/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-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 17:14:17,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 17:14:17,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 17:14:17,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 17:14:17,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 17:14:17,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 17:14:17,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 17:14:17,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 17:14:17,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 17:14:17,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 17:14:17,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 17:14:17,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-03 17:14:17,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-03 17:14:17,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-03 17:14:17,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-03 17:14:17,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-03 17:14:17,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-03 17:14:17,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-03 17:14:17,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-03 17:14:17,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-03 17:14:17,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-03 17:14:17,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-03 17:14:17,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-03 17:14:17,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-03 17:14:17,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-03 17:14:17,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 17:14:17,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 17:14:17,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 17:14:17,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 17:14:17,201 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 17:14:17,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 17:14:17,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 17:14:17,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 17:14:17,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 17:14:17,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 17:14:17,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 17:14:17,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 17:14:17,203 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 17:14:17,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 17:14:17,203 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 17:14:17,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 17:14:17,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 17:14:17,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 17:14:17,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 17:14:17,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 17:14:17,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 17:14:17,204 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 17:14:17,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 17:14:17,204 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 17:14:17,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 17:14:17,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 17:14:17,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 17:14:17,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 17:14:17,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 17:14:17,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:14:17,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 17:14:17,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 17:14:17,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 17:14:17,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 17:14:17,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 17:14:17,206 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 17:14:17,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 17:14:17,206 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 17:14:17,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 17:14:17,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 17:14:17,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 17:14:17,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 17:14:17,403 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 17:14:17,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-03-03 17:14:17,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d274d2bc6/f15e07e56aa94002b85f31a744bcc895/FLAG3fc9dc270 [2022-03-03 17:14:17,824 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 17:14:17,825 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-03-03 17:14:17,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d274d2bc6/f15e07e56aa94002b85f31a744bcc895/FLAG3fc9dc270 [2022-03-03 17:14:17,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d274d2bc6/f15e07e56aa94002b85f31a744bcc895 [2022-03-03 17:14:17,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 17:14:17,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 17:14:17,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 17:14:17,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 17:14:17,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 17:14:17,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:14:17" (1/1) ... [2022-03-03 17:14:17,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74865949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:17, skipping insertion in model container [2022-03-03 17:14:17,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:14:17" (1/1) ... [2022-03-03 17:14:17,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 17:14:17,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 17:14:18,020 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-ticket-5.wvr.c[3963,3976] [2022-03-03 17:14:18,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:14:18,029 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 17:14:18,060 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-ticket-5.wvr.c[3963,3976] [2022-03-03 17:14:18,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:14:18,070 INFO L208 MainTranslator]: Completed translation [2022-03-03 17:14:18,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18 WrapperNode [2022-03-03 17:14:18,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 17:14:18,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 17:14:18,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 17:14:18,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 17:14:18,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18" (1/1) ... [2022-03-03 17:14:18,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18" (1/1) ... [2022-03-03 17:14:18,114 INFO L137 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2022-03-03 17:14:18,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 17:14:18,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 17:14:18,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 17:14:18,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 17:14:18,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18" (1/1) ... [2022-03-03 17:14:18,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18" (1/1) ... [2022-03-03 17:14:18,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18" (1/1) ... [2022-03-03 17:14:18,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18" (1/1) ... [2022-03-03 17:14:18,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18" (1/1) ... [2022-03-03 17:14:18,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18" (1/1) ... [2022-03-03 17:14:18,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18" (1/1) ... [2022-03-03 17:14:18,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 17:14:18,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 17:14:18,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 17:14:18,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 17:14:18,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18" (1/1) ... [2022-03-03 17:14:18,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:14:18,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:14:18,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 17:14:18,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 17:14:18,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 17:14:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 17:14:18,254 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 17:14:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 17:14:18,254 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 17:14:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-03 17:14:18,254 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-03 17:14:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-03 17:14:18,254 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-03 17:14:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 17:14:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-03-03 17:14:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-03-03 17:14:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 17:14:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 17:14:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-03 17:14:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-03 17:14:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 17:14:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 17:14:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 17:14:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 17:14:18,257 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 17:14:18,351 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 17:14:18,352 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 17:14:18,585 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 17:14:18,667 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 17:14:18,667 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 17:14:18,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:14:18 BoogieIcfgContainer [2022-03-03 17:14:18,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 17:14:18,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 17:14:18,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 17:14:18,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 17:14:18,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 05:14:17" (1/3) ... [2022-03-03 17:14:18,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3492a3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:14:18, skipping insertion in model container [2022-03-03 17:14:18,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:14:18" (2/3) ... [2022-03-03 17:14:18,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3492a3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:14:18, skipping insertion in model container [2022-03-03 17:14:18,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:14:18" (3/3) ... [2022-03-03 17:14:18,677 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-03-03 17:14:18,684 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 17:14:18,684 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 17:14:18,685 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 17:14:18,685 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 17:14:18,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,755 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,755 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,755 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,755 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,755 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,755 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,756 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,756 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,756 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,756 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,756 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,756 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,757 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,758 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,758 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,758 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,758 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,758 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,758 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,758 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,758 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,759 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,759 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,759 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,759 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,759 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,759 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,759 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,759 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,763 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,763 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,763 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,763 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,763 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,763 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,765 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,765 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,765 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,765 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,765 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,765 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,765 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,766 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,766 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,766 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,766 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,766 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:14:18,775 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-03-03 17:14:18,803 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 17:14:18,808 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 17:14:18,808 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-03-03 17:14:18,819 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 179 places, 165 transitions, 370 flow [2022-03-03 17:14:21,947 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 104505 states, 104504 states have (on average 4.851670749444997) internal successors, (507019), 104504 states have internal predecessors, (507019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:22,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 104505 states, 104504 states have (on average 4.851670749444997) internal successors, (507019), 104504 states have internal predecessors, (507019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:23,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:14:23,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:23,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:23,212 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:14:23,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:23,216 INFO L85 PathProgramCache]: Analyzing trace with hash 337044275, now seen corresponding path program 1 times [2022-03-03 17:14:23,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:23,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381688404] [2022-03-03 17:14:23,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:23,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:23,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:23,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:23,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381688404] [2022-03-03 17:14:23,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381688404] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:23,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:23,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 17:14:23,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666494910] [2022-03-03 17:14:23,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:23,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 17:14:23,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:23,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 17:14:23,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-03 17:14:23,865 INFO L87 Difference]: Start difference. First operand has 104505 states, 104504 states have (on average 4.851670749444997) internal successors, (507019), 104504 states have internal predecessors, (507019), 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 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:27,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:27,623 INFO L93 Difference]: Finished difference Result 278147 states and 1328367 transitions. [2022-03-03 17:14:27,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 17:14:27,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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 141 [2022-03-03 17:14:27,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:30,166 INFO L225 Difference]: With dead ends: 278147 [2022-03-03 17:14:30,166 INFO L226 Difference]: Without dead ends: 278144 [2022-03-03 17:14:30,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:14:30,169 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 322 