, (159), 12 states have internal predecessors, (159), 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) [2021-11-14 11:16:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:16:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:16:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:16:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:16:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-14 11:16:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-11-14 11:16:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-11-14 11:16:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:16:15,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:16:15,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:16:15,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:16:15,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:16:15,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-14 11:16:15,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-11-14 11:16:15,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-14 11:16:15,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 11:16:15,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-14 11:16:15,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:16:15,888 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 11:16:15,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:16:15,888 INFO L85 PathProgramCache]: Analyzing trace with hash -585465062, now seen corresponding path program 6 times [2021-11-14 11:16:15,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:16:15,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8688376] [2021-11-14 11:16:15,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:16:15,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:16:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:16:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-11-14 11:16:16,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:16:16,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8688376] [2021-11-14 11:16:16,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8688376] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:16:16,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698174853] [2021-11-14 11:16:16,237 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-14 11:16:16,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:16:16,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:16:16,238 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) [2021-11-14 11:16:16,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-14 11:16:16,863 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-11-14 11:16:16,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 11:16:16,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 86 conjunts are in the unsatisfiable core [2021-11-14 11:16:16,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:16:18,294 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 0 proven. 521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:16:18,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:16:20,923 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 0 proven. 521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:16:20,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698174853] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:16:20,923 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:16:20,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 45, 45] total 96 [2021-11-14 11:16:20,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925600999] [2021-11-14 11:16:20,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:16:20,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-11-14 11:16:20,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:16:20,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-11-14 11:16:20,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=738, Invalid=8382, Unknown=0, NotChecked=0, Total=9120 [2021-11-14 11:16:20,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:16:20,927 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:16:20,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 3.2708333333333335) internal successors, (314), 96 states have internal predecessors, (314), 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) [2021-11-14 11:16:20,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:16:20,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:16:20,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:16:20,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:16:20,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-14 11:16:20,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-11-14 11:16:20,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-11-14 11:16:20,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-14 11:16:20,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:16:47,289 WARN L227 SmtUtils]: Spent 7.49s on a formula simplification. DAG size of input: 89 DAG size of output: 88 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:17:04,222 WARN L227 SmtUtils]: Spent 7.92s on a formula simplification. DAG size of input: 98 DAG size of output: 92 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:17:25,360 WARN L227 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 140 DAG size of output: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:17:47,349 WARN L227 SmtUtils]: Spent 16.18s on a formula simplification. DAG size of input: 179 DAG size of output: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:18:02,641 WARN L227 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 136 DAG size of output: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:18:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:18:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:18:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:18:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:18:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-14 