/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 15:18:58,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 15:18:58,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 15:18:58,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 15:18:58,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 15:18:58,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 15:18:58,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 15:18:58,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 15:18:58,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 15:18:58,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 15:18:58,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 15:18:58,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 15:18:58,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 15:18:58,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 15:18:58,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 15:18:58,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 15:18:58,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 15:18:58,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 15:18:58,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 15:18:58,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 15:18:58,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 15:18:58,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 15:18:58,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 15:18:58,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 15:18:58,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-01 15:18:58,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-01 15:18:58,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-01 15:18:58,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-01 15:18:58,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-01 15:18:58,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-01 15:18:58,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-01 15:18:58,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-01 15:18:58,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-01 15:18:58,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 15:18:58,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 15:18:58,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 15:18:58,618 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-FA-NoLbe.epf [2022-03-01 15:18:58,632 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 15:18:58,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 15:18:58,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 15:18:58,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 15:18:58,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 15:18:58,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 15:18:58,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 15:18:58,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 15:18:58,633 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 15:18:58,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 15:18:58,634 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 15:18:58,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 15:18:58,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 15:18:58,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 15:18:58,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 15:18:58,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 15:18:58,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 15:18:58,634 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 15:18:58,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 15:18:58,634 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 15:18:58,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 15:18:58,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 15:18:58,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 15:18:58,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 15:18:58,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 15:18:58,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:18:58,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 15:18:58,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 15:18:58,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 15:18:58,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 15:18:58,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 15:18:58,635 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 15:18:58,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 15:18:58,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 15:18:58,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 15:18:58,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 15:18:58,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 15:18:58,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 15:18:58,816 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 15:18:58,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2022-03-01 15:18:58,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2bfdbc1/d8fb00a07430444f95e8a7adcfde54c6/FLAG91f04b20a [2022-03-01 15:18:59,289 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 15:18:59,290 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2022-03-01 15:18:59,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2bfdbc1/d8fb00a07430444f95e8a7adcfde54c6/FLAG91f04b20a [2022-03-01 15:18:59,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2bfdbc1/d8fb00a07430444f95e8a7adcfde54c6 [2022-03-01 15:18:59,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 15:18:59,327 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 15:18:59,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 15:18:59,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 15:18:59,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 15:18:59,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63c515fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59, skipping insertion in model container [2022-03-01 15:18:59,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 15:18:59,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 15:18:59,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c[2625,2638] [2022-03-01 15:18:59,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:18:59,513 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 15:18:59,529 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c[2625,2638] [2022-03-01 15:18:59,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:18:59,539 INFO L208 MainTranslator]: Completed translation [2022-03-01 15:18:59,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59 WrapperNode [2022-03-01 15:18:59,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 15:18:59,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 15:18:59,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 15:18:59,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 15:18:59,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,564 INFO L137 Inliner]: procedures = 22, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 125 [2022-03-01 15:18:59,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 15:18:59,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 15:18:59,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 15:18:59,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 15:18:59,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 15:18:59,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 15:18:59,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 15:18:59,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 15:18:59,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59" (1/1) ... [2022-03-01 15:18:59,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:18:59,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:18:59,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-01 15:18:59,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-01 15:18:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 15:18:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 15:18:59,643 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 15:18:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 15:18:59,643 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 15:18:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 15:18:59,643 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 15:18:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-01 15:18:59,643 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-01 15:18:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 15:18:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-03-01 15:18:59,644 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-03-01 15:18:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-03-01 15:18:59,644 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-03-01 15:18:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 15:18:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 15:18:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 15:18:59,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 15:18:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 15:18:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 15:18:59,645 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 15:18:59,701 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 15:18:59,702 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 15:18:59,864 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 15:18:59,870 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 15:18:59,871 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-03-01 15:18:59,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:18:59 BoogieIcfgContainer [2022-03-01 15:18:59,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 15:18:59,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 15:18:59,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 15:18:59,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 15:18:59,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 03:18:59" (1/3) ... [2022-03-01 15:18:59,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50503c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:18:59, skipping insertion in model container [2022-03-01 15:18:59,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:18:59" (2/3) ... [2022-03-01 15:18:59,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50503c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:18:59, skipping insertion in model container [2022-03-01 15:18:59,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:18:59" (3/3) ... [2022-03-01 15:18:59,878 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2022-03-01 