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:30,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 618 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:14:31,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278144 states. [2022-03-03 17:14:38,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278144 to 132290. [2022-03-03 17:14:39,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132290 states, 132289 states have (on average 4.78342114612704) internal successors, (632794), 132289 states have internal predecessors, (632794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:40,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132290 states to 132290 states and 632794 transitions. [2022-03-03 17:14:40,608 INFO L78 Accepts]: Start accepts. Automaton has 132290 states and 632794 transitions. Word has length 141 [2022-03-03 17:14:40,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:40,609 INFO L470 AbstractCegarLoop]: Abstraction has 132290 states and 632794 transitions. [2022-03-03 17:14:40,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:40,615 INFO L276 IsEmpty]: Start isEmpty. Operand 132290 states and 632794 transitions. [2022-03-03 17:14:41,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:14:41,289 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:41,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:41,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 17:14:41,290 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:14:41,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:41,291 INFO L85 PathProgramCache]: Analyzing trace with hash 927256055, now seen corresponding path program 2 times [2022-03-03 17:14:41,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:41,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038861466] [2022-03-03 17:14:41,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:41,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:41,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:41,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038861466] [2022-03-03 17:14:41,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038861466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:41,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:41,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 17:14:41,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958151097] [2022-03-03 17:14:41,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:41,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 17:14:41,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:41,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 17:14:41,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-03 17:14:41,442 INFO L87 Difference]: Start difference. First operand 132290 states and 632794 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:45,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:45,299 INFO L93 Difference]: Finished difference Result 302031 states and 1436129 transitions. [2022-03-03 17:14:45,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 17:14:45,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 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 141 [2022-03-03 17:14:45,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:49,027 INFO L225 Difference]: With dead ends: 302031 [2022-03-03 17:14:49,028 INFO L226 Difference]: Without dead ends: 302031 [2022-03-03 17:14:49,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:14:49,031 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 302 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:49,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 773 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:14:49,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302031 states. [2022-03-03 17:14:57,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302031 to 151275. [2022-03-03 17:14:57,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151275 states, 151274 states have (on average 4.745825455795444) internal successors, (717920), 151274 states have internal predecessors, (717920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:59,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151275 states to 151275 states and 717920 transitions. [2022-03-03 17:14:59,706 INFO L78 Accepts]: Start accepts. Automaton has 151275 states and 717920 transitions. Word has length 141 [2022-03-03 17:14:59,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:59,710 INFO L470 AbstractCegarLoop]: Abstraction has 151275 states and 717920 transitions. [2022-03-03 17:14:59,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:59,710 INFO L276 IsEmpty]: Start isEmpty. Operand 151275 states and 717920 transitions. [2022-03-03 17:15:00,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:15:00,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:00,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:00,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 17:15:00,823 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:15:00,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:00,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1372275635, now seen corresponding path program 3 times [2022-03-03 17:15:00,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:00,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987942746] [2022-03-03 17:15:00,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:00,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:01,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:01,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:01,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987942746] [2022-03-03 17:15:01,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987942746] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:01,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:01,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:15:01,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950178078] [2022-03-03 17:15:01,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:01,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:15:01,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:01,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:15:01,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:15:01,408 INFO L87 Difference]: Start difference. First operand 151275 states and 717920 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:04,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:04,854 INFO L93 Difference]: Finished difference Result 226530 states and 1066169 transitions. [2022-03-03 17:15:04,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:15:04,854 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 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 141 [2022-03-03 17:15:04,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:06,259 INFO L225 Difference]: With dead ends: 226530 [2022-03-03 17:15:06,259 INFO L226 Difference]: Without dead ends: 146466 [2022-03-03 17:15:06,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2022-03-03 17:15:06,270 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 469 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:06,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 999 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:15:06,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146466 states. [2022-03-03 17:15:11,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146466 to 146038. [2022-03-03 17:15:11,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146038 states, 146037 states have (on average 4.742373508083568) internal successors, (692562), 146037 states have internal predecessors, (692562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:13,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146038 states to 146038 states and 692562 transitions. [2022-03-03 17:15:13,623 INFO L78 Accepts]: Start accepts. Automaton has 146038 states and 692562 transitions. Word has length 141 [2022-03-03 17:15:13,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:13,623 INFO L470 AbstractCegarLoop]: Abstraction has 146038 states and 692562 transitions. [2022-03-03 17:15:13,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:13,623 INFO L276 IsEmpty]: Start isEmpty. Operand 146038 states and 692562 transitions. [2022-03-03 17:15:14,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:15:14,410 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:14,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:14,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 17:15:14,411 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:15:14,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:14,412 INFO L85 PathProgramCache]: Analyzing trace with hash -427148241, now seen corresponding path program 4 times [2022-03-03 17:15:14,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:14,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389899093] [2022-03-03 17:15:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:14,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:14,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:14,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389899093] [2022-03-03 17:15:14,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389899093] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:14,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:14,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 17:15:14,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005815073] [2022-03-03 17:15:14,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:14,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 17:15:14,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:14,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 17:15:14,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-03 17:15:14,594 INFO L87 Difference]: Start difference. First operand 146038 states and 692562 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:18,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:18,254 INFO L93 Difference]: Finished difference Result 299654 states and 1406659 transitions. [2022-03-03 17:15:18,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 17:15:18,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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 141 [2022-03-03 17:15:18,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:21,369 INFO L225 Difference]: With dead ends: 299654 [2022-03-03 17:15:21,369 INFO L226 Difference]: Without dead ends: 299654 [2022-03-03 17:15:21,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:15:21,370 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 245 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:21,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 683 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:15:22,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299654 states. [2022-03-03 17:15:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299654 to 167825. [2022-03-03 17:15:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167825 states, 167824 states have (on average 4.665965535322719) internal successors, (783061), 167824 states have internal predecessors, (783061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:33,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167825 states to 167825 states and 783061 transitions. [2022-03-03 17:15:33,190 INFO L78 Accepts]: Start accepts. Automaton has 167825 states and 783061 transitions. Word has length 141 [2022-03-03 17:15:33,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:33,191 INFO L470 AbstractCegarLoop]: Abstraction has 167825 states and 783061 transitions. [2022-03-03 17:15:33,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:33,191 INFO L276 IsEmpty]: Start isEmpty. Operand 167825 states and 783061 transitions. [2022-03-03 17:15:33,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:15:33,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:33,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:33,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 17:15:33,778 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:15:33,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:33,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1402004545, now seen corresponding path program 5 times [2022-03-03 17:15:33,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:33,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234503517] [2022-03-03 17:15:33,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:33,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:34,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:34,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:34,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234503517] [2022-03-03 17:15:34,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234503517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:34,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:34,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:15:34,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288525895] [2022-03-03 17:15:34,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:34,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:15:34,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:34,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:15:34,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:15:34,167 INFO L87 Difference]: Start difference. First operand 167825 states and 783061 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:36,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:36,443 INFO L93 Difference]: Finished difference Result 207636 states and 974306 transitions. [2022-03-03 17:15:36,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:15:36,443 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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 141 [2022-03-03 17:15:36,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:38,358 INFO L225 Difference]: With dead ends: 207636 [2022-03-03 17:15:38,358 INFO L226 Difference]: Without dead ends: 207594 [2022-03-03 17:15:38,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:15:38,359 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 272 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:38,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 1054 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:15:39,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207594 states. [2022-03-03 17:15:46,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207594 to 168171. [2022-03-03 17:15:46,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168171 states, 168170 states have (on average 4.662817387167747) internal successors, (784146), 168170 states have internal predecessors, (784146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:48,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168171 states to 168171 states and 784146 transitions. [2022-03-03 17:15:48,397 INFO L78 Accepts]: Start accepts. Automaton has 168171 states and 784146 transitions. Word has length 141 [2022-03-03 17:15:48,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:48,397 INFO L470 AbstractCegarLoop]: Abstraction has 168171 states and 784146 transitions. [2022-03-03 17:15:48,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:48,397 INFO L276 IsEmpty]: Start isEmpty. Operand 168171 states and 784146 transitions. [2022-03-03 17:15:48,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:15:48,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:48,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:49,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 17:15:49,000 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:15:49,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:49,001 INFO L85 PathProgramCache]: Analyzing trace with hash 967658261, now seen corresponding path program 6 times [2022-03-03 17:15:49,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:49,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97249791] [2022-03-03 17:15:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:49,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:49,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:49,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:49,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97249791] [2022-03-03 17:15:49,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97249791] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:49,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:49,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:15:49,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174643697] [2022-03-03 17:15:49,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:49,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:15:49,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:49,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:15:49,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:15:49,122 INFO L87 Difference]: Start difference. First operand 168171 states and 784146 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:52,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:52,665 INFO L93 Difference]: Finished difference Result 276695 states and 1298917 transitions. [2022-03-03 17:15:52,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 17:15:52,666 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 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 141 [2022-03-03 17:15:52,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:56,058 