11:18:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-14 11:18:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-14 11:18:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 11:18:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2021-11-14 11:18:04,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-14 11:18:05,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:18:05,151 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 11:18:05,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:18:05,152 INFO L85 PathProgramCache]: Analyzing trace with hash -31198896, now seen corresponding path program 7 times [2021-11-14 11:18:05,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:18:05,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635837059] [2021-11-14 11:18:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:18:05,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:18:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:18:05,647 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 519 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-11-14 11:18:05,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:18:05,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635837059] [2021-11-14 11:18:05,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635837059] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:18:05,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021898976] [2021-11-14 11:18:05,647 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-14 11:18:05,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:18:05,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:18:05,648 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 11:18:05,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-14 11:18:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:18:05,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 110 conjunts are in the unsatisfiable core [2021-11-14 11:18:05,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:18:07,805 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 872 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:18:07,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:18:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 872 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:18:12,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021898976] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:18:12,071 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:18:12,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 57, 57] total 122 [2021-11-14 11:18:12,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186090150] [2021-11-14 11:18:12,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:18:12,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2021-11-14 11:18:12,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:18:12,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2021-11-14 11:18:12,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1070, Invalid=13692, Unknown=0, NotChecked=0, Total=14762 [2021-11-14 11:18:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:18:12,075 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:18:12,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 122 states, 122 states have (on average 3.098360655737705) internal successors, (378), 122 states have internal predecessors, (378), 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) [2021-11-14 11:18:12,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:18:12,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:18:12,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:18:12,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:18:12,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-11-14 11:18:12,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-14 11:18:12,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-11-14 11:18:12,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-14 11:18:12,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2021-11-14 11:18:12,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:18:35,967 WARN L227 SmtUtils]: Spent 9.53s on a formula simplification that was a NOOP. DAG size: 103 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:18:49,761 WARN L227 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 100 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:18:51,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:19:20,499 WARN L227 SmtUtils]: Spent 16.78s on a formula simplification. DAG size of input: 107 DAG size of output: 106 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:19:38,037 WARN L227 SmtUtils]: Spent 8.82s on a formula simplification that was a NOOP. DAG size: 104 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:19:40,660 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:20:16,483 WARN L227 SmtUtils]: Spent 19.35s on a formula simplification. DAG size of input: 116 DAG size of output: 110 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:21:01,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:21:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:21:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:21:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:21:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-14 11:21:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-14 11:21:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-14 11:21:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 11:21:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2021-11-14 11:21:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-11-14 11:21:01,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-14 11:21:01,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-14 11:21:01,363 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-14 11:21:01,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:21:01,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1940937746, now seen corresponding path program 8 times [2021-11-14 11:21:01,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:21:01,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599456767] [2021-11-14 11:21:01,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:21:01,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:21:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:21:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1571 backedges. 