/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/parallel-misc-2-unrolled.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 14:25:37,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 14:25:37,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 14:25:37,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-18 14:25:37,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-18 14:25:37,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-18 14:25:37,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-18 14:25:37,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-18 14:25:37,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-18 14:25:37,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-18 14:25:37,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-18 14:25:37,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-18 14:25:37,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-18 14:25:37,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-18 14:25:37,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-18 14:25:37,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-18 14:25:37,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-18 14:25:37,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 14:25:37,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 14:25:37,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 14:25:37,655 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 [2022-02-18 14:25:37,679 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 14:25:37,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 14:25:37,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 14:25:37,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 14:25:37,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 14:25:37,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 14:25:37,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 14:25:37,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 14:25:37,681 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 14:25:37,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 14:25:37,682 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 14:25:37,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 14:25:37,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 14:25:37,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 14:25:37,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 14:25:37,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 14:25:37,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 14:25:37,682 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 14:25:37,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 14:25:37,683 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 14:25:37,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 14:25:37,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 14:25:37,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 14:25:37,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 14:25:37,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 14:25:37,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:25:37,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 14:25:37,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 14:25:37,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 14:25:37,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 14:25:37,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 14:25:37,684 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 14:25:37,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 14:25:37,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 14:25:37,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 14:25:37,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 14:25:37,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 14:25:37,861 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 14:25:37,861 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 14:25:37,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2022-02-18 14:25:37,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85ca58161/c1ca84267ee449bbbbe14159ed9cae83/FLAG4101b2504 [2022-02-18 14:25:38,253 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 14:25:38,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2022-02-18 14:25:38,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85ca58161/c1ca84267ee449bbbbe14159ed9cae83/FLAG4101b2504 [2022-02-18 14:25:38,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85ca58161/c1ca84267ee449bbbbe14159ed9cae83 [2022-02-18 14:25:38,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 14:25:38,268 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 14:25:38,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 14:25:38,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 14:25:38,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 14:25:38,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1869f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38, skipping insertion in model container [2022-02-18 14:25:38,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 14:25:38,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 14:25:38,446 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/parallel-misc-2-unrolled.wvr.c[2332,2345] [2022-02-18 14:25:38,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:25:38,461 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 14:25:38,503 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/parallel-misc-2-unrolled.wvr.c[2332,2345] [2022-02-18 14:25:38,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:25:38,525 INFO L208 MainTranslator]: Completed translation [2022-02-18 14:25:38,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38 WrapperNode [2022-02-18 14:25:38,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 14:25:38,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 14:25:38,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 14:25:38,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 14:25:38,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,567 INFO L137 Inliner]: procedures = 20, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2022-02-18 14:25:38,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 14:25:38,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 14:25:38,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 14:25:38,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 14:25:38,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 14:25:38,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 14:25:38,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 14:25:38,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 14:25:38,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38" (1/1) ... [2022-02-18 14:25:38,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:25:38,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:25:38,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-18 14:25:38,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-18 14:25:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 14:25:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-18 14:25:38,655 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-18 14:25:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-18 14:25:38,655 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-18 14:25:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 14:25:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 14:25:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 14:25:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-18 14:25:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-18 14:25:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 14:25:38,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 14:25:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-18 14:25:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 14:25:38,657 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 14:25:38,704 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 14:25:38,705 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 14:25:38,847 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 14:25:38,888 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 14:25:38,888 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-18 14:25:38,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:25:38 