15:18:59,882 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 15:18:59,882 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 15:18:59,882 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 15:18:59,882 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 15:18:59,925 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,925 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,925 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,925 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,928 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,928 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,928 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,929 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,930 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,930 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,930 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,930 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,931 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,931 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,932 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,932 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,933 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,933 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,933 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,933 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,938 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,938 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,939 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,939 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,940 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,940 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,941 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,941 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,941 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,941 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:18:59,950 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-03-01 15:18:59,979 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 15:18:59,983 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 15:18:59,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-01 15:18:59,993 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 174 places, 169 transitions, 386 flow [2022-03-01 15:19:04,541 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:19:04,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:19:05,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-01 15:19:05,681 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:19:05,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:19:05,682 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 15:19:05,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:19:05,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1305752384, now seen corresponding path program 1 times [2022-03-01 15:19:05,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:19:05,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090351076] [2022-03-01 15:19:05,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:19:05,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:19:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:19:06,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:19:06,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:19:06,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090351076] [2022-03-01 15:19:06,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090351076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:19:06,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:19:06,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 15:19:06,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25974747] [2022-03-01 15:19:06,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:19:06,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 15:19:06,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:19:06,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 15:19:06,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 15:19:06,446 INFO L87 Difference]: Start difference. First operand has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 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) Second operand has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:19:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:19:08,344 INFO L93 Difference]: Finished difference Result 97705 states and 624075 transitions. [2022-03-01 15:19:08,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 15:19:08,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-03-01 15:19:08,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:19:09,648 INFO L225 Difference]: With dead ends: 97705 [2022-03-01 15:19:09,648 INFO L226 Difference]: Without dead ends: 97703 [2022-03-01 15:19:09,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 15:19:09,652 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:19:09,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:19:09,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97703 states. [2022-03-01 15:19:14,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97703 to 97703. [2022-03-01 15:19:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97703 states, 97702 states have (on average 6.387515096927391) internal successors, (624073), 97702 states have internal predecessors, (624073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:19:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97703 states to 97703 states and 624073 transitions. [2022-03-01 15:19:16,471 INFO L78 Accepts]: Start accepts. Automaton has 97703 states and 624073 transitions. Word has length 124 [2022-03-01 15:19:16,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:19:16,472 INFO L470 AbstractCegarLoop]: Abstraction has 97703 states and 624073 transitions. [2022-03-01 15:19:16,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:19:16,472 INFO L276 IsEmpty]: Start isEmpty. Operand 97703 states and 624073 transitions. [2022-03-01 15:19:17,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-01 15:19:17,091 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:19:17,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:19:17,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 15:19:17,092 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 15:19:17,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:19:17,095 INFO L85 PathProgramCache]: Analyzing trace with hash 8260414, now seen corresponding path program 1 times [2022-03-01 15:19:17,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:19:17,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809227862] [2022-03-01 15:19:17,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:19:17,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:19:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:19:17,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:19:17,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:19:17,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809227862] [2022-03-01 15:19:17,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809227862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:19:17,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:19:17,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 15:19:17,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660940773] [2022-03-01 15:19:17,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:19:17,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:19:17,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:19:17,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:19:17,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:19:17,750 INFO L87 Difference]: Start difference. First operand 97703 states and 624073 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:19:21,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:19:21,557 INFO L93 Difference]: Finished difference Result 195354 states and 1248094 transitions. [2022-03-01 15:19:21,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:19:21,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-03-01 15:19:21,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:19:24,509 INFO L225 Difference]: With dead ends: 195354 [2022-03-01 15:19:24,510 INFO L226 Difference]: Without dead ends: 191343 [2022-03-01 15:19:24,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:19:24,511 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 161 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:19:24,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 510 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:19:24,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191343 states. [2022-03-01 15:19:32,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191343 to 122358. [2022-03-01 15:19:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122358 states, 122357 states have (on average 6.363297563686589) internal successors, (778594), 122357 states have internal predecessors, (778594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:19:34,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122358 states to 122358 states and 778594 transitions. [2022-03-01 15:19:34,519 INFO L78 Accepts]: Start accepts. Automaton has 122358 states and 778594 transitions. Word has length 124 [2022-03-01 15:19:34,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:19:34,520 INFO L470 AbstractCegarLoop]: Abstraction has 122358 states and 778594 transitions. [2022-03-01 15:19:34,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:19:34,520 INFO L276 IsEmpty]: Start isEmpty. Operand 122358 states and 778594 transitions. [2022-03-01 15:19:35,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-01 15:19:35,331 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:19:35,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:19:35,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 15:19:35,332 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 15:19:35,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:19:35,333 INFO L85 PathProgramCache]: Analyzing trace with hash -988465056, now seen corresponding path program 1 times [2022-03-01 15:19:35,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:19:35,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45958020] [2022-03-01 