0 proven. 1571 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:21:04,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:21:04,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599456767] [2021-11-14 11:21:04,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599456767] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:21:04,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569066692] [2021-11-14 11:21:04,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 11:21:04,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:21:04,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:21:04,010 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 11:21:04,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-14 11:21:04,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 11:21:04,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 11:21:04,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 142 conjunts are in the unsatisfiable core [2021-11-14 11:21:04,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:21:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1571 backedges. 0 proven. 1570 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 11:21:05,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:21:15,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1571 backedges. 0 proven. 1570 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 11:21:15,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569066692] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:21:15,761 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:21:15,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 73, 73] total 154 [2021-11-14 11:21:15,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002890853] [2021-11-14 11:21:15,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:21:15,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 154 states [2021-11-14 11:21:15,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:21:15,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2021-11-14 11:21:15,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1545, Invalid=22017, Unknown=0, NotChecked=0, Total=23562 [2021-11-14 11:21:15,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:21:15,766 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:21:15,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 154 states, 154 states have (on average 3.0324675324675323) internal successors, (467), 154 states have internal predecessors, (467), 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) [2021-11-14 11:21:15,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:21:15,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:21:15,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:21:15,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 11:21:15,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-11-14 11:21:15,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-14 11:21:15,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-11-14 11:21:15,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-14 11:21:15,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2021-11-14 11:21:15,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2021-11-14 11:21:15,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:21:43,003 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (mod (+ c_thread1Thread1of1ForFork0_~i~0 11) 4294967296)) (.cse0 (mod (+ 14 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse8 (mod (+ 6 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse10 (mod (+ 16 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse6 (mod (+ c_thread1Thread1of1ForFork0_~i~0 17) 4294967296)) (.cse7 (mod (+ 15 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse3 (mod (+ 7 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse9 (mod (+ c_thread1Thread1of1ForFork0_~i~0 10) 4294967296)) (.cse4 (mod (+ c_thread1Thread1of1ForFork0_~i~0 8) 4294967296)) (.cse2 (mod (+ 9 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (.cse5 (mod (+ c_thread1Thread1of1ForFork0_~i~0 12) 4294967296)) (.cse11 (mod (+ c_thread1Thread1of1ForFork0_~i~0 13) 4294967296))) (and (<= (div (+ (* (mod (+ |c_thread2Thread1of1ForFork1_#t~post2#1| 15) 4294967296) (- 1)) .cse0) (- 4294967296)) 0) (<= (div (+ (* (mod (+ |c_thread2Thread1of1ForFork1_#t~post2#1| 12) 4294967296) (- 1)) .cse1) (- 4294967296)) 0) (<= (div (+ (* (mod (+ |c_thread2Thread1of1ForFork1_#t~post2#1| 10) 4294967296) (- 1)) .cse2) (- 4294967296)) 0) (<= (div (+ .cse3 (* (mod (+ |c_thread2Thread1of1ForFork1_#t~post2#1| 8) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ .cse4 (* (mod (+ 8 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (* (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 11) 4294967296) (- 1)) .cse1) (- 4294967296)) 0) (<= (div (+ .cse5 (* (mod (+ |c_thread2Thread1of1ForFork1_#t~post2#1| 13) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (* (mod (+ 17 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1)) .cse6) (- 4294967296)) 0) (<= (div (+ .cse0 (* (mod (+ 14 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ .cse7 (* (mod (+ |c_thread2Thread1of1ForFork1_#t~post2#1| 16) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ .cse8 (* (mod (+ 6 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ .cse9 (* (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 10) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ .cse10 (* (mod (+ |c_thread2Thread1of1ForFork1_#t~post2#1| 17) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ .cse8 (* (mod (+ 7 |c_thread2Thread1of1ForFork1_#t~post2#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ .cse10 (* (mod (+ 16 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ .cse6 (- 17)) (- 4294967296)) 0) (<= (div (+ .cse7 (* (mod (+ 15 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (* (mod (+ 7 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1)) .cse3) (- 4294967296)) 0) (<= (div (+ .cse9 (* (mod (+ |c_thread2Thread1of1ForFork1_#t~post2#1| 11) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (* (mod (+ |c_thread2Thread1of1ForFork1_#t~post2#1| 9) 4294967296) (- 1)) .cse4) (- 4294967296)) 0) (<= (div (+ (* (mod (+ 9 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1)) .cse2) (- 4294967296)) 0) (<= (div (+ .cse11 (* (mod (+ 13 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ .cse5 (* (mod (+ 12 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (* (mod (+ |c_thread2Thread1of1ForFork1_#t~post2#1| 14) 4294967296) (- 1)) .cse11) (- 4294967296)) 0))) is different from false [2021-11-14 11:24:17,193 WARN L227 SmtUtils]: Spent 29.98s on a formula simplification that was a NOOP. DAG size: 115 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:25:58,630 WARN L227 SmtUtils]: Spent 25.84s on a formula simplification that was a NOOP. DAG size: 106 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:26:00,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:26:02,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:26:05,693 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod |c_thread2Thread1of1ForFork1_~i~1#1| 4294967296) (mod c_~N~0 4294967296)) (<= (div (+ (mod (+ c_thread1Thread1of1ForFork0_~i~0 8) 4294967296) (* (mod (+ 8 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (* (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 11) 4294967296) (- 1)) (mod (+ c_thread1Thread1of1ForFork0_~i~0 11) 4294967296)) (- 4294967296)) 0) (<= (div (+ (mod (+ 14 c_thread1Thread1of1ForFork0_~i~0) 4294967296) (* (mod (+ 14 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (mod (+ 6 c_thread1Thread1of1ForFork0_~i~0) 4294967296) (* (mod (+ 6 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (mod (+ c_thread1Thread1of1ForFork0_~i~0 10) 4294967296) (* (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 10) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (mod (+ 16 c_thread1Thread1of1ForFork0_~i~0) 4294967296) (* (mod (+ 16 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (mod (+ 15 c_thread1Thread1of1ForFork0_~i~0) 4294967296) (* (mod (+ 15 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (* (mod (+ 7 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1)) (mod (+ 7 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (- 4294967296)) 0) (<= (div (+ (* (mod (+ 9 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1)) (mod (+ 9 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (- 4294967296)) 0) (<= (div (+ (mod (+ c_thread1Thread1of1ForFork0_~i~0 13) 4294967296) (* (mod (+ 13 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0) (<= (div (+ (mod (+ c_thread1Thread1of1ForFork0_~i~0 12) 4294967296) (* (mod (+ 12 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (- 4294967296)) 0)) is different from false [2021-11-14 11:26:07,698 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:26:10,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:26:12,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:26:14,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:26:17,521 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:26:19,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:26:21,151 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:26:23,166 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (* (mod (+ 6 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (.cse4 (* (mod (+ 16 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (.cse8 (* (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 10) 4294967296) (- 1))) (.cse1 (* (mod (+ 8 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (.cse6 (* (mod (+ 15 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (.cse9 (* (mod (+ 7 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (.cse2 (* (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 11) 4294967296) (- 1))) (.cse5 (* (mod (+ 14 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (.cse3 (* (mod (+ 9 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (.cse0 (* (mod (+ 13 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1))) (.cse10 (* (mod (+ 12 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) (- 1)))) (and (<= (div (+ (mod (+ |c_thread1Thread1of1ForFork0_#t~post1| 13) 4294967296) .cse0) (- 4294967296)) 0) (<= (div (+ (mod (+ c_thread1Thread1of1ForFork0_~i~0 8) 4294967296) .cse1) (- 4294967296)) 0) (<= (div (+ .cse2 (mod (+ c_thread1Thread1of1ForFork0_~i~0 11) 4294967296)) (- 4294967296)) 0) (<= (div (+ (mod (+ |c_thread1Thread1of1ForFork0_#t~post1| 9) 4294967296) .cse3) (- 4294967296)) 0) (<= (div (+ (mod (+ |c_thread1Thread1of1ForFork0_#t~post1| 16) 4294967296) .cse4) (- 4294967296)) 0) (<= (div (+ (mod (+ 14 c_thread1Thread1of1ForFork0_~i~0) 4294967296) .cse5) (- 4294967296)) 0) (<= (div (+ .cse6 (mod (+ |c_thread1Thread1of1ForFork0_#t~post1| 15) 4294967296)) (- 4294967296)) 0) (<= (div (+ (mod (+ 6 c_thread1Thread1of1ForFork0_~i~0) 4294967296) .cse7) (- 4294967296)) 0) (<= (div (+ (mod (+ c_thread1Thread1of1ForFork0_~i~0 