INFO L225 Difference]: With dead ends: 276695 [2022-03-03 17:15:56,058 INFO L226 Difference]: Without dead ends: 276539 [2022-03-03 17:15:56,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:15:56,077 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 334 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:56,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 827 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:15:56,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276539 states. [2022-03-03 17:16:05,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276539 to 175348. [2022-03-03 17:16:05,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175348 states, 175347 states have (on average 4.655939365942959) internal successors, (816405), 175347 states have internal predecessors, (816405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:16:07,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175348 states to 175348 states and 816405 transitions. [2022-03-03 17:16:07,647 INFO L78 Accepts]: Start accepts. Automaton has 175348 states and 816405 transitions. Word has length 141 [2022-03-03 17:16:07,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:16:07,647 INFO L470 AbstractCegarLoop]: Abstraction has 175348 states and 816405 transitions. [2022-03-03 17:16:07,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:16:07,647 INFO L276 IsEmpty]: Start isEmpty. Operand 175348 states and 816405 transitions. [2022-03-03 17:16:08,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:16:08,676 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:16:08,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:16:08,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 17:16:08,677 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:16:08,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:16:08,677 INFO L85 PathProgramCache]: Analyzing trace with hash -253399513, now seen corresponding path program 7 times [2022-03-03 17:16:08,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:16:08,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418984221] [2022-03-03 17:16:08,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:16:08,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:16:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:16:08,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:16:08,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:16:08,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418984221] [2022-03-03 17:16:08,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418984221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:16:08,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:16:08,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 17:16:08,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040003638] [2022-03-03 17:16:08,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:16:08,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 17:16:08,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:16:08,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 17:16:08,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-03 17:16:08,786 INFO L87 Difference]: Start difference. First operand 175348 states and 816405 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:16:13,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:16:13,008 INFO L93 Difference]: Finished difference Result 325604 states and 1521083 transitions. [2022-03-03 17:16:13,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 17:16:13,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 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 141 [2022-03-03 17:16:13,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:16:17,853 INFO L225 Difference]: With dead ends: 325604 [2022-03-03 17:16:17,853 INFO L226 Difference]: Without dead ends: 325418 [2022-03-03 17:16:17,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:16:17,854 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 295 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:16:17,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 758 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:16:19,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325418 states. [2022-03-03 17:16:28,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325418 to 188043. [2022-03-03 17:16:28,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188043 states, 188042 states have (on average 4.631459992980291) internal successors, (870909), 188042 states have internal predecessors, (870909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:16:30,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188043 states to 188043 states and 870909 transitions. [2022-03-03 17:16:30,701 INFO L78 Accepts]: Start accepts. Automaton has 188043 states and 870909 transitions. Word has length 141 [2022-03-03 17:16:30,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:16:30,702 INFO L470 AbstractCegarLoop]: Abstraction has 188043 states and 870909 transitions. [2022-03-03 17:16:30,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:16:30,702 INFO L276 IsEmpty]: Start isEmpty. Operand 188043 states and 870909 transitions. [2022-03-03 17:16:31,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:16:31,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:16:31,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:16:31,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 17:16:31,657 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:16:31,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:16:31,658 INFO L85 PathProgramCache]: Analyzing trace with hash -565532079, now seen corresponding path program 8 times [2022-03-03 17:16:31,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:16:31,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089043597] [2022-03-03 17:16:31,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:16:31,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:16:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:16:31,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:16:31,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:16:31,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089043597] [2022-03-03 17:16:31,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089043597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:16:31,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:16:31,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 17:16:31,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534235075] [2022-03-03 17:16:31,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:16:31,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 17:16:31,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:16:31,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 17:16:31,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-03 17:16:31,774 INFO L87 Difference]: Start difference. First operand 188043 states and 870909 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:16:35,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:16:35,763 INFO L93 Difference]: Finished difference Result 326495 states and 1511661 transitions. [2022-03-03 17:16:35,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 17:16:35,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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 141 [2022-03-03 17:16:35,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:16:40,998 INFO L225 Difference]: With dead ends: 326495 [2022-03-03 17:16:40,998 INFO L226 Difference]: Without dead ends: 326327 [2022-03-03 17:16:40,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:16:41,000 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 316 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:16:41,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 612 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:16:42,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326327 states. [2022-03-03 17:16:50,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326327 to 195428. [2022-03-03 17:16:51,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195428 states, 195427 states have (on average 4.603683216751012) internal successors, (899684), 195427 states have internal predecessors, (899684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:16:53,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195428 states to 195428 states and 899684 transitions. [2022-03-03 17:16:53,009 INFO L78 Accepts]: Start accepts. Automaton has 195428 states and 899684 transitions. Word has length 141 [2022-03-03 17:16:53,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:16:53,009 INFO L470 AbstractCegarLoop]: Abstraction has 195428 states and 899684 transitions. [2022-03-03 17:16:53,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:16:53,009 INFO L276 IsEmpty]: Start isEmpty. Operand 195428 states and 899684 transitions. [2022-03-03 17:16:53,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:16:53,974 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:16:53,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:16:53,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 17:16:53,975 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:16:53,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:16:53,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2079323817, now seen corresponding path program 9 times [2022-03-03 17:16:53,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:16:53,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624532916] [2022-03-03 17:16:53,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:16:53,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:16:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:16:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:16:54,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:16:54,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624532916] [2022-03-03 17:16:54,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624532916] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:16:54,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:16:54,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 17:16:54,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187969217] [2022-03-03 17:16:54,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:16:54,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 17:16:54,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:16:54,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 17:16:54,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-03 17:16:54,076 INFO L87 Difference]: Start difference. First operand 195428 states and 899684 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:16:58,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:16:58,641 INFO L93 Difference]: Finished difference Result 327908 states and 1515730 transitions. [2022-03-03 17:16:58,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 17:16:58,642 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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 141 [2022-03-03 17:16:58,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:02,728 INFO L225 Difference]: With dead ends: 327908 [2022-03-03 17:17:02,729 INFO L226 Difference]: Without dead ends: 327728 [2022-03-03 17:17:02,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:17:02,731 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 157 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:02,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 707 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:17:03,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327728 states. [2022-03-03 17:17:13,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327728 to 201962. [2022-03-03 17:17:13,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201962 states, 201961 states have (on average 4.585117918806106) internal successors, (926015), 201961 states have internal predecessors, (926015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:15,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201962 states to 201962 states and 926015 transitions. [2022-03-03 17:17:15,698 INFO L78 Accepts]: Start accepts. Automaton has 201962 states and 926015 transitions. Word has length 141 [2022-03-03 17:17:15,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:15,698 INFO L470 AbstractCegarLoop]: Abstraction has 201962 states and 926015 transitions. [2022-03-03 17:17:15,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:15,698 INFO L276 IsEmpty]: Start isEmpty. Operand 201962 states and 926015 transitions. [2022-03-03 17:17:16,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:17:16,442 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:16,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:16,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 17:17:16,443 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:17:16,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:16,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1277658205, now seen corresponding path program 10 times [2022-03-03 17:17:16,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:16,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466418160] [2022-03-03 17:17:16,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:16,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:16,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:17:16,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:16,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466418160] [2022-03-03 17:17:16,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466418160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:17:16,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:17:16,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 17:17:16,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617917818] [2022-03-03 17:17:16,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:17:16,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 17:17:16,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:16,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 17:17:16,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-03 17:17:16,534 INFO L87 Difference]: Start difference. First operand 201962 states and 926015 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:20,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:20,506 INFO L93 Difference]: Finished difference Result 324312 states and 1492298 transitions. [2022-03-03 17:17:20,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 17:17:20,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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 141 [2022-03-03 17:17:20,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:24,691 INFO L225 Difference]: With dead ends: 324312 [2022-03-03 17:17:24,691 INFO L226 Difference]: Without dead ends: 324312 [2022-03-03 17:17:24,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:17:24,696 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 184 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:24,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 785 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:17:25,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324312 states. [2022-03-03 17:17:35,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324312 to 210711. [2022-03-03 17:17:35,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210711 states, 210710 states have (on average 4.540358786958379) internal successors, (956699), 210710 states have internal predecessors, (956699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:37,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210711 states to 210711 states and 956699 transitions. [2022-03-03 17:17:37,709 INFO L78 Accepts]: Start accepts. Automaton has 210711 states and 956699 transitions. Word has length 141 [2022-03-03 17:17:37,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:37,709 INFO L470 AbstractCegarLoop]: Abstraction has 210711 states and 956699 transitions. [2022-03-03 17:17:37,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:37,710 INFO L276 IsEmpty]: Start isEmpty. Operand 210711 states and 956699 transitions. [2022-03-03 17:17:38,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:17:38,750 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:38,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:38,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 17:17:38,752 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:17:38,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:38,752 INFO L85 PathProgramCache]: Analyzing trace with hash 952884763, now seen corresponding path program 11 times [2022-03-03 17:17:38,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:38,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084600125] [2022-03-03 17:17:38,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:38,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:38,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:17:38,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:38,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084600125] [2022-03-03 17:17:38,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084600125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:17:38,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:17:38,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:17:38,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862504570] [2022-03-03 