BoogieIcfgContainer [2022-02-18 14:25:38,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 14:25:38,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 14:25:38,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 14:25:38,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 14:25:38,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 02:25:38" (1/3) ... [2022-02-18 14:25:38,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@750807ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:25:38, skipping insertion in model container [2022-02-18 14:25:38,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:25:38" (2/3) ... [2022-02-18 14:25:38,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@750807ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:25:38, skipping insertion in model container [2022-02-18 14:25:38,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:25:38" (3/3) ... [2022-02-18 14:25:38,906 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2022-02-18 14:25:38,909 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 14:25:38,909 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 14:25:38,909 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 14:25:38,909 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 14:25:38,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,959 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,959 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,959 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,959 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,960 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,960 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,975 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:25:38,983 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-18 14:25:39,012 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 14:25:39,017 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 [2022-02-18 14:25:39,017 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-18 14:25:39,025 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 98 transitions, 212 flow [2022-02-18 14:25:39,092 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 731 states, 730 states have (on average 2.6767123287671235) internal successors, (1954), 730 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:39,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 731 states, 730 states have (on average 2.6767123287671235) internal successors, (1954), 730 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:39,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-18 14:25:39,113 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:39,114 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] [2022-02-18 14:25:39,114 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:25:39,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:39,118 INFO L85 PathProgramCache]: Analyzing trace with hash 183536465, now seen corresponding path program 1 times [2022-02-18 14:25:39,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:39,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932440518] [2022-02-18 14:25:39,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:39,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:25:39,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:39,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932440518] [2022-02-18 14:25:39,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932440518] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:39,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:25:39,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 14:25:39,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641913098] [2022-02-18 14:25:39,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:39,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 14:25:39,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:39,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 14:25:39,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 14:25:39,272 INFO L87 Difference]: Start difference. First operand has 731 states, 730 states have (on average 2.6767123287671235) internal successors, (1954), 730 states have internal predecessors, (1954), 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 31.5) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:39,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:39,320 INFO L93 Difference]: Finished difference Result 731 states and 1847 transitions. [2022-02-18 14:25:39,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 14:25:39,322 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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 63 [2022-02-18 14:25:39,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:39,339 INFO L225 Difference]: With dead ends: 731 [2022-02-18 14:25:39,340 INFO L226 Difference]: Without dead ends: 729 [2022-02-18 14:25:39,341 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 [2022-02-18 14:25:39,345 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:39,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:25:39,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-02-18 14:25:39,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2022-02-18 14:25:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 728 states have (on average 2.534340659340659) internal successors, (1845), 728 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:39,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1845 transitions. [2022-02-18 14:25:39,432 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1845 transitions. Word has length 63 [2022-02-18 14:25:39,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:39,433 INFO L470 AbstractCegarLoop]: Abstraction has 729 states and 1845 transitions. [2022-02-18 14:25:39,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1845 transitions. [2022-02-18 14:25:39,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-18 14:25:39,437 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:39,438 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] [2022-02-18 14:25:39,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 14:25:39,438 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:25:39,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:39,441 INFO L85 PathProgramCache]: Analyzing trace with hash 214556272, now seen corresponding path program 1 times [2022-02-18 14:25:39,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:39,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517465905] [2022-02-18 14:25:39,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:39,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:39,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:25:39,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:39,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517465905] [2022-02-18 14:25:39,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517465905] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:39,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:25:39,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 14:25:39,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768888495] [2022-02-18 14:25:39,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:39,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:25:39,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:39,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:25:39,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:25:39,709 INFO L87 Difference]: Start difference. First operand 729 states and 1845 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:39,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:39,802 INFO L93 Difference]: Finished difference Result 880 states and 2216 transitions. [2022-02-18 14:25:39,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:25:39,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2022-02-18 14:25:39,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:39,808 INFO L225 Difference]: With dead ends: 880 [2022-02-18 14:25:39,808 INFO L226 Difference]: Without dead ends: 829 [2022-02-18 14:25:39,809 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 [2022-02-18 14:25:39,810 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 70 