10) 4294967296) .cse8) (- 4294967296)) 0) (<= (div (+ (mod (+ |c_thread1Thread1of1ForFork0_#t~post1| 6) 4294967296) .cse7) (- 4294967296)) 0) (<= (div (+ (mod (+ 16 c_thread1Thread1of1ForFork0_~i~0) 4294967296) .cse4) (- 4294967296)) 0) (<= (div (+ (mod (+ |c_thread1Thread1of1ForFork0_#t~post1| 10) 4294967296) .cse8) (- 4294967296)) 0) (<= (div (+ (mod (+ |c_thread1Thread1of1ForFork0_#t~post1| 8) 4294967296) .cse1) (- 4294967296)) 0) (<= (div (+ (mod (+ 15 c_thread1Thread1of1ForFork0_~i~0) 4294967296) .cse6) (- 4294967296)) 0) (<= (div (+ .cse9 (mod (+ 7 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (- 4294967296)) 0) (<= (div (+ .cse9 (mod (+ 7 |c_thread1Thread1of1ForFork0_#t~post1|) 4294967296)) (- 4294967296)) 0) (<= (div (+ .cse10 (mod (+ |c_thread1Thread1of1ForFork0_#t~post1| 12) 4294967296)) (- 4294967296)) 0) (<= (div (+ .cse2 (mod (+ |c_thread1Thread1of1ForFork0_#t~post1| 11) 4294967296)) (- 4294967296)) 0) (<= (div (+ .cse5 (mod (+ |c_thread1Thread1of1ForFork0_#t~post1| 14) 4294967296)) (- 4294967296)) 0) (<= (div (+ .cse3 (mod (+ 9 c_thread1Thread1of1ForFork0_~i~0) 4294967296)) (- 4294967296)) 0) (<= (div (+ (mod (+ c_thread1Thread1of1ForFork0_~i~0 13) 4294967296) .cse0) (- 4294967296)) 0) (<= (div (+ (mod (+ c_thread1Thread1of1ForFork0_~i~0 12) 4294967296) .cse10) (- 4294967296)) 0))) is different from false [2021-11-14 11:28:39,464 WARN L227 SmtUtils]: Spent 30.05s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:28:41,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:28:44,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:28:46,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:28:48,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:28:50,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:28:53,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:28:55,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:28:57,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:28:59,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:29:02,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:29:04,961 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:29:08,467 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:29:09,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:29:11,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:29:14,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:29:17,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:29:19,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2021-11-14 11:29:20,902 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-11-14 11:29:20,902 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 [2021-11-14 11:29:20,902 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 [2021-11-14 11:29:21,650 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:29:21,926 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 [2021-11-14 11:29:21,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-14 11:29:22,114 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-14 11:29:22,121 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 137 [2021-11-14 11:29:22,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-14 11:29:22,122 WARN L594 AbstractCegarLoop]: Verification canceled: while executing Executor. [2021-11-14 11:29:22,124 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-14 11:29:22,124 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-11-14 11:29:22,124 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-11-14 11:29:22,128 INFO L732 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1] [2021-11-14 11:29:22,129 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-14 11:29:22,129 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-14 11:29:22,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 11:29:22 BasicIcfg [2021-11-14 11:29:22,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-14 11:29:22,132 INFO L158 Benchmark]: Toolchain (without parser) took 871853.04ms. Allocated memory was 350.2MB in the beginning and 507.5MB in the end (delta: 157.3MB). Free memory was 295.4MB in the beginning and 252.2MB in the end (delta: 43.2MB). Peak memory consumption was 202.9MB. Max. memory is 16.0GB. [2021-11-14 11:29:22,132 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 350.2MB. Free memory is still 311.6MB. There was no memory consumed. Max. memory is 16.0GB. [2021-11-14 11:29:22,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.38ms. Allocated memory is still 350.2MB. Free memory was 295.2MB in the beginning and 319.4MB in the end (delta: -24.2MB). Peak memory consumption was 10.9MB. Max. memory is 16.0GB. [2021-11-14 11:29:22,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.07ms. Allocated memory is still 350.2MB. Free memory was 319.4MB in the beginning and 317.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-14 11:29:22,132 INFO L158 Benchmark]: Boogie Preprocessor took 13.43ms. Allocated memory is still 350.2MB. Free memory was 317.3MB in the beginning and 316.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-14 11:29:22,133 INFO L158 Benchmark]: RCFGBuilder took 366.02ms. Allocated memory is still 350.2MB. Free memory was 316.2MB in the beginning and 302.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2021-11-14 11:29:22,133 INFO L158 Benchmark]: TraceAbstraction took 871271.26ms. Allocated memory was 350.2MB in the beginning and 507.5MB in the end (delta: 157.3MB). Free memory was 302.6MB in the beginning and 252.2MB in the end (delta: 50.4MB). Peak memory consumption was 210.8MB. Max. memory is 16.0GB. [2021-11-14 11:29:22,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 350.2MB. Free memory is still 311.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 177.38ms. Allocated memory is still 350.2MB. Free memory was 295.2MB in the beginning and 319.4MB in the end (delta: -24.2MB). Peak memory consumption was 10.