17:17:38,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:17:38,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:17:38,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:38,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:17:38,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:17:38,866 INFO L87 Difference]: Start difference. First operand 210711 states and 956699 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:44,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:44,079 INFO L93 Difference]: Finished difference Result 372906 states and 1696490 transitions. [2022-03-03 17:17:44,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:17:44,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 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 141 [2022-03-03 17:17:44,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:48,053 INFO L225 Difference]: With dead ends: 372906 [2022-03-03 17:17:48,053 INFO L226 Difference]: Without dead ends: 372906 [2022-03-03 17:17:48,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:17:48,054 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 366 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:48,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 875 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:17:49,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372906 states. [2022-03-03 17:18:00,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372906 to 227658. [2022-03-03 17:18:00,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227658 states, 227657 states have (on average 4.498842557004616) internal successors, (1024193), 227657 states have internal predecessors, (1024193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:03,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227658 states to 227658 states and 1024193 transitions. [2022-03-03 17:18:03,036 INFO L78 Accepts]: Start accepts. Automaton has 227658 states and 1024193 transitions. Word has length 141 [2022-03-03 17:18:03,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:18:03,037 INFO L470 AbstractCegarLoop]: Abstraction has 227658 states and 1024193 transitions. [2022-03-03 17:18:03,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:03,037 INFO L276 IsEmpty]: Start isEmpty. Operand 227658 states and 1024193 transitions. [2022-03-03 17:18:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:18:04,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:18:04,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:18:04,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 17:18:04,536 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:18:04,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:18:04,536 INFO L85 PathProgramCache]: Analyzing trace with hash 2143037529, now seen corresponding path program 12 times [2022-03-03 17:18:04,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:18:04,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979918960] [2022-03-03 17:18:04,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:18:04,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:18:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:18:04,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:18:04,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:18:04,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979918960] [2022-03-03 17:18:04,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979918960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:18:04,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:18:04,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:18:04,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276615399] [2022-03-03 17:18:04,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:18:04,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:18:04,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:18:04,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:18:04,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:18:04,987 INFO L87 Difference]: Start difference. First operand 227658 states and 1024193 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:10,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:18:10,461 INFO L93 Difference]: Finished difference Result 352818 states and 1591791 transitions. [2022-03-03 17:18:10,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:18:10,461 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 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 141 [2022-03-03 17:18:10,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:18:12,169 INFO L225 Difference]: With dead ends: 352818 [2022-03-03 17:18:12,169 INFO L226 Difference]: Without dead ends: 177480 [2022-03-03 17:18:12,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-03-03 17:18:12,170 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 552 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:18:12,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 1027 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:18:12,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177480 states. [2022-03-03 17:18:18,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177480 to 177480. [2022-03-03 17:18:18,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177480 states, 177479 states have (on average 4.445680897458291) internal successors, (789015), 177479 states have internal predecessors, (789015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:20,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177480 states to 177480 states and 789015 transitions. [2022-03-03 17:18:20,502 INFO L78 Accepts]: Start accepts. Automaton has 177480 states and 789015 transitions. Word has length 141 [2022-03-03 17:18:20,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:18:20,503 INFO L470 AbstractCegarLoop]: Abstraction has 177480 states and 789015 transitions. [2022-03-03 17:18:20,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:20,503 INFO L276 IsEmpty]: Start isEmpty. Operand 177480 states and 789015 transitions. [2022-03-03 17:18:21,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:18:21,196 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:18:21,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:18:21,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 17:18:21,197 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:18:21,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:18:21,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1084321801, now seen corresponding path program 13 times [2022-03-03 17:18:21,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:18:21,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784496116] [2022-03-03 17:18:21,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:18:21,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:18:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:18:21,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:18:21,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:18:21,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784496116] [2022-03-03 17:18:21,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784496116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:18:21,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:18:21,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:18:21,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111494874] [2022-03-03 17:18:21,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:18:21,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:18:21,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:18:21,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:18:21,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:18:21,635 INFO L87 Difference]: Start difference. First operand 177480 states and 789015 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:25,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:18:25,909 INFO L93 Difference]: Finished difference Result 319257 states and 1422152 transitions. [2022-03-03 17:18:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:18:25,910 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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 141 [2022-03-03 17:18:25,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:18:29,795 INFO L225 Difference]: With dead ends: 319257 [2022-03-03 17:18:29,795 INFO L226 Difference]: Without dead ends: 318591 [2022-03-03 17:18:29,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:18:29,796 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 283 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:18:29,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 1530 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:18:30,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318591 states. [2022-03-03 17:18:39,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318591 to 182307. [2022-03-03 17:18:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182307 states, 182306 states have (on average 4.423227979331454) internal successors, (806381), 182306 states have internal predecessors, (806381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182307 states to 182307 states and 806381 transitions. [2022-03-03 17:18:41,433 INFO L78 Accepts]: Start accepts. Automaton has 182307 states and 806381 transitions. Word has length 141 [2022-03-03 17:18:41,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:18:41,433 INFO L470 AbstractCegarLoop]: Abstraction has 182307 states and 806381 transitions. [2022-03-03 17:18:41,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:41,433 INFO L276 IsEmpty]: Start isEmpty. Operand 182307 states and 806381 transitions. [2022-03-03 17:18:42,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:18:42,148 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:18:42,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:18:42,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 17:18:42,149 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:18:42,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:18:42,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1199409477, now seen corresponding path program 14 times [2022-03-03 17:18:42,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:18:42,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305622854] [2022-03-03 17:18:42,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:18:42,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:18:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:18:42,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:18:42,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:18:42,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305622854] [2022-03-03 17:18:42,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305622854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:18:42,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:18:42,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:18:42,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155954393] [2022-03-03 17:18:42,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:18:42,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:18:42,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:18:42,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:18:42,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:18:42,631 INFO L87 Difference]: Start difference. First operand 182307 states and 806381 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:45,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:18:45,278 INFO L93 Difference]: Finished difference Result 226515 states and 1007077 transitions. [2022-03-03 17:18:45,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:18:45,278 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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 141 [2022-03-03 17:18:45,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:18:47,945 INFO L225 Difference]: With dead ends: 226515 [2022-03-03 17:18:47,946 INFO L226 Difference]: Without dead ends: 226389 [2022-03-03 17:18:47,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:18:47,946 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 289 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:18:47,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 1002 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:18:48,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226389 states. [2022-03-03 17:18:55,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226389 to 177567. [2022-03-03 17:18:56,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177567 states, 177566 states have (on average 4.423870560805559) internal successors, (785529), 177566 states have internal predecessors, (785529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:57,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177567 states to 177567 states and 785529 transitions. [2022-03-03 17:18:57,700 INFO L78 Accepts]: Start accepts. Automaton has 177567 states and 785529 transitions. Word has length 141 [2022-03-03 17:18:57,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:18:57,701 INFO L470 AbstractCegarLoop]: Abstraction has 177567 states and 785529 transitions. [2022-03-03 17:18:57,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:57,701 INFO L276 IsEmpty]: Start isEmpty. Operand 177567 states and 785529 transitions. [2022-03-03 17:18:58,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:18:58,295 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:18:58,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:18:58,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-03 17:18:58,302 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:18:58,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:18:58,303 INFO L85 PathProgramCache]: Analyzing trace with hash 246859135, now seen corresponding path program 15 times [2022-03-03 17:18:58,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:18:58,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496488345] [2022-03-03 17:18:58,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:18:58,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:18:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:18:58,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:18:58,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:18:58,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496488345] [2022-03-03 17:18:58,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496488345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:18:58,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:18:58,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:18:58,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207697963] [2022-03-03 17:18:58,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:18:58,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:18:58,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:18:58,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:18:58,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:18:58,391 INFO L87 Difference]: Start difference. First operand 177567 states and 785529 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:01,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:19:01,091 INFO L93 Difference]: Finished difference Result 221871 states and 986393 transitions. [2022-03-03 17:19:01,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:19:01,091 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 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 141 [2022-03-03 17:19:01,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:19:03,672 INFO L225 Difference]: With dead ends: 221871 [2022-03-03 17:19:03,672 INFO L226 Difference]: Without dead ends: 221793 [2022-03-03 17:19:03,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=125, Unknown=0, NotChecked=0, Total=210 [2022-03-03 17:19:03,674 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 465 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:19:03,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 980 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:19:04,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221793 states. [2022-03-03 17:19:11,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221793 to 177621. [2022-03-03 17:19:12,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177621 states, 177620 states have (on average 4.422852156288706) internal successors, (785587), 177620 states have internal predecessors, (785587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:13,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177621 states to 177621 states and 785587 transitions. [2022-03-03 17:19:13,934 INFO L78 Accepts]: Start accepts. Automaton has 177621 states and 785587 transitions. Word has length 141 [2022-03-03 17:19:13,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:19:13,934 INFO L470 AbstractCegarLoop]: Abstraction has 177621 states and 785587 transitions. [2022-03-03 17:19:13,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:13,934 INFO L276 IsEmpty]: Start isEmpty. Operand 177621 states and 785587 transitions. [2022-03-03 17:19:14,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:19:14,759 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:19:14,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:19:14,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 17:19:14,760 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:19:14,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:19:14,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1523208277, now seen