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:39,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 295 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:25:39,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2022-02-18 14:25:39,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 784. [2022-02-18 14:25:39,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 2.523627075351213) internal successors, (1976), 783 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:39,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1976 transitions. [2022-02-18 14:25:39,829 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1976 transitions. Word has length 63 [2022-02-18 14:25:39,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:39,830 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1976 transitions. [2022-02-18 14:25:39,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:39,830 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1976 transitions. [2022-02-18 14:25:39,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-02-18 14:25:39,832 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:39,832 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] [2022-02-18 14:25:39,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 14:25:39,833 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:25:39,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:39,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1541730284, now seen corresponding path program 1 times [2022-02-18 14:25:39,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:39,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816903659] [2022-02-18 14:25:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:39,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:25:40,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:40,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816903659] [2022-02-18 14:25:40,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816903659] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:40,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:25:40,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:25:40,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584767468] [2022-02-18 14:25:40,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:40,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:25:40,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:40,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:25:40,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:25:40,025 INFO L87 Difference]: Start difference. First operand 784 states and 1976 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:40,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:40,171 INFO L93 Difference]: Finished difference Result 943 states and 2378 transitions. [2022-02-18 14:25:40,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:25:40,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 72 [2022-02-18 14:25:40,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:40,177 INFO L225 Difference]: With dead ends: 943 [2022-02-18 14:25:40,177 INFO L226 Difference]: Without dead ends: 910 [2022-02-18 14:25:40,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:25:40,182 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 136 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:40,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 236 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:25:40,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-02-18 14:25:40,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 751. [2022-02-18 14:25:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 750 states have (on average 2.534666666666667) internal successors, (1901), 750 states have internal predecessors, (1901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:40,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1901 transitions. [2022-02-18 14:25:40,198 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1901 transitions. Word has length 72 [2022-02-18 14:25:40,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:40,199 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 1901 transitions. [2022-02-18 14:25:40,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1901 transitions. [2022-02-18 14:25:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-02-18 14:25:40,202 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:40,202 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] [2022-02-18 14:25:40,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 14:25:40,202 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:25:40,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:40,203 INFO L85 PathProgramCache]: Analyzing trace with hash 648094501, now seen corresponding path program 1 times [2022-02-18 14:25:40,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:40,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972643063] [2022-02-18 14:25:40,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:40,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:25:40,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:40,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972643063] [2022-02-18 14:25:40,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972643063] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:25:40,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282555088] [2022-02-18 14:25:40,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:40,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:25:40,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:25:40,298 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) [2022-02-18 14:25:40,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-18 14:25:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:40,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-18 14:25:40,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:25:40,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:25:40,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:25:43,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:25:43,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282555088] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:25:43,638 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:25:43,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-02-18 14:25:43,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818867512] [2022-02-18 14:25:43,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:25:43,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-18 14:25:43,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:43,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-18 14:25:43,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-02-18 14:25:43,640 INFO L87 Difference]: Start difference. First operand 751 states and 1901 transitions. Second operand has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 13 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:43,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:43,869 INFO L93 Difference]: Finished difference Result 1276 states and 3218 transitions. [2022-02-18 14:25:43,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 14:25:43,869 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 13 states have internal predecessors, (111), 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 72 [2022-02-18 14:25:43,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:43,874 INFO L225 Difference]: With dead ends: 1276 [2022-02-18 14:25:43,874 INFO L226 Difference]: Without dead ends: 1276 [2022-02-18 14:25:43,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2022-02-18 14:25:43,875 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 398 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:43,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 351 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 132 Invalid, 0 Unknown, 80 Unchecked, 0.1s Time] [2022-02-18 14:25:43,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2022-02-18 14:25:43,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 814. [2022-02-18 14:25:43,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 2.5485854858548587) internal successors, (2072), 813 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:43,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 2072 transitions. [2022-02-18 