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 20.07ms. Allocated memory is still 350.2MB. Free memory was 319.4MB in the beginning and 317.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 13.43ms. Allocated memory is still 350.2MB. Free memory was 317.3MB in the beginning and 316.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 366.02ms. Allocated memory is still 350.2MB. Free memory was 316.2MB in the beginning and 302.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 871271.26ms. Allocated memory was 350.2MB in the beginning and 507.5MB in the end (delta: 157.3MB). Free memory was 302.6MB in the beginning and 252.2MB in the end (delta: 50.4MB). Peak memory consumption was 210.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8578, positive: 5036, positive conditional: 4436, positive unconditional: 600, negative: 3542, negative conditional: 3539, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5063, positive: 5036, positive conditional: 4436, positive unconditional: 600, negative: 27, negative conditional: 24, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5063, positive: 5036, positive conditional: 4436, positive unconditional: 600, negative: 27, negative conditional: 24, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5195, positive: 5036, positive conditional: 4195, positive unconditional: 841, negative: 159, negative conditional: 132, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5195, positive: 5036, positive conditional: 2909, positive unconditional: 2127, negative: 159, negative conditional: 16, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5195, positive: 5036, positive conditional: 2909, positive unconditional: 2127, negative: 159, negative conditional: 16, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 549, positive: 544, positive conditional: 4, positive unconditional: 540, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 549, positive: 540, positive conditional: 0, positive unconditional: 540, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 82, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 46, negative conditional: 15, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5195, positive: 4492, positive conditional: 2905, positive unconditional: 1587, negative: 154, negative conditional: 14, negative unconditional: 140, unknown: 549, unknown conditional: 6, unknown unconditional: 543] , Statistics on independence cache: Total cache size (in pairs): 549, Positive cache size: 544, Positive conditional cache size: 4, Positive unconditional cache size: 540, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Eliminated conditions: 1402, Maximal queried relation: 6, Independence queries for same thread: 3515 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 55.96ms, Number of persistent set computation: 108, Number of trivial persistent sets: 76, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 603, positive: 600, positive conditional: 0, positive unconditional: 600, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8578, positive: 5036, positive conditional: 4436, positive unconditional: 600, negative: 3542, negative conditional: 3539, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5063, positive: 5036, positive conditional: 4436, positive unconditional: 600, negative: 27, negative conditional: 24, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5063, positive: 5036, positive conditional: 4436, positive unconditional: 600, negative: 27, negative conditional: 24, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5195, positive: 5036, positive conditional: 4195, positive unconditional: 841, negative: 159, negative conditional: 132, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5195, positive: 5036, positive conditional: 2909, positive unconditional: 2127, negative: 159, negative conditional: 16, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5195, positive: 5036, positive conditional: 2909, positive unconditional: 2127, negative: 159, negative conditional: 16, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 549, positive: 544, positive conditional: 4, positive unconditional: 540, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 549, positive: 540, positive conditional: 0, positive unconditional: 540, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 82, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 46, negative conditional: 15, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5195, positive: 4492, positive conditional: 2905, positive unconditional: 1587, negative: 154, negative conditional: 14, negative unconditional: 140, unknown: 549, unknown conditional: 6, unknown unconditional: 543] , Statistics on independence cache: Total cache size (in pairs): 549, Positive cache size: 544, Positive conditional cache size: 4, Positive unconditional cache size: 540, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Eliminated conditions: 1402, Maximal queried relation: 6, Independence queries for same thread: 3515 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 102 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 871.2s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 789.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 704, 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: 0.1s SsaConstructionTime, 48.1s SatisfiabilityAnalysisTime, 31.8s InterpolantComputationTime, 2467 NumberOfCodeBlocks, 2467 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 3580 ConstructedInterpolants, 0 QuantifiedInterpolants, 29478 SizeOfPredicates, 234 NumberOfNonLiveVariables, 2374 ConjunctsInSsa, 507 ConjunctsInUnsatCore, 27 InterpolantComputations, 3 PerfectInterpolantSequences, 1525/11332 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