corresponding path program 16 times [2022-03-03 17:19:14,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:19:14,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101434959] [2022-03-03 17:19:14,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:19:14,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:19:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:19:14,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:19:14,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:19:14,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101434959] [2022-03-03 17:19:14,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101434959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:19:14,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:19:14,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:19:14,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507587293] [2022-03-03 17:19:14,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:19:14,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:19:14,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:19:14,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:19:14,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:19:14,928 INFO L87 Difference]: Start difference. First operand 177621 states and 785587 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:18,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:19:18,736 INFO L93 Difference]: Finished difference Result 316146 states and 1405801 transitions. [2022-03-03 17:19:18,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 17:19:18,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 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 141 [2022-03-03 17:19:18,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:19:23,001 INFO L225 Difference]: With dead ends: 316146 [2022-03-03 17:19:23,001 INFO L226 Difference]: Without dead ends: 315480 [2022-03-03 17:19:23,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:19:23,001 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 243 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:19:23,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 968 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:19:23,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315480 states. [2022-03-03 17:19:33,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315480 to 179409. [2022-03-03 17:19:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179409 states, 179408 states have (on average 4.4247357977347725) internal successors, (793833), 179408 states have internal predecessors, (793833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:35,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179409 states to 179409 states and 793833 transitions. [2022-03-03 17:19:35,057 INFO L78 Accepts]: Start accepts. Automaton has 179409 states and 793833 transitions. Word has length 141 [2022-03-03 17:19:35,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:19:35,057 INFO L470 AbstractCegarLoop]: Abstraction has 179409 states and 793833 transitions. [2022-03-03 17:19:35,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:35,057 INFO L276 IsEmpty]: Start isEmpty. Operand 179409 states and 793833 transitions. [2022-03-03 17:19:35,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:19:35,952 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:19:35,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:19:35,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-03 17:19:35,953 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:19:35,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:19:35,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1615866215, now seen corresponding path program 17 times [2022-03-03 17:19:35,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:19:35,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617110517] [2022-03-03 17:19:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:19:35,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:19:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:19:36,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:19:36,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:19:36,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617110517] [2022-03-03 17:19:36,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617110517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:19:36,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:19:36,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:19:36,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701223728] [2022-03-03 17:19:36,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:19:36,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:19:36,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:19:36,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:19:36,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:19:36,171 INFO L87 Difference]: Start difference. First operand 179409 states and 793833 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:40,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:19:40,134 INFO L93 Difference]: Finished difference Result 311256 states and 1379717 transitions. [2022-03-03 17:19:40,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:19:40,135 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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 141 [2022-03-03 17:19:40,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:19:44,360 INFO L225 Difference]: With dead ends: 311256 [2022-03-03 17:19:44,360 INFO L226 Difference]: Without dead ends: 310716 [2022-03-03 17:19:44,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:19:44,361 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 254 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:19:44,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 1329 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:19:45,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310716 states. [2022-03-03 17:19:53,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310716 to 181533. [2022-03-03 17:19:53,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181533 states, 181532 states have (on average 4.403708437079964) internal successors, (799414), 181532 states have internal predecessors, (799414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:55,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181533 states to 181533 states and 799414 transitions. [2022-03-03 17:19:55,218 INFO L78 Accepts]: Start accepts. Automaton has 181533 states and 799414 transitions. Word has length 141 [2022-03-03 17:19:55,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:19:55,218 INFO L470 AbstractCegarLoop]: Abstraction has 181533 states and 799414 transitions. [2022-03-03 17:19:55,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 181533 states and 799414 transitions. [2022-03-03 17:19:56,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:19:56,079 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:19:56,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:19:56,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-03 17:19:56,079 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:19:56,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:19:56,080 INFO L85 PathProgramCache]: Analyzing trace with hash -193164333, now seen corresponding path program 18 times [2022-03-03 17:19:56,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:19:56,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817419428] [2022-03-03 17:19:56,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:19:56,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:19:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:19:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:19:56,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:19:56,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817419428] [2022-03-03 17:19:56,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817419428] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:19:56,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:19:56,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:19:56,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860878246] [2022-03-03 17:19:56,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:19:56,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:19:56,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:19:56,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:19:56,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:19:56,193 INFO L87 Difference]: Start difference. First operand 181533 states and 799414 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:00,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:00,000 INFO L93 Difference]: Finished difference Result 318765 states and 1385206 transitions. [2022-03-03 17:20:00,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:20:00,000 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 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 141 [2022-03-03 17:20:00,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:03,778 INFO L225 Difference]: With dead ends: 318765 [2022-03-03 17:20:03,778 INFO L226 Difference]: Without dead ends: 313767 [2022-03-03 17:20:03,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:20:03,779 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 238 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:03,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1293 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:20:05,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313767 states. [2022-03-03 17:20:14,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313767 to 185187. [2022-03-03 17:20:14,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185187 states, 185186 states have (on average 4.355944833842731) internal successors, (806660), 185186 states have internal predecessors, (806660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:15,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185187 states to 185187 states and 806660 transitions. [2022-03-03 17:20:15,831 INFO L78 Accepts]: Start accepts. Automaton has 185187 states and 806660 transitions. Word has length 141 [2022-03-03 17:20:15,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:15,831 INFO L470 AbstractCegarLoop]: Abstraction has 185187 states and 806660 transitions. [2022-03-03 17:20:15,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:15,831 INFO L276 IsEmpty]: Start isEmpty. Operand 185187 states and 806660 transitions. [2022-03-03 17:20:16,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:20:16,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:16,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:16,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-03 17:20:16,799 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:20:16,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:16,799 INFO L85 PathProgramCache]: Analyzing trace with hash -2137417589, now seen corresponding path program 19 times [2022-03-03 17:20:16,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:16,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279095549] [2022-03-03 17:20:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:16,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:16,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:16,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279095549] [2022-03-03 17:20:16,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279095549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:20:16,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:20:16,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 17:20:16,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005960563] [2022-03-03 17:20:16,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:20:16,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 17:20:16,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:16,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 17:20:16,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-03 17:20:16,931 INFO L87 Difference]: Start difference. First operand 185187 states and 806660 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:20,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:20,752 INFO L93 Difference]: Finished difference Result 300780 states and 1310854 transitions. [2022-03-03 17:20:20,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 17:20:20,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 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 141 [2022-03-03 17:20:20,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:24,702 INFO L225 Difference]: With dead ends: 300780 [2022-03-03 17:20:24,703 INFO L226 Difference]: Without dead ends: 297666 [2022-03-03 17:20:24,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:20:24,703 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 198 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:24,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 955 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:20:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297666 states. [2022-03-03 17:20:33,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297666 to 192297. [2022-03-03 17:20:34,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192297 states, 192296 states have (on average 4.3375681241419475) internal successors, (834097), 192296 states have internal predecessors, (834097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192297 states to 192297 states and 834097 transitions. [2022-03-03 17:20:35,974 INFO L78 Accepts]: Start accepts. Automaton has 192297 states and 834097 transitions. Word has length 141 [2022-03-03 17:20:35,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:35,974 INFO L470 AbstractCegarLoop]: Abstraction has 192297 states and 834097 transitions. [2022-03-03 17:20:35,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:35,974 INFO L276 IsEmpty]: Start isEmpty. Operand 192297 states and 834097 transitions. [2022-03-03 17:20:37,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:20:37,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:37,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:37,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-03 17:20:37,065 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:20:37,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:37,066 INFO L85 PathProgramCache]: Analyzing trace with hash -149484903, now seen corresponding path program 20 times [2022-03-03 17:20:37,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:37,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150445587] [2022-03-03 17:20:37,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:37,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:37,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:37,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150445587] [2022-03-03 17:20:37,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150445587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:20:37,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:20:37,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:20:37,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099542721] [2022-03-03 17:20:37,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:20:37,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:20:37,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:37,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:20:37,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:20:37,154 INFO L87 Difference]: Start difference. First operand 192297 states and 834097 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:40,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:40,938 INFO L93 Difference]: Finished difference Result 328671 states and 1419449 transitions. [2022-03-03 17:20:40,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:20:40,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 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 141 [2022-03-03 17:20:40,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:45,024 INFO L225 Difference]: With dead ends: 328671 [2022-03-03 17:20:45,024 INFO L226 Difference]: Without dead ends: 320565 [2022-03-03 17:20:45,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:20:45,026 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 272 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:45,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 1067 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:20:45,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320565 states. [2022-03-03 17:20:54,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320565 to 181593. [2022-03-03 17:20:55,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181593 states, 181592 states have (on average 4.293718886294551) internal successors, (779705), 181592 states have internal predecessors, (779705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:56,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181593 states to 181593 states and 779705 transitions. [2022-03-03 17:20:56,787 INFO L78 Accepts]: Start accepts. Automaton has 181593 states and 779705 transitions. Word has length 141 [2022-03-03 17:20:56,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:56,787 INFO L470 AbstractCegarLoop]: Abstraction has 181593 states and 779705 transitions. [2022-03-03 17:20:56,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:56,787 INFO L276 IsEmpty]: Start