14:25:43,896 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 2072 transitions. Word has length 72 [2022-02-18 14:25:43,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:43,897 INFO L470 AbstractCegarLoop]: Abstraction has 814 states and 2072 transitions. [2022-02-18 14:25:43,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 13 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:43,897 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 2072 transitions. [2022-02-18 14:25:43,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-02-18 14:25:43,899 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:43,899 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] [2022-02-18 14:25:43,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-18 14:25:44,116 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 [2022-02-18 14:25:44,117 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:25:44,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:44,117 INFO L85 PathProgramCache]: Analyzing trace with hash 143912557, now seen corresponding path program 2 times [2022-02-18 14:25:44,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:44,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919439830] [2022-02-18 14:25:44,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:44,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:44,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:25:44,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:44,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919439830] [2022-02-18 14:25:44,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919439830] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:44,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:25:44,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:25:44,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205783327] [2022-02-18 14:25:44,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:44,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:25:44,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:44,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:25:44,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:25:44,203 INFO L87 Difference]: Start difference. First operand 814 states and 2072 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:44,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:44,299 INFO L93 Difference]: Finished difference Result 925 states and 2333 transitions. [2022-02-18 14:25:44,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:25:44,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 72 [2022-02-18 14:25:44,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:44,303 INFO L225 Difference]: With dead ends: 925 [2022-02-18 14:25:44,303 INFO L226 Difference]: Without dead ends: 913 [2022-02-18 14:25:44,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:25:44,304 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 122 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:44,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 234 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:25:44,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-02-18 14:25:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 802. [2022-02-18 14:25:44,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 801 states have (on average 2.545568039950062) internal successors, (2039), 801 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:44,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 2039 transitions. [2022-02-18 14:25:44,339 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 2039 transitions. Word has length 72 [2022-02-18 14:25:44,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:44,339 INFO L470 AbstractCegarLoop]: Abstraction has 802 states and 2039 transitions. [2022-02-18 14:25:44,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:44,339 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 2039 transitions. [2022-02-18 14:25:44,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-02-18 14:25:44,341 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:44,341 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] [2022-02-18 14:25:44,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-18 14:25:44,341 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:25:44,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:44,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1081271512, now seen corresponding path program 2 times [2022-02-18 14:25:44,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:44,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221353680] [2022-02-18 14:25:44,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:44,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:44,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:25:44,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:44,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221353680] [2022-02-18 14:25:44,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221353680] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:44,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:25:44,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:25:44,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848916940] [2022-02-18 14:25:44,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:44,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:25:44,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:44,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:25:44,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:25:44,460 INFO L87 Difference]: Start difference. First operand 802 states and 2039 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:44,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:44,565 INFO L93 Difference]: Finished difference Result 952 states and 2426 transitions. [2022-02-18 14:25:44,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:25:44,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 72 [2022-02-18 14:25:44,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:44,570 INFO L225 Difference]: With dead ends: 952 [2022-02-18 14:25:44,570 INFO L226 Difference]: Without dead ends: 952 [2022-02-18 14:25:44,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:25:44,573 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 89 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:44,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 255 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:25:44,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-02-18 14:25:44,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 838. [2022-02-18 14:25:44,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 2.5543608124253288) internal successors, (2138), 837 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:44,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 2138 transitions. [2022-02-18 14:25:44,590 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 2138 transitions. Word has length 72 [2022-02-18 14:25:44,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:44,591 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 2138 transitions. [2022-02-18 14:25:44,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:44,591 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 2138 transitions. [2022-02-18 14:25:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-18 14:25:44,596 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:44,596 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] [2022-02-18 14:25:44,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-18 14:25:44,597 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:25:44,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:44,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1645795625, now seen corresponding path program 1 times [2022-02-18 14:25:44,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:44,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208863729] [2022-02-18 14:25:44,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:44,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:44,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:25:44,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:44,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208863729] [2022-02-18 