15:19:35,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:19:35,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:19:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:19:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:19:35,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:19:35,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45958020] [2022-03-01 15:19:35,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45958020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:19:35,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:19:35,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 15:19:35,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619390432] [2022-03-01 15:19:35,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:19:35,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 15:19:35,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:19:35,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 15:19:35,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-01 15:19:35,792 INFO L87 Difference]: Start difference. First operand 122358 states and 778594 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:19:39,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:19:39,298 INFO L93 Difference]: Finished difference Result 191343 states and 1204582 transitions. [2022-03-01 15:19:39,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 15:19:39,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-03-01 15:19:39,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:19:43,145 INFO L225 Difference]: With dead ends: 191343 [2022-03-01 15:19:43,163 INFO L226 Difference]: Without dead ends: 187218 [2022-03-01 15:19:43,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:19:43,164 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 213 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:19:43,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 382 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:19:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187218 states. [2022-03-01 15:19:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187218 to 141552. [2022-03-01 15:19:51,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141552 states, 141551 states have (on average 6.3017004471886455) internal successors, (892012), 141551 states have internal predecessors, (892012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:19:52,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141552 states to 141552 states and 892012 transitions. [2022-03-01 15:19:52,959 INFO L78 Accepts]: Start accepts. Automaton has 141552 states and 892012 transitions. Word has length 126 [2022-03-01 15:19:52,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:19:52,964 INFO L470 AbstractCegarLoop]: Abstraction has 141552 states and 892012 transitions. [2022-03-01 15:19:52,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:19:52,964 INFO L276 IsEmpty]: Start isEmpty. Operand 141552 states and 892012 transitions. [2022-03-01 15:19:53,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-01 15:19:53,895 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:19:53,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:19:53,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 15:19:53,896 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 15:19:53,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:19:53,897 INFO L85 PathProgramCache]: Analyzing trace with hash 673227334, now seen corresponding path program 1 times [2022-03-01 15:19:53,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:19:53,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598496177] [2022-03-01 15:19:53,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:19:53,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:19:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:19:54,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:19:54,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:19:54,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598496177] [2022-03-01 15:19:54,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598496177] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:19:54,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965066391] [2022-03-01 15:19:54,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:19:54,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:19:54,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:19:54,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 15:19:54,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-01 15:19:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:19:54,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-01 15:19:54,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:19:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:19:54,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:19:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:19:55,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965066391] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:19:55,485 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:19:55,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-03-01 15:19:55,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590485712] [2022-03-01 15:19:55,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:19:55,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-01 15:19:55,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:19:55,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-01 15:19:55,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-03-01 15:19:55,490 INFO L87 Difference]: Start difference. First operand 141552 states and 892012 transitions. Second operand has 14 states, 14 states have (on average 17.0) internal successors, (238), 14 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:20:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:20:03,057 INFO L93 Difference]: Finished difference Result 345512 states and 2189951 transitions. [2022-03-01 15:20:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 15:20:03,062 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.0) internal successors, (238), 14 states have internal predecessors, (238), 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) Word has length 126 [2022-03-01 15:20:03,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:20:09,819 INFO L225 Difference]: With dead ends: 345512 [2022-03-01 15:20:09,819 INFO L226 Difference]: Without dead ends: 345512 [2022-03-01 15:20:09,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 244 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-03-01 15:20:09,820 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 1384 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:20:09,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1384 Valid, 988 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:20:10,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345512 states. [2022-03-01 15:20:23,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345512 to 177331. [2022-03-01 15:20:23,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177331 states, 177330 states have (on average 6.343748942649298) internal successors, (1124937), 177330 states have internal predecessors, (1124937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:20:26,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177331 states to 177331 states and 1124937 transitions. [2022-03-01 15:20:26,506 INFO L78 Accepts]: Start accepts. Automaton has 177331 states and 1124937 transitions. Word has length 126 [2022-03-01 15:20:26,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:20:26,507 INFO L470 AbstractCegarLoop]: Abstraction has 177331 states and 1124937 transitions. [2022-03-01 15:20:26,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.0) internal successors, (238), 14 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:20:26,508 INFO L276 IsEmpty]: Start isEmpty. Operand 177331 states and 1124937 transitions. [2022-03-01 15:20:27,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-01 15:20:27,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:20:27,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:20:27,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-01 15:20:28,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:20:28,083 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 15:20:28,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:20:28,084 INFO L85 PathProgramCache]: Analyzing trace with hash 846870858, now seen corresponding path program 2 times [2022-03-01 15:20:28,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:20:28,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199476474] [2022-03-01 15:20:28,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:20:28,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:20:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:20:28,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:20:28,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:20:28,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199476474] [2022-03-01 15:20:28,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199476474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:20:28,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:20:28,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 15:20:28,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990108278] [2022-03-01 15:20:28,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:20:28,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:20:28,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:20:28,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:20:28,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:20:28,593 INFO L87 Difference]: Start difference. First operand 177331 states and 1124937 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:20:33,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:20:33,430 INFO L93 Difference]: Finished difference Result 222994 states and 1414296 transitions. [2022-03-01 15:20:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:20:33,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-03-01 15:20:33,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:20:37,299 INFO L225 Difference]: With dead ends: 222994 [2022-03-01 15:20:37,301 INFO L226 Difference]: Without dead ends: 222994 [2022-03-01 15:20:37,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 15:20:37,302 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 226 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:20:37,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 499 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:20:38,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222994 states.