isEmpty. Operand 181593 states and 779705 transitions. [2022-03-03 17:20:57,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:20:57,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:57,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:57,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-03 17:20:57,909 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:20:57,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:57,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1690572185, now seen corresponding path program 21 times [2022-03-03 17:20:57,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:57,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886309191] [2022-03-03 17:20:57,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:57,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:58,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:58,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:58,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886309191] [2022-03-03 17:20:58,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886309191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:20:58,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:20:58,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:20:58,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35366643] [2022-03-03 17:20:58,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:20:58,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:20:58,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:58,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:20:58,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:20:58,048 INFO L87 Difference]: Start difference. First operand 181593 states and 779705 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:01,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:21:01,507 INFO L93 Difference]: Finished difference Result 302160 states and 1293537 transitions. [2022-03-03 17:21:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:21:01,507 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 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 141 [2022-03-03 17:21:01,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:21:04,744 INFO L225 Difference]: With dead ends: 302160 [2022-03-03 17:21:04,744 INFO L226 Difference]: Without dead ends: 294156 [2022-03-03 17:21:04,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2022-03-03 17:21:04,745 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 556 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:21:04,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 1111 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:21:05,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294156 states. [2022-03-03 17:21:13,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294156 to 182253. [2022-03-03 17:21:13,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182253 states, 182252 states have (on average 4.257281127230428) internal successors, (775898), 182252 states have internal predecessors, (775898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:14,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182253 states to 182253 states and 775898 transitions. [2022-03-03 17:21:14,896 INFO L78 Accepts]: Start accepts. Automaton has 182253 states and 775898 transitions. Word has length 141 [2022-03-03 17:21:14,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:21:14,896 INFO L470 AbstractCegarLoop]: Abstraction has 182253 states and 775898 transitions. [2022-03-03 17:21:14,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:14,897 INFO L276 IsEmpty]: Start isEmpty. Operand 182253 states and 775898 transitions. [2022-03-03 17:21:15,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:21:15,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:21:15,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:21:15,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-03 17:21:15,698 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:21:15,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:21:15,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1816829631, now seen corresponding path program 22 times [2022-03-03 17:21:15,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:21:15,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785190080] [2022-03-03 17:21:15,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:21:15,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:21:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:21:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:21:15,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:21:15,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785190080] [2022-03-03 17:21:15,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785190080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:21:15,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:21:15,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:21:15,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442003621] [2022-03-03 17:21:15,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:21:15,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:21:15,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:21:15,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:21:15,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:21:15,828 INFO L87 Difference]: Start difference. First operand 182253 states and 775898 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:21:19,281 INFO L93 Difference]: Finished difference Result 295053 states and 1260752 transitions. [2022-03-03 17:21:19,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:21:19,282 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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 141 [2022-03-03 17:21:19,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:21:22,668 INFO L225 Difference]: With dead ends: 295053 [2022-03-03 17:21:22,668 INFO L226 Difference]: Without dead ends: 294675 [2022-03-03 17:21:22,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:21:22,669 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 269 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:21:22,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 1348 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:21:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294675 states. [2022-03-03 17:21:31,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294675 to 176052. [2022-03-03 17:21:31,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176052 states, 176051 states have (on average 4.251858836359919) internal successors, (748544), 176051 states have internal predecessors, (748544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:33,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176052 states to 176052 states and 748544 transitions. [2022-03-03 17:21:33,092 INFO L78 Accepts]: Start accepts. Automaton has 176052 states and 748544 transitions. Word has length 141 [2022-03-03 17:21:33,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:21:33,093 INFO L470 AbstractCegarLoop]: Abstraction has 176052 states and 748544 transitions. [2022-03-03 17:21:33,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 176052 states and 748544 transitions. [2022-03-03 17:21:33,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:21:33,895 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:21:33,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:21:33,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-03 17:21:33,896 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:21:33,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:21:33,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1933344687, now seen corresponding path program 23 times [2022-03-03 17:21:33,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:21:33,896 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093290219] [2022-03-03 17:21:33,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:21:33,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:21:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:21:33,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:21:33,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:21:33,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093290219] [2022-03-03 17:21:33,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093290219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:21:33,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:21:33,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:21:33,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788927396] [2022-03-03 17:21:33,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:21:33,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:21:33,966 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:21:33,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:21:33,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:21:33,967 INFO L87 Difference]: Start difference. First operand 176052 states and 748544 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:36,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:21:36,326 INFO L93 Difference]: Finished difference Result 229026 states and 955765 transitions. [2022-03-03 17:21:36,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:21:36,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 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 141 [2022-03-03 17:21:36,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:21:38,121 INFO L225 Difference]: With dead ends: 229026 [2022-03-03 17:21:38,121 INFO L226 Difference]: Without dead ends: 209142 [2022-03-03 17:21:38,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:21:38,122 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 279 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:21:38,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 968 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:21:38,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209142 states. [2022-03-03 17:21:44,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209142 to 122250. [2022-03-03 17:21:44,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122250 states, 122249 states have (on average 4.144058438105833) internal successors, (506607), 122249 states have internal predecessors, (506607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:45,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122250 states to 122250 states and 506607 transitions. [2022-03-03 17:21:45,365 INFO L78 Accepts]: Start accepts. Automaton has 122250 states and 506607 transitions. Word has length 141 [2022-03-03 17:21:45,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:21:45,381 INFO L470 AbstractCegarLoop]: Abstraction has 122250 states and 506607 transitions. [2022-03-03 17:21:45,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:45,381 INFO L276 IsEmpty]: Start isEmpty. Operand 122250 states and 506607 transitions. [2022-03-03 17:21:45,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:21:45,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:21:45,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:21:45,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-03 17:21:45,861 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:21:45,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:21:45,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1136146545, now seen corresponding path program 24 times [2022-03-03 17:21:45,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:21:45,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887314481] [2022-03-03 17:21:45,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:21:45,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:21:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:21:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:21:45,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:21:45,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887314481] [2022-03-03 17:21:45,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887314481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:21:45,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:21:45,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:21:45,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435970711] [2022-03-03 17:21:45,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:21:45,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:21:45,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:21:45,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:21:45,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:21:45,955 INFO L87 Difference]: Start difference. First operand 122250 states and 506607 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:47,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:21:47,641 INFO L93 Difference]: Finished difference Result 161658 states and 672295 transitions. [2022-03-03 17:21:47,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:21:47,642 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 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 141 [2022-03-03 17:21:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:21:48,853 INFO L225 Difference]: With dead ends: 161658 [2022-03-03 17:21:48,853 INFO L226 Difference]: Without dead ends: 161172 [2022-03-03 17:21:48,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=125, Unknown=0, NotChecked=0, Total=210 [2022-03-03 17:21:48,854 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 389 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:21:48,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 1168 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:21:49,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161172 states. [2022-03-03 17:21:52,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161172 to 120180. [2022-03-03 17:21:52,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120180 states, 120179 states have (on average 4.154935554464591) internal successors, (499336), 120179 states have internal predecessors, (499336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:54,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120180 states to 120180 states and 499336 transitions. [2022-03-03 17:21:54,205 INFO L78 Accepts]: Start accepts. Automaton has 120180 states and 499336 transitions. Word has length 141 [2022-03-03 17:21:54,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:21:54,205 INFO L470 AbstractCegarLoop]: Abstraction has 120180 states and 499336 transitions. [2022-03-03 17:21:54,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:54,205 INFO L276 IsEmpty]: Start isEmpty. Operand 120180 states and 499336 transitions. [2022-03-03 17:21:54,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:21:54,684 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:21:54,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:21:54,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-03 17:21:54,689 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:21:54,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:21:54,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1946327095, now seen corresponding path program 25 times [2022-03-03 17:21:54,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:21:54,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698580467] [2022-03-03 17:21:54,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:21:54,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:21:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:21:54,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:21:54,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:21:54,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698580467] [2022-03-03 17:21:54,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698580467] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:21:54,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:21:54,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:21:54,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927672680] [2022-03-03 17:21:54,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:21:54,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:21:54,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:21:54,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:21:54,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:21:54,889 INFO L87 Difference]: Start difference. First operand 120180 states and 499336 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:56,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:21:56,877 INFO L93 Difference]: Finished difference Result 159720 states and 665255 transitions. [2022-03-03 17:21:56,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:21:56,877 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 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 141 [2022-03-03 17:21:56,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:21:58,418 INFO L225 Difference]: With dead ends: 159720 [2022-03-03 17:21:58,418 INFO L226 Difference]: Without dead ends: 159420 [2022-03-03 17:21:58,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=209, Unknown=0, NotChecked=0, Total=342 [2022-03-03 17:21:58,421 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 503 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:21:58,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 1252 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:21:58,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159420 states. [2022-03-03 