14:25:44,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208863729] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:25:44,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188571318] [2022-02-18 14:25:44,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:44,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:25:44,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:25:44,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:25:44,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 14:25:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:44,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-18 14:25:44,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:25:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:25:45,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:25:45,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188571318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:45,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:25:45,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 12 [2022-02-18 14:25:45,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796949802] [2022-02-18 14:25:45,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:45,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:25:45,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:45,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:25:45,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-02-18 14:25:45,078 INFO L87 Difference]: Start difference. First operand 838 states and 2138 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:45,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:45,200 INFO L93 Difference]: Finished difference Result 1410 states and 3669 transitions. [2022-02-18 14:25:45,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 14:25:45,200 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 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 81 [2022-02-18 14:25:45,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:45,204 INFO L225 Difference]: With dead ends: 1410 [2022-02-18 14:25:45,204 INFO L226 Difference]: Without dead ends: 1071 [2022-02-18 14:25:45,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-02-18 14:25:45,205 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 79 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:45,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 521 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:25:45,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2022-02-18 14:25:45,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 971. [2022-02-18 14:25:45,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 970 states have (on average 2.602061855670103) internal successors, (2524), 970 states have internal predecessors, (2524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:45,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 2524 transitions. [2022-02-18 14:25:45,226 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 2524 transitions. Word has length 81 [2022-02-18 14:25:45,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:45,226 INFO L470 AbstractCegarLoop]: Abstraction has 971 states and 2524 transitions. [2022-02-18 14:25:45,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:45,226 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 2524 transitions. [2022-02-18 14:25:45,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-18 14:25:45,228 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:45,228 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] [2022-02-18 14:25:45,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-18 14:25:45,435 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,SelfDestructingSolverStorable6 [2022-02-18 14:25:45,436 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:25:45,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:45,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1649729215, now seen corresponding path program 2 times [2022-02-18 14:25:45,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:45,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314587770] [2022-02-18 14:25:45,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:45,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:45,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:25:45,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:45,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314587770] [2022-02-18 14:25:45,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314587770] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:25:45,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024177499] [2022-02-18 14:25:45,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:25:45,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:25:45,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:25:45,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:25:45,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-18 14:25:45,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:25:45,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:25:45,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-18 14:25:45,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:25:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:25:45,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:25:45,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024177499] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:25:45,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:25:45,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 12 [2022-02-18 14:25:45,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781469501] [2022-02-18 14:25:45,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:25:45,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:25:45,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:45,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:25:45,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-02-18 14:25:45,863 INFO L87 Difference]: Start difference. First operand 971 states and 2524 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:45,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:45,993 INFO L93 Difference]: Finished difference Result 1549 states and 4076 transitions. [2022-02-18 14:25:45,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 14:25:45,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 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 81 [2022-02-18 14:25:45,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:45,998 INFO L225 Difference]: With dead ends: 1549 [2022-02-18 14:25:45,998 INFO L226 Difference]: Without dead ends: 1390 [2022-02-18 14:25:45,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-02-18 14:25:45,999 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 78 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:45,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 726 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:25:46,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2022-02-18 14:25:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1347. [2022-02-18 14:25:46,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1346 states have (on average 2.639673105497771) internal successors, (3553), 1346 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 3553 transitions. [2022-02-18 14:25:46,021 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 3553 transitions. Word has length 81 [2022-02-18 14:25:46,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:46,021 INFO L470 AbstractCegarLoop]: Abstraction has 1347 states and 3553 transitions. [2022-02-18 14:25:46,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 3553 transitions. [2022-02-18 14:25:46,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-18 14:25:46,023 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:25:46,024 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] [2022-02-18 14:25:46,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-18 14:25:46,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:25:46,240 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:25:46,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:25:46,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1203121643, now seen corresponding path program 3 times [2022-02-18 14:25:46,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:25:46,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932054668] [2022-02-18 14:25:46,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:25:46,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:25:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:25:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:25:46,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:25:46,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932054668] [2022-02-18 14:25:46,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932054668] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:25:46,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121563982] [2022-02-18 14:25:46,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:25:46,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:25:46,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:25:46,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:25:46,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-18 14:25:46,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-18 14:25:46,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:25:46,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-18 14:25:46,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:25:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:25:46,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:25:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:25:46,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121563982] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:25:46,849 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:25:46,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2022-02-18 14:25:46,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115670406] [2022-02-18 14:25:46,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:25:46,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-18 14:25:46,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:25:46,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-18 14:25:46,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-18 14:25:46,850 INFO L87 Difference]: Start difference. First operand 1347 states and 3553 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:46,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:25:46,949 INFO L93 Difference]: Finished difference Result 1372 states and 3618 transitions. [2022-02-18 14:25:46,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 14:25:46,949 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 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 81 [2022-02-18 14:25:46,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:25:46,949 INFO L225 Difference]: With dead ends: 1372 [2022-02-18 14:25:46,950 INFO L226 Difference]: Without dead ends: 0 [2022-02-18 14:25:46,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 155 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-02-18 14:25:46,950 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 193 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:25:46,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 656 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:25:46,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-18 14:25:46,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-18 14:25:46,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:46,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-18 14:25:46,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2022-02-18 14:25:46,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:25:46,951 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-18 14:25:46,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:25:46,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-18 14:25:46,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-18 14:25:46,953 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-18 14:25:46,954 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-18 14:25:46,954 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-18 14:25:46,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-18 14:25:47,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:25:47,163 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1] [2022-02-18 14:25:47,164 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-18 14:25:47,164 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-18 14:25:47,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 02:25:47 BasicIcfg [2022-02-18 14:25:47,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-18 14:25:47,166 INFO L158 Benchmark]: Toolchain (without parser) took 8898.18ms. Allocated memory was 176.2MB in the beginning and 308.3MB in the end (delta: 132.1MB). Free memory was 117.9MB in the beginning and 254.8MB in the end (delta: -136.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 14:25:47,166 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory was 134.0MB in the beginning and 134.0MB in the end (delta: 72.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 14:25:47,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.67ms. Allocated memory was 176.2MB in the beginning and 256.9MB in the end (delta: 80.7MB). Free memory was 117.6MB in the beginning and 229.4MB in the end (delta: -111.8MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. [2022-02-18 14:25:47,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.28ms. Allocated memory is still 256.9MB. Free memory was 229.4MB in the beginning and 227.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-18 14:25:47,167 INFO L158 Benchmark]: Boogie Preprocessor took 29.55ms. Allocated memory is still 256.9MB. Free memory was 227.8MB in the beginning and 226.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 14:25:47,167 INFO L158 Benchmark]: RCFGBuilder took 291.48ms. Allocated memory is still 256.9MB. Free memory was 226.7MB in the beginning and 213.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-18 14:25:47,167 INFO L158 Benchmark]: TraceAbstraction took 8264.62ms. Allocated memory was 256.9MB in the beginning and 308.3MB in the end (delta: 51.4MB). Free memory was 212.6MB in the beginning and 254.8MB in the end (delta: -42.2MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2022-02-18 14:25:47,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory was 134.0MB in the beginning and 134.0MB in the end (delta: 72.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 256.67ms. Allocated memory was 176.2MB in the beginning and 256.9MB in the end (delta: 80.7MB). Free memory was 117.6MB in the beginning and 229.4MB in the end (delta: -111.8MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.28ms. Allocated memory is still 256.9MB. Free memory was 229.4MB in the beginning and 227.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.55ms. Allocated memory is still 256.9MB. Free memory was 227.8MB in the beginning and 226.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 291.48ms. Allocated memory is still 256.9MB. Free memory was 226.7MB in the beginning and 213.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 8264.62ms. Allocated memory was 256.9MB in the beginning and 308.3MB in the end (delta: 51.4MB). Free memory was 212.6MB in the beginning and 254.8MB in the end (delta: -42.2MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 87]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1165 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1165 mSDsluCounter, 3351 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 80 IncrementalHoareTripleChecker+Unchecked, 2801 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 869 IncrementalHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 771 mSDtfsCounter, 869 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 555 GetRequests, 463 SyntacticMatches, 9 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1347occurred in iteration=8, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1034 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 972 NumberOfCodeBlocks, 972 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1110 ConstructedInterpolants, 10 QuantifiedInterpolants, 7060 SizeOfPredicates, 29 NumberOfNonLiveVariables, 685 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 12/20 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-18 14:25:47,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...