17:22:02,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159420 to 120228. [2022-03-03 17:22:02,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120228 states, 120227 states have (on average 4.1533682117993465) internal successors, (499347), 120227 states have internal predecessors, (499347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:03,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120228 states to 120228 states and 499347 transitions. [2022-03-03 17:22:03,324 INFO L78 Accepts]: Start accepts. Automaton has 120228 states and 499347 transitions. Word has length 141 [2022-03-03 17:22:03,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:22:03,324 INFO L470 AbstractCegarLoop]: Abstraction has 120228 states and 499347 transitions. [2022-03-03 17:22:03,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:03,324 INFO L276 IsEmpty]: Start isEmpty. Operand 120228 states and 499347 transitions. [2022-03-03 17:22:03,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:22:03,954 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:22:03,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:22:03,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-03 17:22:03,954 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:22:03,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:22:03,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1141577571, now seen corresponding path program 26 times [2022-03-03 17:22:03,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:22:03,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395624046] [2022-03-03 17:22:03,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:22:03,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:22:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:22:04,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:22:04,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:22:04,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395624046] [2022-03-03 17:22:04,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395624046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:22:04,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:22:04,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:22:04,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696526921] [2022-03-03 17:22:04,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:22:04,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:22:04,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:22:04,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:22:04,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:22:04,106 INFO L87 Difference]: Start difference. First operand 120228 states and 499347 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:22:06,177 INFO L93 Difference]: Finished difference Result 210825 states and 881655 transitions. [2022-03-03 17:22:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:22:06,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 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 141 [2022-03-03 17:22:06,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:22:07,708 INFO L225 Difference]: With dead ends: 210825 [2022-03-03 17:22:07,708 INFO L226 Difference]: Without dead ends: 208827 [2022-03-03 17:22:07,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:22:07,714 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 327 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:22:07,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 817 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:22:08,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208827 states. [2022-03-03 17:22:13,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208827 to 125688. [2022-03-03 17:22:13,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125688 states, 125687 states have (on average 4.14522583879001) internal successors, (521001), 125687 states have internal predecessors, (521001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:14,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125688 states to 125688 states and 521001 transitions. [2022-03-03 17:22:14,189 INFO L78 Accepts]: Start accepts. Automaton has 125688 states and 521001 transitions. Word has length 141 [2022-03-03 17:22:14,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:22:14,189 INFO L470 AbstractCegarLoop]: Abstraction has 125688 states and 521001 transitions. [2022-03-03 17:22:14,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:14,189 INFO L276 IsEmpty]: Start isEmpty. Operand 125688 states and 521001 transitions. [2022-03-03 17:22:14,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:22:14,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:22:14,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:22:14,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-03 17:22:14,569 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:22:14,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:22:14,569 INFO L85 PathProgramCache]: Analyzing trace with hash 426694581, now seen corresponding path program 27 times [2022-03-03 17:22:14,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:22:14,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537604785] [2022-03-03 17:22:14,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:22:14,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:22:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:22:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:22:14,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:22:14,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537604785] [2022-03-03 17:22:14,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537604785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:22:14,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:22:14,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:22:14,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159604517] [2022-03-03 17:22:14,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:22:14,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:22:14,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:22:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:22:14,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:22:14,718 INFO L87 Difference]: Start difference. First operand 125688 states and 521001 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:17,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:22:17,184 INFO L93 Difference]: Finished difference Result 218451 states and 904710 transitions. [2022-03-03 17:22:17,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:22:17,184 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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 141 [2022-03-03 17:22:17,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:22:19,109 INFO L225 Difference]: With dead ends: 218451 [2022-03-03 17:22:19,109 INFO L226 Difference]: Without dead ends: 214347 [2022-03-03 17:22:19,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:22:19,109 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 253 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:22:19,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 1044 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:22:19,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214347 states. [2022-03-03 17:22:24,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214347 to 125601. [2022-03-03 17:22:24,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125601 states, 125600 states have (on average 4.13374203821656) internal successors, (519198), 125600 states have internal predecessors, (519198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125601 states to 125601 states and 519198 transitions. [2022-03-03 17:22:25,554 INFO L78 Accepts]: Start accepts. Automaton has 125601 states and 519198 transitions. Word has length 141 [2022-03-03 17:22:25,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:22:25,555 INFO L470 AbstractCegarLoop]: Abstraction has 125601 states and 519198 transitions. [2022-03-03 17:22:25,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:25,555 INFO L276 IsEmpty]: Start isEmpty. Operand 125601 states and 519198 transitions. [2022-03-03 17:22:25,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:22:25,931 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:22:25,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:22:25,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-03 17:22:25,931 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:22:25,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:22:25,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2115452139, now seen corresponding path program 28 times [2022-03-03 17:22:25,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:22:25,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422451922] [2022-03-03 17:22:25,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:22:25,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:22:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:22:26,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:22:26,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:22:26,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422451922] [2022-03-03 17:22:26,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422451922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:22:26,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:22:26,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:22:26,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970493405] [2022-03-03 17:22:26,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:22:26,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:22:26,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:22:26,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:22:26,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:22:26,123 INFO L87 Difference]: Start difference. First operand 125601 states and 519198 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:28,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:22:28,648 INFO L93 Difference]: Finished difference Result 217518 states and 898440 transitions. [2022-03-03 17:22:28,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:22:28,648 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 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 141 [2022-03-03 17:22:28,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:22:30,471 INFO L225 Difference]: With dead ends: 217518 [2022-03-03 17:22:30,472 INFO L226 Difference]: Without dead ends: 214410 [2022-03-03 17:22:30,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-03-03 17:22:30,472 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 302 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:22:30,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1846 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:22:30,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214410 states. [2022-03-03 17:22:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214410 to 125970. [2022-03-03 17:22:35,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125970 states, 125969 states have (on average 4.121172669466297) internal successors, (519140), 125969 states have internal predecessors, (519140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125970 states to 125970 states and 519140 transitions. [2022-03-03 17:22:36,787 INFO L78 Accepts]: Start accepts. Automaton has 125970 states and 519140 transitions. Word has length 141 [2022-03-03 17:22:36,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:22:36,788 INFO L470 AbstractCegarLoop]: Abstraction has 125970 states and 519140 transitions. [2022-03-03 17:22:36,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:36,788 INFO L276 IsEmpty]: Start isEmpty. Operand 125970 states and 519140 transitions. [2022-03-03 17:22:37,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:22:37,526 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:22:37,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:22:37,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-03 17:22:37,527 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:22:37,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:22:37,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1530504529, now seen corresponding path program 29 times [2022-03-03 17:22:37,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:22:37,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734601172] [2022-03-03 17:22:37,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:22:37,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:22:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:22:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:22:37,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:22:37,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734601172] [2022-03-03 17:22:37,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734601172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:22:37,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:22:37,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:22:37,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456453520] [2022-03-03 17:22:37,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:22:37,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:22:37,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:22:37,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:22:37,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:22:37,668 INFO L87 Difference]: Start difference. First operand 125970 states and 519140 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:39,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:22:39,957 INFO L93 Difference]: Finished difference Result 204105 states and 830438 transitions. [2022-03-03 17:22:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:22:39,957 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 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 141 [2022-03-03 17:22:39,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:22:41,841 INFO L225 Difference]: With dead ends: 204105 [2022-03-03 17:22:41,842 INFO L226 Difference]: Without dead ends: 180945 [2022-03-03 17:22:41,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2022-03-03 17:22:41,843 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 447 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:22:41,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 983 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:22:42,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180945 states. [2022-03-03 17:22:45,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180945 to 112194. [2022-03-03 17:22:46,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112194 states, 112193 states have (on average 4.07239310830444) internal successors, (456894), 112193 states have internal predecessors, (456894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:46,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112194 states to 112194 states and 456894 transitions. [2022-03-03 17:22:46,875 INFO L78 Accepts]: Start accepts. Automaton has 112194 states and 456894 transitions. Word has length 141 [2022-03-03 17:22:46,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:22:46,875 INFO L470 AbstractCegarLoop]: Abstraction has 112194 states and 456894 transitions. [2022-03-03 17:22:46,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:46,875 INFO L276 IsEmpty]: Start isEmpty. Operand 112194 states and 456894 transitions. [2022-03-03 17:22:47,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:22:47,551 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:22:47,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:22:47,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-03 17:22:47,551 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:22:47,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:22:47,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1722220939, now seen corresponding path program 30 times [2022-03-03 17:22:47,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:22:47,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849375766] [2022-03-03 17:22:47,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:22:47,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:22:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:22:47,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:22:47,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:22:47,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849375766] [2022-03-03 17:22:47,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849375766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:22:47,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:22:47,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:22:47,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193034061] [2022-03-03 17:22:47,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:22:47,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:22:47,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:22:47,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:22:47,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:22:47,635 INFO L87 Difference]: Start difference. First operand 112194 states and 456894 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:49,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:22:49,228 INFO L93 Difference]: Finished difference Result 152655 states and 621946 transitions. [2022-03-03 17:22:49,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:22:49,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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 141 [2022-03-03 17:22:49,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:22:49,865 INFO L225 Difference]: With dead ends: 152655 [2022-03-03 17:22:49,865 INFO L226 Difference]: Without dead ends: 151521 [2022-03-03 17:22:49,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=103, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:22:49,865 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 296 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:22:49,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 1114 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:22:50,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151521 states. [2022-03-03 17:22:53,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151521 to 106542. [2022-03-03 17:22:53,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106542 states, 106541 states have (on average 4.067166630686778) internal successors, (433320), 106541 states have internal predecessors, (433320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:54,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106542 states to 106542 states and 433320 transitions. [2022-03-03 17:22:54,714 INFO L78 Accepts]: Start accepts. Automaton has 106542 states and 433320 transitions. Word has length 141 [2022-03-03 17:22:54,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:22:54,715 INFO L470 AbstractCegarLoop]: Abstraction has 106542 states and 433320 transitions. [2022-03-03 17:22:54,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 106542 states and 433320 transitions. [2022-03-03 17:22:55,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:22:55,397 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:22:55,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:22:55,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-03 17:22:55,398 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:22:55,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:22:55,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1943886693, now seen corresponding path program 31 times [2022-03-03 17:22:55,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:22:55,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230514239] [2022-03-03 17:22:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:22:55,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:22:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:22:55,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:22:55,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:22:55,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230514239] [2022-03-03 17:22:55,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230514239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:22:55,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:22:55,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:22:55,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028383112] [2022-03-03 17:22:55,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:22:55,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:22:55,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:22:55,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:22:55,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:22:55,491 INFO L87 Difference]: Start difference. First operand 106542 states and 433320 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:22:57,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:22:57,140 INFO L93 Difference]: Finished difference Result 148434 states and 604009 transitions. [2022-03-03 17:22:57,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:22:57,141 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 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 141 [2022-03-03 17:22:57,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:22:57,811 INFO L225 Difference]: With dead ends: 148434 [2022-03-03 17:22:57,811 INFO L226 Difference]: Without dead ends: 145842 [2022-03-03 17:22:57,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=161, Unknown=0, NotChecked=0, Total=272 [2022-03-03 17:22:57,811 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 410 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:22:57,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1253 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:22:58,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145842 states. [2022-03-03 17:23:01,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145842 to 101169. [2022-03-03 17:23:01,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101169 states, 101168 states have (on average 4.059999209236122) internal successors, (410742), 101168 states have internal predecessors, (410742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:02,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101169 states to 101169 states and 410742 transitions. [2022-03-03 17:23:02,884 INFO L78 Accepts]: Start accepts. Automaton has 101169 states and 410742 transitions. Word has length 141 [2022-03-03 17:23:02,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:23:02,884 INFO L470 AbstractCegarLoop]: Abstraction has 101169 states and 410742 transitions. [2022-03-03 17:23:02,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:02,884 INFO L276 IsEmpty]: Start isEmpty. Operand 101169 states and 410742 transitions. [2022-03-03 17:23:03,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:23:03,222 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:23:03,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:23:03,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-03 17:23:03,222 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:23:03,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:23:03,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1642723309, now seen corresponding path program 32 times [2022-03-03 17:23:03,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:23:03,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116485683] [2022-03-03 17:23:03,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:23:03,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:23:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:23:03,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:23:03,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:23:03,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116485683] [2022-03-03 17:23:03,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116485683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:23:03,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:23:03,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:23:03,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631923482] [2022-03-03 17:23:03,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:23:03,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:23:03,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:23:03,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:23:03,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:23:03,376 INFO L87 Difference]: Start difference. First operand 101169 states and 410742 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:05,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:23:05,351 INFO L93 Difference]: Finished difference Result 166587 states and 680401 transitions. [2022-03-03 17:23:05,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:23:05,351 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 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 141 [2022-03-03 17:23:05,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:23:06,419 INFO L225 Difference]: With dead ends: 166587 [2022-03-03 17:23:06,419 INFO L226 Difference]: Without dead ends: 164271 [2022-03-03 17:23:06,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2022-03-03 17:23:06,420 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 305 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:23:06,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 2156 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:23:06,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164271 states. [2022-03-03 17:23:10,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164271 to 99009. [2022-03-03 17:23:10,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99009 states, 99008 states have (on average 4.07112556561086) internal successors, (403074), 99008 states have internal predecessors, (403074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:10,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99009 states to 99009 states and 403074 transitions. [2022-03-03 17:23:10,996 INFO L78 Accepts]: Start accepts. Automaton has 99009 states and 403074 transitions. Word has length 141 [2022-03-03 17:23:10,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:23:10,996 INFO L470 AbstractCegarLoop]: Abstraction has 99009 states and 403074 transitions. [2022-03-03 17:23:10,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:10,997 INFO L276 IsEmpty]: Start isEmpty. Operand 99009 states and 403074 transitions. [2022-03-03 17:23:11,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 17:23:11,262 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:23:11,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:23:11,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-03 17:23:11,262 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-03 17:23:11,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:23:11,262 INFO L85 PathProgramCache]: Analyzing trace with hash -832542759, now seen corresponding path program 33 times [2022-03-03 17:23:11,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:23:11,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723391698] [2022-03-03 17:23:11,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:23:11,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:23:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:23:11,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:23:11,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:23:11,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723391698] [2022-03-03 17:23:11,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723391698] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:23:11,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:23:11,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:23:11,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028805920] [2022-03-03 17:23:11,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:23:11,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:23:11,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:23:11,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:23:11,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:23:11,359 INFO L87 Difference]: Start difference. First operand 99009 states and 403074 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:13,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:23:13,162 INFO L93 Difference]: Finished difference Result 137493 states and 560431 transitions. [2022-03-03 17:23:13,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 17:23:13,163 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 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 141 [2022-03-03 17:23:13,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:23:14,293 INFO L225 Difference]: With dead ends: 137493 [2022-03-03 17:23:14,294 INFO L226 Difference]: Without dead ends: 133545 [2022-03-03 17:23:14,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=208, Invalid=344, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:23:14,294 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 576 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:23:14,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [576 Valid, 1799 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:23:14,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133545 states. Received shutdown request... [2022-03-03 17:23:16,944 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 17:23:17,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133545 to 96933. [2022-03-03 17:23:17,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96933 states, 96932 states have (on average 4.088773573226592) internal successors, (396333), 96932 states have internal predecessors, (396333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:17,376 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-03-03 17:23:17,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-03 17:23:17,377 WARN L594 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2022-03-03 17:23:17,379 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 6 remaining) [2022-03-03 17:23:17,379 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 6 remaining) [2022-03-03 17:23:17,379 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 6 remaining) [2022-03-03 17:23:17,379 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 6 remaining) [2022-03-03 17:23:17,379 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATION (0 of 6 remaining) [2022-03-03 17:23:17,381 INFO L732 BasicCegarLoop]: Path program histogram: [33] [2022-03-03 17:23:17,383 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 17:23:17,383 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 17:23:17,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 05:23:17 BasicIcfg [2022-03-03 17:23:17,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 17:23:17,385 INFO L158 Benchmark]: Toolchain (without parser) took 539543.48ms. Allocated memory was 178.3MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 120.2MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2022-03-03 17:23:17,385 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 17:23:17,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.50ms. Allocated memory was 178.3MB in the beginning and 215.0MB in the end (delta: 36.7MB). Free memory was 120.1MB in the beginning and 184.2MB in the end (delta: -64.1MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-03-03 17:23:17,385 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.32ms. Allocated memory is still 215.0MB. Free memory was 184.2MB in the beginning and 182.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 17:23:17,385 INFO L158 Benchmark]: Boogie Preprocessor took 18.52ms. Allocated memory is still 215.0MB. Free memory was 182.1MB in the beginning and 180.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 17:23:17,385 INFO L158 Benchmark]: RCFGBuilder took 535.64ms. Allocated memory is still 215.0MB. Free memory was 180.5MB in the beginning and 158.5MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-03-03 17:23:17,385 INFO L158 Benchmark]: TraceAbstraction took 538712.31ms. Allocated memory was 215.0MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 158.0MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2022-03-03 17:23:17,386 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 178.3MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 226.50ms. Allocated memory was 178.3MB in the beginning and 215.0MB in the end (delta: 36.7MB). Free memory was 120.1MB in the beginning and 184.2MB in the end (delta: -64.1MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.32ms. Allocated memory is still 215.0MB. Free memory was 184.2MB in the beginning and 182.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.52ms. Allocated memory is still 215.0MB. Free memory was 182.1MB in the beginning and 180.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 535.64ms. Allocated memory is still 215.0MB. Free memory was 180.5MB in the beginning and 158.5MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 538712.31ms. Allocated memory was 215.0MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 158.0MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 3.8GB. 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 - TimeoutResultAtElement [Line: 168]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 160]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 156]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 158]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 205 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 538.6s, OverallIterations: 33, TraceHistogramMax: 1, PathProgramHistogramMax: 33, EmptinessCheckTime: 25.6s, AutomataDifference: 197.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10968 SdHoareTripleChecker+Valid, 9.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10968 mSDsluCounter, 35701 SdHoareTripleChecker+Invalid, 6.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31068 mSDsCounter, 1533 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15362 IncrementalHoareTripleChecker+Invalid, 16895 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1533 mSolverCounterUnsat, 7916 mSDtfsCounter, 15362 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 476 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 387 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227658occurred in iteration=11, InterpolantAutomatonStates: 359, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 305.5s AutomataMinimizationTime, 33 MinimizatonAttempts, 2971415 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 4653 NumberOfCodeBlocks, 4653 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 4620 ConstructedInterpolants, 0 QuantifiedInterpolants, 14109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 33 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown