/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-bakery-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-15 11:32:40,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 11:32:40,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 11:32:40,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 11:32:40,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 11:32:40,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 11:32:40,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 11:32:40,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-15 11:32:40,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 11:32:40,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 11:32:40,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-15 11:32:40,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-15 11:32:40,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-15 11:32:40,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-15 11:32:40,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-15 11:32:40,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-15 11:32:40,326 INFO L138 SettingsManager]: * Use SBE=true [2022-02-15 11:32:40,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 11:32:40,326 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 11:32:40,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 11:32:40,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 11:32:40,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 11:32:40,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 11:32:40,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 11:32:40,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 11:32:40,327 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 11:32:40,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 11:32:40,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 11:32:40,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 11:32:40,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 11:32:40,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 11:32:40,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 11:32:40,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 11:32:40,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 11:32:40,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 11:32:40,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-15 11:32:40,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-15 11:32:40,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 11:32:40,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-15 11:32:40,328 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-15 11:32:40,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 11:32:40,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-15 11:32:40,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 11:32:40,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 11:32:40,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 11:32:40,538 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 11:32:40,539 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 11:32:40,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-02-15 11:32:40,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bf2e302f/f7a05ea791e74a5285826286f41023b6/FLAG355410f67 [2022-02-15 11:32:40,932 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 11:32:40,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-02-15 11:32:40,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bf2e302f/f7a05ea791e74a5285826286f41023b6/FLAG355410f67 [2022-02-15 11:32:40,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bf2e302f/f7a05ea791e74a5285826286f41023b6 [2022-02-15 11:32:40,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 11:32:40,953 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 11:32:40,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 11:32:40,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 11:32:40,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 11:32:40,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:32:40" (1/1) ... [2022-02-15 11:32:40,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9c35cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:40, skipping insertion in model container [2022-02-15 11:32:40,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:32:40" (1/1) ... [2022-02-15 11:32:40,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 11:32:40,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 11:32:41,153 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-bakery-3.wvr.c[5426,5439] [2022-02-15 11:32:41,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 11:32:41,161 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 11:32:41,189 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-bakery-3.wvr.c[5426,5439] [2022-02-15 11:32:41,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 11:32:41,199 INFO L208 MainTranslator]: Completed translation [2022-02-15 11:32:41,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41 WrapperNode [2022-02-15 11:32:41,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 11:32:41,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-15 11:32:41,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-15 11:32:41,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-15 11:32:41,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41" (1/1) ... [2022-02-15 11:32:41,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41" (1/1) ... [2022-02-15 11:32:41,249 INFO L137 Inliner]: procedures = 22, calls = 110, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 279 [2022-02-15 11:32:41,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-15 11:32:41,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 11:32:41,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 11:32:41,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 11:32:41,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41" (1/1) ... [2022-02-15 11:32:41,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41" (1/1) ... [2022-02-15 11:32:41,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41" (1/1) ... [2022-02-15 11:32:41,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41" (1/1) ... [2022-02-15 11:32:41,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41" (1/1) ... [2022-02-15 11:32:41,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41" (1/1) ... [2022-02-15 11:32:41,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41" (1/1) ... [2022-02-15 11:32:41,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 11:32:41,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 11:32:41,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 11:32:41,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 11:32:41,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41" (1/1) ... [2022-02-15 11:32:41,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 11:32:41,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 11:32:41,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 11:32:41,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 11:32:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 11:32:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-15 11:32:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-15 11:32:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-15 11:32:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-15 11:32:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-15 11:32:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-15 11:32:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 11:32:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-15 11:32:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 11:32:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-15 11:32:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-15 11:32:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 11:32:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 11:32:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 11:32:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 11:32:41,346 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-15 11:32:41,403 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 11:32:41,404 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 11:32:41,721 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 11:32:41,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 11:32:41,858 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-15 11:32:41,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:32:41 BoogieIcfgContainer [2022-02-15 11:32:41,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 11:32:41,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 11:32:41,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 11:32:41,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 11:32:41,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 11:32:40" (1/3) ... [2022-02-15 11:32:41,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b95089f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:32:41, skipping insertion in model container [2022-02-15 11:32:41,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:32:41" (2/3) ... [2022-02-15 11:32:41,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b95089f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:32:41, skipping insertion in model container [2022-02-15 11:32:41,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:32:41" (3/3) ... [2022-02-15 11:32:41,867 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2022-02-15 11:32:41,870 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-15 11:32:41,870 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-15 11:32:41,871 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 11:32:41,871 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-15 11:32:41,911 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,911 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,911 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,911 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,912 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,912 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,912 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,912 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,912 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,912 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,916 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,917 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,918 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,919 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,919 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,921 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,921 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,922 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,922 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,922 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,922 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,922 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,923 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,924 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,924 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,924 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,924 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,925 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,925 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,926 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,926 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,927 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,927 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,927 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,927 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,927 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,927 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,928 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,928 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,928 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,928 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,929 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,929 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,929 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,929 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,930 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,930 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,930 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,930 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,934 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,934 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,935 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,936 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,936 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,939 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,946 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,946 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,946 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,946 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,946 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,946 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,947 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:32:41,952 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-15 11:32:41,989 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 11:32:42,000 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 [2022-02-15 11:32:42,000 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-15 11:32:42,008 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 160 places, 152 transitions, 328 flow [2022-02-15 11:32:42,456 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:42,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:42,624 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:42,624 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] [2022-02-15 11:32:42,625 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:42,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:42,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1965078490, now seen corresponding path program 1 times [2022-02-15 11:32:42,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:42,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698846014] [2022-02-15 11:32:42,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:42,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:43,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:43,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698846014] [2022-02-15 11:32:43,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698846014] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:43,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:43,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 11:32:43,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328319214] [2022-02-15 11:32:43,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:43,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 11:32:43,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:43,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 11:32:43,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:32:43,090 INFO L87 Difference]: Start difference. First operand has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 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 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:43,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:43,371 INFO L93 Difference]: Finished difference Result 15733 states and 53560 transitions. [2022-02-15 11:32:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 11:32:43,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 134 [2022-02-15 11:32:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:43,524 INFO L225 Difference]: With dead ends: 15733 [2022-02-15 11:32:43,524 INFO L226 Difference]: Without dead ends: 15731 [2022-02-15 11:32:43,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:32:43,529 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 31 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:43,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 240 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:43,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15731 states. [2022-02-15 11:32:44,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15731 to 15731. [2022-02-15 11:32:44,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15731 states, 15730 states have (on average 3.4048315321042595) internal successors, (53558), 15730 states have internal predecessors, (53558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:44,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15731 states to 15731 states and 53558 transitions. [2022-02-15 11:32:44,197 INFO L78 Accepts]: Start accepts. Automaton has 15731 states and 53558 transitions. Word has length 134 [2022-02-15 11:32:44,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:44,199 INFO L470 AbstractCegarLoop]: Abstraction has 15731 states and 53558 transitions. [2022-02-15 11:32:44,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:44,200 INFO L276 IsEmpty]: Start isEmpty. Operand 15731 states and 53558 transitions. [2022-02-15 11:32:44,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:44,364 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:44,364 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] [2022-02-15 11:32:44,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 11:32:44,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:44,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:44,366 INFO L85 PathProgramCache]: Analyzing trace with hash 710948772, now seen corresponding path program 2 times [2022-02-15 11:32:44,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:44,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018823940] [2022-02-15 11:32:44,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:44,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:44,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:44,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018823940] [2022-02-15 11:32:44,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018823940] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:44,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:44,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:32:44,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657976444] [2022-02-15 11:32:44,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:44,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:32:44,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:44,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:32:44,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:32:44,667 INFO L87 Difference]: Start difference. First operand 15731 states and 53558 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:45,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:45,232 INFO L93 Difference]: Finished difference Result 18843 states and 63888 transitions. [2022-02-15 11:32:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:32:45,232 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:32:45,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:45,301 INFO L225 Difference]: With dead ends: 18843 [2022-02-15 11:32:45,301 INFO L226 Difference]: Without dead ends: 18843 [2022-02-15 11:32:45,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-02-15 11:32:45,302 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 329 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:45,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 945 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:32:45,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18843 states. [2022-02-15 11:32:45,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18843 to 17183. [2022-02-15 11:32:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17183 states, 17182 states have (on average 3.3803980910254916) internal successors, (58082), 17182 states have internal predecessors, (58082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17183 states to 17183 states and 58082 transitions. [2022-02-15 11:32:45,840 INFO L78 Accepts]: Start accepts. Automaton has 17183 states and 58082 transitions. Word has length 134 [2022-02-15 11:32:45,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:45,841 INFO L470 AbstractCegarLoop]: Abstraction has 17183 states and 58082 transitions. [2022-02-15 11:32:45,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:45,841 INFO L276 IsEmpty]: Start isEmpty. Operand 17183 states and 58082 transitions. [2022-02-15 11:32:45,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:45,887 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:45,888 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] [2022-02-15 11:32:45,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 11:32:45,888 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:45,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash -932759446, now seen corresponding path program 3 times [2022-02-15 11:32:45,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:45,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698257399] [2022-02-15 11:32:45,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:45,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:46,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:46,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:46,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698257399] [2022-02-15 11:32:46,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698257399] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:46,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:46,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:32:46,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559589554] [2022-02-15 11:32:46,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:46,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:32:46,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:46,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:32:46,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:32:46,050 INFO L87 Difference]: Start difference. First operand 17183 states and 58082 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:46,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:46,734 INFO L93 Difference]: Finished difference Result 24096 states and 79387 transitions. [2022-02-15 11:32:46,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:32:46,735 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:32:46,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:46,835 INFO L225 Difference]: With dead ends: 24096 [2022-02-15 11:32:46,835 INFO L226 Difference]: Without dead ends: 22809 [2022-02-15 11:32:46,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:32:46,842 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 562 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:46,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 1797 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 11:32:46,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22809 states. [2022-02-15 11:32:47,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22809 to 17367. [2022-02-15 11:32:47,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17367 states, 17366 states have (on average 3.3700333985949555) internal successors, (58524), 17366 states have internal predecessors, (58524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:47,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17367 states to 17367 states and 58524 transitions. [2022-02-15 11:32:47,548 INFO L78 Accepts]: Start accepts. Automaton has 17367 states and 58524 transitions. Word has length 134 [2022-02-15 11:32:47,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:47,549 INFO L470 AbstractCegarLoop]: Abstraction has 17367 states and 58524 transitions. [2022-02-15 11:32:47,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:47,549 INFO L276 IsEmpty]: Start isEmpty. Operand 17367 states and 58524 transitions. [2022-02-15 11:32:47,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:47,584 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:47,585 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] [2022-02-15 11:32:47,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 11:32:47,585 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash 607818392, now seen corresponding path program 4 times [2022-02-15 11:32:47,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:47,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003912622] [2022-02-15 11:32:47,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:47,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:47,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:47,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:47,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003912622] [2022-02-15 11:32:47,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003912622] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:47,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:47,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:32:47,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327656592] [2022-02-15 11:32:47,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:47,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:32:47,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:47,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:32:47,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:32:47,825 INFO L87 Difference]: Start difference. First operand 17367 states and 58524 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:48,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:48,311 INFO L93 Difference]: Finished difference Result 23297 states and 78780 transitions. [2022-02-15 11:32:48,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:32:48,311 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:32:48,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:48,394 INFO L225 Difference]: With dead ends: 23297 [2022-02-15 11:32:48,395 INFO L226 Difference]: Without dead ends: 21811 [2022-02-15 11:32:48,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:32:48,396 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 160 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:48,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1105 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:32:48,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21811 states. [2022-02-15 11:32:48,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21811 to 17115. [2022-02-15 11:32:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17115 states, 17114 states have (on average 3.3658992637606637) internal successors, (57604), 17114 states have internal predecessors, (57604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:48,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17115 states to 17115 states and 57604 transitions. [2022-02-15 11:32:48,916 INFO L78 Accepts]: Start accepts. Automaton has 17115 states and 57604 transitions. Word has length 134 [2022-02-15 11:32:48,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:48,916 INFO L470 AbstractCegarLoop]: Abstraction has 17115 states and 57604 transitions. [2022-02-15 11:32:48,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:48,916 INFO L276 IsEmpty]: Start isEmpty. Operand 17115 states and 57604 transitions. [2022-02-15 11:32:48,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:48,954 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:48,954 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] [2022-02-15 11:32:48,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 11:32:48,954 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:48,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:48,955 INFO L85 PathProgramCache]: Analyzing trace with hash 939090806, now seen corresponding path program 5 times [2022-02-15 11:32:48,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:48,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356365954] [2022-02-15 11:32:48,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:48,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:49,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:49,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:49,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356365954] [2022-02-15 11:32:49,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356365954] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:49,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:49,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:32:49,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338913909] [2022-02-15 11:32:49,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:49,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:32:49,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:49,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:32:49,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:32:49,191 INFO L87 Difference]: Start difference. First operand 17115 states and 57604 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:49,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:49,689 INFO L93 Difference]: Finished difference Result 20679 states and 69425 transitions. [2022-02-15 11:32:49,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:32:49,690 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:32:49,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:49,756 INFO L225 Difference]: With dead ends: 20679 [2022-02-15 11:32:49,757 INFO L226 Difference]: Without dead ends: 20095 [2022-02-15 11:32:49,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:49,757 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 203 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:49,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1038 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:32:49,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20095 states. [2022-02-15 11:32:50,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20095 to 17291. [2022-02-15 11:32:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17291 states, 17290 states have (on average 3.364488143435512) internal successors, (58172), 17290 states have internal predecessors, (58172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17291 states to 17291 states and 58172 transitions. [2022-02-15 11:32:50,173 INFO L78 Accepts]: Start accepts. Automaton has 17291 states and 58172 transitions. Word has length 134 [2022-02-15 11:32:50,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:50,173 INFO L470 AbstractCegarLoop]: Abstraction has 17291 states and 58172 transitions. [2022-02-15 11:32:50,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 17291 states and 58172 transitions. [2022-02-15 11:32:50,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:50,208 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:50,208 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] [2022-02-15 11:32:50,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 11:32:50,209 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:50,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:50,209 INFO L85 PathProgramCache]: Analyzing trace with hash -630940832, now seen corresponding path program 6 times [2022-02-15 11:32:50,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:50,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356980902] [2022-02-15 11:32:50,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:50,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:50,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:50,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:50,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356980902] [2022-02-15 11:32:50,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356980902] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:50,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:50,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:32:50,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969879482] [2022-02-15 11:32:50,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:50,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:32:50,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:50,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:32:50,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:32:50,433 INFO L87 Difference]: Start difference. First operand 17291 states and 58172 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:51,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:51,012 INFO L93 Difference]: Finished difference Result 36182 states and 124131 transitions. [2022-02-15 11:32:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:32:51,012 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:32:51,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:51,151 INFO L225 Difference]: With dead ends: 36182 [2022-02-15 11:32:51,152 INFO L226 Difference]: Without dead ends: 35196 [2022-02-15 11:32:51,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:32:51,154 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 389 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:51,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 750 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:32:51,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35196 states. [2022-02-15 11:32:51,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35196 to 17761. [2022-02-15 11:32:51,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17761 states, 17760 states have (on average 3.3545045045045043) internal successors, (59576), 17760 states have internal predecessors, (59576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17761 states to 17761 states and 59576 transitions. [2022-02-15 11:32:51,783 INFO L78 Accepts]: Start accepts. Automaton has 17761 states and 59576 transitions. Word has length 134 [2022-02-15 11:32:51,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:51,783 INFO L470 AbstractCegarLoop]: Abstraction has 17761 states and 59576 transitions. [2022-02-15 11:32:51,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:51,783 INFO L276 IsEmpty]: Start isEmpty. Operand 17761 states and 59576 transitions. [2022-02-15 11:32:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:51,947 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:51,947 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] [2022-02-15 11:32:51,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 11:32:51,947 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:51,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:51,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1577188288, now seen corresponding path program 7 times [2022-02-15 11:32:51,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:51,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588185539] [2022-02-15 11:32:51,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:51,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:52,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:52,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:52,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588185539] [2022-02-15 11:32:52,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588185539] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:52,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:52,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:32:52,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696047099] [2022-02-15 11:32:52,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:52,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:32:52,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:52,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:32:52,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:32:52,118 INFO L87 Difference]: Start difference. First operand 17761 states and 59576 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:52,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:52,734 INFO L93 Difference]: Finished difference Result 31299 states and 105782 transitions. [2022-02-15 11:32:52,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:32:52,734 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:32:52,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:52,962 INFO L225 Difference]: With dead ends: 31299 [2022-02-15 11:32:52,962 INFO L226 Difference]: Without dead ends: 31299 [2022-02-15 11:32:52,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-02-15 11:32:52,963 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 339 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:52,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 1507 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 11:32:53,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31299 states. [2022-02-15 11:32:53,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31299 to 19621. [2022-02-15 11:32:53,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19621 states, 19620 states have (on average 3.3579510703363913) internal successors, (65883), 19620 states have internal predecessors, (65883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:53,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19621 states to 19621 states and 65883 transitions. [2022-02-15 11:32:53,490 INFO L78 Accepts]: Start accepts. Automaton has 19621 states and 65883 transitions. Word has length 134 [2022-02-15 11:32:53,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:53,490 INFO L470 AbstractCegarLoop]: Abstraction has 19621 states and 65883 transitions. [2022-02-15 11:32:53,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:53,491 INFO L276 IsEmpty]: Start isEmpty. Operand 19621 states and 65883 transitions. [2022-02-15 11:32:53,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:53,523 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:53,523 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] [2022-02-15 11:32:53,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 11:32:53,523 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:53,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:53,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1664706560, now seen corresponding path program 8 times [2022-02-15 11:32:53,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:53,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722301052] [2022-02-15 11:32:53,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:53,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:53,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:53,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:53,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722301052] [2022-02-15 11:32:53,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722301052] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:53,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:53,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:32:53,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946852552] [2022-02-15 11:32:53,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:53,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:32:53,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:53,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:32:53,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:32:53,660 INFO L87 Difference]: Start difference. First operand 19621 states and 65883 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:54,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:54,297 INFO L93 Difference]: Finished difference Result 26616 states and 87632 transitions. [2022-02-15 11:32:54,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:32:54,298 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:32:54,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:54,516 INFO L225 Difference]: With dead ends: 26616 [2022-02-15 11:32:54,516 INFO L226 Difference]: Without dead ends: 24830 [2022-02-15 11:32:54,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:32:54,518 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 474 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:54,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2038 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 11:32:54,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24830 states. [2022-02-15 11:32:55,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24830 to 19205. [2022-02-15 11:32:55,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19205 states, 19204 states have (on average 3.3444594876067484) internal successors, (64227), 19204 states have internal predecessors, (64227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:55,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19205 states to 19205 states and 64227 transitions. [2022-02-15 11:32:55,133 INFO L78 Accepts]: Start accepts. Automaton has 19205 states and 64227 transitions. Word has length 134 [2022-02-15 11:32:55,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:55,133 INFO L470 AbstractCegarLoop]: Abstraction has 19205 states and 64227 transitions. [2022-02-15 11:32:55,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:55,133 INFO L276 IsEmpty]: Start isEmpty. Operand 19205 states and 64227 transitions. [2022-02-15 11:32:55,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:55,166 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:55,167 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] [2022-02-15 11:32:55,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 11:32:55,167 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:55,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:55,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1687426236, now seen corresponding path program 9 times [2022-02-15 11:32:55,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:55,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620069957] [2022-02-15 11:32:55,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:55,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:55,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:55,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:55,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620069957] [2022-02-15 11:32:55,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620069957] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:55,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:55,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:32:55,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885129648] [2022-02-15 11:32:55,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:55,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:32:55,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:55,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:32:55,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:32:55,322 INFO L87 Difference]: Start difference. First operand 19205 states and 64227 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:56,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:56,102 INFO L93 Difference]: Finished difference Result 37659 states and 127487 transitions. [2022-02-15 11:32:56,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:32:56,102 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:32:56,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:56,215 INFO L225 Difference]: With dead ends: 37659 [2022-02-15 11:32:56,215 INFO L226 Difference]: Without dead ends: 37113 [2022-02-15 11:32:56,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-02-15 11:32:56,217 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 392 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:56,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 1323 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 11:32:56,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37113 states. [2022-02-15 11:32:56,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37113 to 20699. [2022-02-15 11:32:56,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20699 states, 20698 states have (on average 3.3450091796308823) internal successors, (69235), 20698 states have internal predecessors, (69235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:56,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20699 states to 20699 states and 69235 transitions. [2022-02-15 11:32:56,791 INFO L78 Accepts]: Start accepts. Automaton has 20699 states and 69235 transitions. Word has length 134 [2022-02-15 11:32:56,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:56,792 INFO L470 AbstractCegarLoop]: Abstraction has 20699 states and 69235 transitions. [2022-02-15 11:32:56,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:56,792 INFO L276 IsEmpty]: Start isEmpty. Operand 20699 states and 69235 transitions. [2022-02-15 11:32:56,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:56,826 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:56,826 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] [2022-02-15 11:32:56,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 11:32:56,826 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:56,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:56,827 INFO L85 PathProgramCache]: Analyzing trace with hash -626810890, now seen corresponding path program 10 times [2022-02-15 11:32:56,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:56,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137069989] [2022-02-15 11:32:56,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:56,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:56,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:56,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:56,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137069989] [2022-02-15 11:32:56,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137069989] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:56,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:56,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:32:56,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910749543] [2022-02-15 11:32:56,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:56,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:32:56,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:56,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:32:56,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:32:56,986 INFO L87 Difference]: Start difference. First operand 20699 states and 69235 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:57,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:57,591 INFO L93 Difference]: Finished difference Result 30473 states and 102576 transitions. [2022-02-15 11:32:57,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:32:57,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:32:57,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:57,677 INFO L225 Difference]: With dead ends: 30473 [2022-02-15 11:32:57,677 INFO L226 Difference]: Without dead ends: 30473 [2022-02-15 11:32:57,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:32:57,679 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 242 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:57,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 836 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:32:57,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30473 states. [2022-02-15 11:32:58,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30473 to 22523. [2022-02-15 11:32:58,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22523 states, 22522 states have (on average 3.3483260811650832) internal successors, (75411), 22522 states have internal predecessors, (75411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:58,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22523 states to 22523 states and 75411 transitions. [2022-02-15 11:32:58,309 INFO L78 Accepts]: Start accepts. Automaton has 22523 states and 75411 transitions. Word has length 134 [2022-02-15 11:32:58,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:58,310 INFO L470 AbstractCegarLoop]: Abstraction has 22523 states and 75411 transitions. [2022-02-15 11:32:58,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:58,310 INFO L276 IsEmpty]: Start isEmpty. Operand 22523 states and 75411 transitions. [2022-02-15 11:32:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:58,363 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:58,363 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] [2022-02-15 11:32:58,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 11:32:58,363 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:58,363 INFO L85 PathProgramCache]: Analyzing trace with hash 2039189400, now seen corresponding path program 11 times [2022-02-15 11:32:58,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:58,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623075928] [2022-02-15 11:32:58,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:58,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:58,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:58,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:58,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623075928] [2022-02-15 11:32:58,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623075928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:58,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:58,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:32:58,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935205591] [2022-02-15 11:32:58,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:58,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:32:58,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:58,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:32:58,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:32:58,599 INFO L87 Difference]: Start difference. First operand 22523 states and 75411 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:59,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:59,253 INFO L93 Difference]: Finished difference Result 30011 states and 100905 transitions. [2022-02-15 11:32:59,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 11:32:59,253 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:32:59,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:59,322 INFO L225 Difference]: With dead ends: 30011 [2022-02-15 11:32:59,323 INFO L226 Difference]: Without dead ends: 29219 [2022-02-15 11:32:59,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-02-15 11:32:59,329 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 334 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:59,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1259 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:32:59,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29219 states. [2022-02-15 11:32:59,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29219 to 23555. [2022-02-15 11:32:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23555 states, 23554 states have (on average 3.3540375307803347) internal successors, (79001), 23554 states have internal predecessors, (79001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23555 states to 23555 states and 79001 transitions. [2022-02-15 11:32:59,883 INFO L78 Accepts]: Start accepts. Automaton has 23555 states and 79001 transitions. Word has length 134 [2022-02-15 11:32:59,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:59,883 INFO L470 AbstractCegarLoop]: Abstraction has 23555 states and 79001 transitions. [2022-02-15 11:32:59,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:59,884 INFO L276 IsEmpty]: Start isEmpty. Operand 23555 states and 79001 transitions. [2022-02-15 11:32:59,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:32:59,922 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:59,922 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] [2022-02-15 11:32:59,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 11:32:59,922 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:32:59,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:59,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1008836628, now seen corresponding path program 12 times [2022-02-15 11:32:59,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:59,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077300625] [2022-02-15 11:32:59,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:59,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:00,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:00,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:00,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077300625] [2022-02-15 11:33:00,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077300625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:00,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:00,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:33:00,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951375846] [2022-02-15 11:33:00,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:00,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:33:00,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:00,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:33:00,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:33:00,109 INFO L87 Difference]: Start difference. First operand 23555 states and 79001 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:00,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:00,640 INFO L93 Difference]: Finished difference Result 26969 states and 90138 transitions. [2022-02-15 11:33:00,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:33:00,640 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:00,717 INFO L225 Difference]: With dead ends: 26969 [2022-02-15 11:33:00,717 INFO L226 Difference]: Without dead ends: 25605 [2022-02-15 11:33:00,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:00,718 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 162 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:00,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 936 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:00,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25605 states. [2022-02-15 11:33:01,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25605 to 24039. [2022-02-15 11:33:01,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24039 states, 24038 states have (on average 3.3512771445211746) internal successors, (80558), 24038 states have internal predecessors, (80558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:01,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24039 states to 24039 states and 80558 transitions. [2022-02-15 11:33:01,434 INFO L78 Accepts]: Start accepts. Automaton has 24039 states and 80558 transitions. Word has length 134 [2022-02-15 11:33:01,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:01,434 INFO L470 AbstractCegarLoop]: Abstraction has 24039 states and 80558 transitions. [2022-02-15 11:33:01,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:01,434 INFO L276 IsEmpty]: Start isEmpty. Operand 24039 states and 80558 transitions. [2022-02-15 11:33:01,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:01,479 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:01,479 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] [2022-02-15 11:33:01,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 11:33:01,479 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:01,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1501924516, now seen corresponding path program 13 times [2022-02-15 11:33:01,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:01,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190624425] [2022-02-15 11:33:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:01,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:01,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:01,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190624425] [2022-02-15 11:33:01,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190624425] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:01,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:01,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:01,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217157892] [2022-02-15 11:33:01,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:01,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:01,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:01,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:01,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:01,644 INFO L87 Difference]: Start difference. First operand 24039 states and 80558 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:02,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:02,238 INFO L93 Difference]: Finished difference Result 24583 states and 82158 transitions. [2022-02-15 11:33:02,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:33:02,239 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:02,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:02,295 INFO L225 Difference]: With dead ends: 24583 [2022-02-15 11:33:02,295 INFO L226 Difference]: Without dead ends: 23999 [2022-02-15 11:33:02,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:02,297 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 200 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:02,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 862 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:02,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23999 states. [2022-02-15 11:33:02,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23999 to 23999. [2022-02-15 11:33:02,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23999 states, 23998 states have (on average 3.3499458288190684) internal successors, (80392), 23998 states have internal predecessors, (80392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:02,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23999 states to 23999 states and 80392 transitions. [2022-02-15 11:33:02,923 INFO L78 Accepts]: Start accepts. Automaton has 23999 states and 80392 transitions. Word has length 134 [2022-02-15 11:33:02,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:02,923 INFO L470 AbstractCegarLoop]: Abstraction has 23999 states and 80392 transitions. [2022-02-15 11:33:02,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:02,923 INFO L276 IsEmpty]: Start isEmpty. Operand 23999 states and 80392 transitions. [2022-02-15 11:33:02,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:02,979 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:02,979 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] [2022-02-15 11:33:02,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 11:33:02,980 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:02,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:02,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1572281214, now seen corresponding path program 14 times [2022-02-15 11:33:02,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:02,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453005566] [2022-02-15 11:33:02,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:02,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:03,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:03,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453005566] [2022-02-15 11:33:03,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453005566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:03,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:03,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:33:03,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119121938] [2022-02-15 11:33:03,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:03,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:33:03,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:03,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:33:03,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:03,183 INFO L87 Difference]: Start difference. First operand 23999 states and 80392 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:03,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:03,546 INFO L93 Difference]: Finished difference Result 24651 states and 82369 transitions. [2022-02-15 11:33:03,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:33:03,546 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:03,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:03,610 INFO L225 Difference]: With dead ends: 24651 [2022-02-15 11:33:03,611 INFO L226 Difference]: Without dead ends: 23903 [2022-02-15 11:33:03,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:03,611 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 223 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:03,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 959 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:03,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23903 states. [2022-02-15 11:33:04,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23903 to 23903. [2022-02-15 11:33:04,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23903 states, 23902 states have (on average 3.351853401389005) internal successors, (80116), 23902 states have internal predecessors, (80116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:04,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23903 states to 23903 states and 80116 transitions. [2022-02-15 11:33:04,407 INFO L78 Accepts]: Start accepts. Automaton has 23903 states and 80116 transitions. Word has length 134 [2022-02-15 11:33:04,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:04,408 INFO L470 AbstractCegarLoop]: Abstraction has 23903 states and 80116 transitions. [2022-02-15 11:33:04,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:04,408 INFO L276 IsEmpty]: Start isEmpty. Operand 23903 states and 80116 transitions. [2022-02-15 11:33:04,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:04,469 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:04,469 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] [2022-02-15 11:33:04,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 11:33:04,470 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:04,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:04,470 INFO L85 PathProgramCache]: Analyzing trace with hash 982480142, now seen corresponding path program 15 times [2022-02-15 11:33:04,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:04,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595660027] [2022-02-15 11:33:04,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:04,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:04,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:04,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595660027] [2022-02-15 11:33:04,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595660027] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:04,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:04,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:04,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596341601] [2022-02-15 11:33:04,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:04,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:04,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:04,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:04,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:04,671 INFO L87 Difference]: Start difference. First operand 23903 states and 80116 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:05,040 INFO L93 Difference]: Finished difference Result 26501 states and 88863 transitions. [2022-02-15 11:33:05,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:33:05,041 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:05,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:05,110 INFO L225 Difference]: With dead ends: 26501 [2022-02-15 11:33:05,110 INFO L226 Difference]: Without dead ends: 25917 [2022-02-15 11:33:05,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:05,113 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:05,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 913 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25917 states. [2022-02-15 11:33:05,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25917 to 23607. [2022-02-15 11:33:05,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23607 states, 23606 states have (on average 3.3546555960349065) internal successors, (79190), 23606 states have internal predecessors, (79190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:05,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23607 states to 23607 states and 79190 transitions. [2022-02-15 11:33:05,744 INFO L78 Accepts]: Start accepts. Automaton has 23607 states and 79190 transitions. Word has length 134 [2022-02-15 11:33:05,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:05,745 INFO L470 AbstractCegarLoop]: Abstraction has 23607 states and 79190 transitions. [2022-02-15 11:33:05,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:05,745 INFO L276 IsEmpty]: Start isEmpty. Operand 23607 states and 79190 transitions. [2022-02-15 11:33:05,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:05,788 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:05,789 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] [2022-02-15 11:33:05,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 11:33:05,789 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:05,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:05,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1060676230, now seen corresponding path program 16 times [2022-02-15 11:33:05,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:05,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439495451] [2022-02-15 11:33:05,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:05,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:06,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:06,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439495451] [2022-02-15 11:33:06,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439495451] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:06,002 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:06,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:33:06,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472174521] [2022-02-15 11:33:06,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:06,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:33:06,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:06,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:33:06,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:06,003 INFO L87 Difference]: Start difference. First operand 23607 states and 79190 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:06,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:06,446 INFO L93 Difference]: Finished difference Result 24259 states and 81167 transitions. [2022-02-15 11:33:06,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:33:06,447 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:06,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:06,518 INFO L225 Difference]: With dead ends: 24259 [2022-02-15 11:33:06,518 INFO L226 Difference]: Without dead ends: 23519 [2022-02-15 11:33:06,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:06,519 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 198 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:06,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 966 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:06,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23519 states. [2022-02-15 11:33:07,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23519 to 23519. [2022-02-15 11:33:07,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23519 states, 23518 states have (on average 3.3552172803809848) internal successors, (78908), 23518 states have internal predecessors, (78908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:07,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23519 states to 23519 states and 78908 transitions. [2022-02-15 11:33:07,123 INFO L78 Accepts]: Start accepts. Automaton has 23519 states and 78908 transitions. Word has length 134 [2022-02-15 11:33:07,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:07,124 INFO L470 AbstractCegarLoop]: Abstraction has 23519 states and 78908 transitions. [2022-02-15 11:33:07,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:07,124 INFO L276 IsEmpty]: Start isEmpty. Operand 23519 states and 78908 transitions. [2022-02-15 11:33:07,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:07,171 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:07,171 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] [2022-02-15 11:33:07,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 11:33:07,171 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:07,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:07,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1095133630, now seen corresponding path program 17 times [2022-02-15 11:33:07,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:07,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759786215] [2022-02-15 11:33:07,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:07,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:07,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:07,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759786215] [2022-02-15 11:33:07,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759786215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:07,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:07,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:07,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903300273] [2022-02-15 11:33:07,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:07,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:07,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:07,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:07,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:07,335 INFO L87 Difference]: Start difference. First operand 23519 states and 78908 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:07,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:07,692 INFO L93 Difference]: Finished difference Result 23691 states and 79385 transitions. [2022-02-15 11:33:07,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:33:07,693 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:07,926 INFO L225 Difference]: With dead ends: 23691 [2022-02-15 11:33:07,926 INFO L226 Difference]: Without dead ends: 23039 [2022-02-15 11:33:07,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:07,928 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 128 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:07,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1126 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:07,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23039 states. [2022-02-15 11:33:08,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23039 to 23039. [2022-02-15 11:33:08,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23039 states, 23038 states have (on average 3.355846861706745) internal successors, (77312), 23038 states have internal predecessors, (77312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:08,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23039 states to 23039 states and 77312 transitions. [2022-02-15 11:33:08,481 INFO L78 Accepts]: Start accepts. Automaton has 23039 states and 77312 transitions. Word has length 134 [2022-02-15 11:33:08,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:08,481 INFO L470 AbstractCegarLoop]: Abstraction has 23039 states and 77312 transitions. [2022-02-15 11:33:08,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:08,481 INFO L276 IsEmpty]: Start isEmpty. Operand 23039 states and 77312 transitions. [2022-02-15 11:33:08,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:08,520 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:08,520 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] [2022-02-15 11:33:08,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 11:33:08,520 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:08,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:08,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1515671700, now seen corresponding path program 18 times [2022-02-15 11:33:08,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:08,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289942052] [2022-02-15 11:33:08,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:08,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:08,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:08,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:08,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289942052] [2022-02-15 11:33:08,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289942052] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:08,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:08,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 11:33:08,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955678302] [2022-02-15 11:33:08,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:08,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 11:33:08,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:08,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 11:33:08,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:33:08,569 INFO L87 Difference]: Start difference. First operand 23039 states and 77312 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:08,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:08,692 INFO L93 Difference]: Finished difference Result 21787 states and 72183 transitions. [2022-02-15 11:33:08,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 11:33:08,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:08,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:08,745 INFO L225 Difference]: With dead ends: 21787 [2022-02-15 11:33:08,745 INFO L226 Difference]: Without dead ends: 21663 [2022-02-15 11:33:08,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:33:08,748 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 27 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:08,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 230 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 11:33:08,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21663 states. [2022-02-15 11:33:09,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21663 to 21663. [2022-02-15 11:33:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21663 states, 21662 states have (on average 3.3174683778044503) internal successors, (71863), 21662 states have internal predecessors, (71863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21663 states to 21663 states and 71863 transitions. [2022-02-15 11:33:09,323 INFO L78 Accepts]: Start accepts. Automaton has 21663 states and 71863 transitions. Word has length 134 [2022-02-15 11:33:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:09,324 INFO L470 AbstractCegarLoop]: Abstraction has 21663 states and 71863 transitions. [2022-02-15 11:33:09,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:09,324 INFO L276 IsEmpty]: Start isEmpty. Operand 21663 states and 71863 transitions. [2022-02-15 11:33:09,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:09,359 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:09,359 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] [2022-02-15 11:33:09,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 11:33:09,360 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:09,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:09,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1915533884, now seen corresponding path program 19 times [2022-02-15 11:33:09,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:09,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881777802] [2022-02-15 11:33:09,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:09,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:09,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:09,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:09,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881777802] [2022-02-15 11:33:09,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881777802] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:09,484 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:09,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:33:09,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808534601] [2022-02-15 11:33:09,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:09,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:33:09,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:09,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:33:09,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:09,485 INFO L87 Difference]: Start difference. First operand 21663 states and 71863 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:10,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:10,053 INFO L93 Difference]: Finished difference Result 28058 states and 91482 transitions. [2022-02-15 11:33:10,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:33:10,054 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:10,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:10,283 INFO L225 Difference]: With dead ends: 28058 [2022-02-15 11:33:10,283 INFO L226 Difference]: Without dead ends: 26163 [2022-02-15 11:33:10,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:33:10,284 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 590 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:10,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 1813 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:10,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26163 states. [2022-02-15 11:33:10,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26163 to 21421. [2022-02-15 11:33:10,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21421 states, 21420 states have (on average 3.306395891690009) internal successors, (70823), 21420 states have internal predecessors, (70823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21421 states to 21421 states and 70823 transitions. [2022-02-15 11:33:10,750 INFO L78 Accepts]: Start accepts. Automaton has 21421 states and 70823 transitions. Word has length 134 [2022-02-15 11:33:10,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:10,751 INFO L470 AbstractCegarLoop]: Abstraction has 21421 states and 70823 transitions. [2022-02-15 11:33:10,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:10,751 INFO L276 IsEmpty]: Start isEmpty. Operand 21421 states and 70823 transitions. [2022-02-15 11:33:10,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:10,929 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:10,929 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] [2022-02-15 11:33:10,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 11:33:10,929 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:10,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:10,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1362014934, now seen corresponding path program 20 times [2022-02-15 11:33:10,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:10,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044876670] [2022-02-15 11:33:10,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:10,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:11,099 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:11,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044876670] [2022-02-15 11:33:11,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044876670] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:11,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:11,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:33:11,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193275532] [2022-02-15 11:33:11,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:11,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:33:11,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:11,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:33:11,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:33:11,100 INFO L87 Difference]: Start difference. First operand 21421 states and 70823 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:11,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:11,354 INFO L93 Difference]: Finished difference Result 23257 states and 76836 transitions. [2022-02-15 11:33:11,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 11:33:11,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:11,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:11,404 INFO L225 Difference]: With dead ends: 23257 [2022-02-15 11:33:11,404 INFO L226 Difference]: Without dead ends: 21892 [2022-02-15 11:33:11,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:11,405 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 247 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:11,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 794 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:11,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21892 states. [2022-02-15 11:33:11,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21892 to 20780. [2022-02-15 11:33:11,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20780 states, 20779 states have (on average 3.305452620434092) internal successors, (68684), 20779 states have internal predecessors, (68684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:11,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20780 states to 20780 states and 68684 transitions. [2022-02-15 11:33:11,866 INFO L78 Accepts]: Start accepts. Automaton has 20780 states and 68684 transitions. Word has length 134 [2022-02-15 11:33:11,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:11,866 INFO L470 AbstractCegarLoop]: Abstraction has 20780 states and 68684 transitions. [2022-02-15 11:33:11,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:11,866 INFO L276 IsEmpty]: Start isEmpty. Operand 20780 states and 68684 transitions. [2022-02-15 11:33:11,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:11,899 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:11,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:33:11,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 11:33:11,899 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:11,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:11,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1576421818, now seen corresponding path program 21 times [2022-02-15 11:33:11,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:11,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355762270] [2022-02-15 11:33:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:11,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:12,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:12,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355762270] [2022-02-15 11:33:12,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355762270] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:12,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:12,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:12,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489054504] [2022-02-15 11:33:12,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:12,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:12,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:12,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:12,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:12,094 INFO L87 Difference]: Start difference. First operand 20780 states and 68684 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:12,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:12,440 INFO L93 Difference]: Finished difference Result 23048 states and 75855 transitions. [2022-02-15 11:33:12,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:33:12,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:12,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:12,490 INFO L225 Difference]: With dead ends: 23048 [2022-02-15 11:33:12,490 INFO L226 Difference]: Without dead ends: 22084 [2022-02-15 11:33:12,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:12,491 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 201 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:12,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 920 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:12,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22084 states. [2022-02-15 11:33:12,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22084 to 21084. [2022-02-15 11:33:12,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21084 states, 21083 states have (on average 3.302423753735237) internal successors, (69625), 21083 states have internal predecessors, (69625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21084 states to 21084 states and 69625 transitions. [2022-02-15 11:33:12,956 INFO L78 Accepts]: Start accepts. Automaton has 21084 states and 69625 transitions. Word has length 134 [2022-02-15 11:33:12,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:12,957 INFO L470 AbstractCegarLoop]: Abstraction has 21084 states and 69625 transitions. [2022-02-15 11:33:12,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:12,957 INFO L276 IsEmpty]: Start isEmpty. Operand 21084 states and 69625 transitions. [2022-02-15 11:33:12,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:12,991 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:12,991 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] [2022-02-15 11:33:12,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 11:33:12,992 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:12,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:12,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1326219728, now seen corresponding path program 22 times [2022-02-15 11:33:12,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:12,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686365316] [2022-02-15 11:33:12,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:12,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:13,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:13,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:13,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686365316] [2022-02-15 11:33:13,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686365316] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:13,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:13,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:33:13,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884816519] [2022-02-15 11:33:13,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:13,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:33:13,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:13,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:33:13,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:13,322 INFO L87 Difference]: Start difference. First operand 21084 states and 69625 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:13,763 INFO L93 Difference]: Finished difference Result 21932 states and 72281 transitions. [2022-02-15 11:33:13,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:33:13,763 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:13,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:13,818 INFO L225 Difference]: With dead ends: 21932 [2022-02-15 11:33:13,818 INFO L226 Difference]: Without dead ends: 21932 [2022-02-15 11:33:13,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-02-15 11:33:13,819 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 172 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:13,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 1233 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:13,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21932 states. [2022-02-15 11:33:14,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21932 to 21916. [2022-02-15 11:33:14,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21916 states, 21915 states have (on average 3.2962354551676936) internal successors, (72237), 21915 states have internal predecessors, (72237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:14,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21916 states to 21916 states and 72237 transitions. [2022-02-15 11:33:14,332 INFO L78 Accepts]: Start accepts. Automaton has 21916 states and 72237 transitions. Word has length 134 [2022-02-15 11:33:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:14,332 INFO L470 AbstractCegarLoop]: Abstraction has 21916 states and 72237 transitions. [2022-02-15 11:33:14,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 21916 states and 72237 transitions. [2022-02-15 11:33:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:14,369 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:14,369 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] [2022-02-15 11:33:14,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 11:33:14,369 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:14,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:14,370 INFO L85 PathProgramCache]: Analyzing trace with hash -145875978, now seen corresponding path program 23 times [2022-02-15 11:33:14,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:14,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104751728] [2022-02-15 11:33:14,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:14,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:14,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:14,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:14,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104751728] [2022-02-15 11:33:14,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104751728] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:14,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:14,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:33:14,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928778763] [2022-02-15 11:33:14,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:14,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:33:14,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:14,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:33:14,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:14,570 INFO L87 Difference]: Start difference. First operand 21916 states and 72237 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:15,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:15,344 INFO L93 Difference]: Finished difference Result 35950 states and 120346 transitions. [2022-02-15 11:33:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:33:15,345 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:15,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:15,453 INFO L225 Difference]: With dead ends: 35950 [2022-02-15 11:33:15,453 INFO L226 Difference]: Without dead ends: 35614 [2022-02-15 11:33:15,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:33:15,454 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 488 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:15,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 1390 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 11:33:15,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35614 states. [2022-02-15 11:33:16,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35614 to 21724. [2022-02-15 11:33:16,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21724 states, 21723 states have (on average 3.297380656447084) internal successors, (71629), 21723 states have internal predecessors, (71629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:16,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21724 states to 21724 states and 71629 transitions. [2022-02-15 11:33:16,128 INFO L78 Accepts]: Start accepts. Automaton has 21724 states and 71629 transitions. Word has length 134 [2022-02-15 11:33:16,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:16,128 INFO L470 AbstractCegarLoop]: Abstraction has 21724 states and 71629 transitions. [2022-02-15 11:33:16,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:16,129 INFO L276 IsEmpty]: Start isEmpty. Operand 21724 states and 71629 transitions. [2022-02-15 11:33:16,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:16,166 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:16,166 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] [2022-02-15 11:33:16,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 11:33:16,166 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:16,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:16,166 INFO L85 PathProgramCache]: Analyzing trace with hash 651445610, now seen corresponding path program 24 times [2022-02-15 11:33:16,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:16,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480677610] [2022-02-15 11:33:16,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:16,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:16,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:16,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:16,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480677610] [2022-02-15 11:33:16,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480677610] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:16,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:16,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:33:16,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691786049] [2022-02-15 11:33:16,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:16,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:33:16,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:16,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:33:16,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:33:16,379 INFO L87 Difference]: Start difference. First operand 21724 states and 71629 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:16,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:16,771 INFO L93 Difference]: Finished difference Result 22412 states and 73861 transitions. [2022-02-15 11:33:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 11:33:16,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:16,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:16,838 INFO L225 Difference]: With dead ends: 22412 [2022-02-15 11:33:16,838 INFO L226 Difference]: Without dead ends: 22412 [2022-02-15 11:33:16,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:16,839 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 136 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:16,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 999 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:16,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22412 states. [2022-02-15 11:33:17,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22412 to 21412. [2022-02-15 11:33:17,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21412 states, 21411 states have (on average 3.297510625379478) internal successors, (70603), 21411 states have internal predecessors, (70603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21412 states to 21412 states and 70603 transitions. [2022-02-15 11:33:17,439 INFO L78 Accepts]: Start accepts. Automaton has 21412 states and 70603 transitions. Word has length 134 [2022-02-15 11:33:17,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:17,439 INFO L470 AbstractCegarLoop]: Abstraction has 21412 states and 70603 transitions. [2022-02-15 11:33:17,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 21412 states and 70603 transitions. [2022-02-15 11:33:17,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:17,475 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:17,475 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] [2022-02-15 11:33:17,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 11:33:17,475 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:17,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:17,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1074885588, now seen corresponding path program 25 times [2022-02-15 11:33:17,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:17,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706762870] [2022-02-15 11:33:17,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:17,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:17,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:17,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:17,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706762870] [2022-02-15 11:33:17,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706762870] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:17,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:17,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:33:17,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662561364] [2022-02-15 11:33:17,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:17,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:33:17,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:17,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:33:17,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:17,803 INFO L87 Difference]: Start difference. First operand 21412 states and 70603 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:18,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:18,428 INFO L93 Difference]: Finished difference Result 21748 states and 71531 transitions. [2022-02-15 11:33:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:33:18,429 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:18,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:18,482 INFO L225 Difference]: With dead ends: 21748 [2022-02-15 11:33:18,483 INFO L226 Difference]: Without dead ends: 21328 [2022-02-15 11:33:18,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-02-15 11:33:18,484 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 274 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:18,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 1069 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21328 states. [2022-02-15 11:33:18,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21328 to 21016. [2022-02-15 11:33:18,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21016 states, 21015 states have (on average 3.3046395431834403) internal successors, (69447), 21015 states have internal predecessors, (69447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:18,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21016 states to 21016 states and 69447 transitions. [2022-02-15 11:33:18,869 INFO L78 Accepts]: Start accepts. Automaton has 21016 states and 69447 transitions. Word has length 134 [2022-02-15 11:33:18,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:18,869 INFO L470 AbstractCegarLoop]: Abstraction has 21016 states and 69447 transitions. [2022-02-15 11:33:18,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:18,869 INFO L276 IsEmpty]: Start isEmpty. Operand 21016 states and 69447 transitions. [2022-02-15 11:33:19,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:19,052 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:19,053 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] [2022-02-15 11:33:19,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 11:33:19,053 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:19,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:19,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1489755362, now seen corresponding path program 26 times [2022-02-15 11:33:19,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:19,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172314781] [2022-02-15 11:33:19,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:19,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:19,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:19,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:19,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172314781] [2022-02-15 11:33:19,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172314781] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:19,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:19,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 11:33:19,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213496474] [2022-02-15 11:33:19,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:19,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 11:33:19,131 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:19,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 11:33:19,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:33:19,131 INFO L87 Difference]: Start difference. First operand 21016 states and 69447 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:19,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:19,256 INFO L93 Difference]: Finished difference Result 20364 states and 66466 transitions. [2022-02-15 11:33:19,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 11:33:19,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:19,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:19,304 INFO L225 Difference]: With dead ends: 20364 [2022-02-15 11:33:19,305 INFO L226 Difference]: Without dead ends: 20364 [2022-02-15 11:33:19,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:33:19,306 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 35 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:19,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 233 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 11:33:19,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20364 states. [2022-02-15 11:33:19,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20364 to 20364. [2022-02-15 11:33:19,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20364 states, 20363 states have (on average 3.264057358935324) internal successors, (66466), 20363 states have internal predecessors, (66466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20364 states to 20364 states and 66466 transitions. [2022-02-15 11:33:19,832 INFO L78 Accepts]: Start accepts. Automaton has 20364 states and 66466 transitions. Word has length 134 [2022-02-15 11:33:19,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:19,832 INFO L470 AbstractCegarLoop]: Abstraction has 20364 states and 66466 transitions. [2022-02-15 11:33:19,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 20364 states and 66466 transitions. [2022-02-15 11:33:19,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:19,876 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:19,876 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] [2022-02-15 11:33:19,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 11:33:19,876 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:19,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1807242936, now seen corresponding path program 27 times [2022-02-15 11:33:19,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:19,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956935110] [2022-02-15 11:33:19,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:19,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:20,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:20,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:20,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956935110] [2022-02-15 11:33:20,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956935110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:20,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:20,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:33:20,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394609616] [2022-02-15 11:33:20,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:20,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:33:20,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:20,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:33:20,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:20,072 INFO L87 Difference]: Start difference. First operand 20364 states and 66466 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:20,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:20,713 INFO L93 Difference]: Finished difference Result 37541 states and 124764 transitions. [2022-02-15 11:33:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 11:33:20,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:20,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:20,810 INFO L225 Difference]: With dead ends: 37541 [2022-02-15 11:33:20,810 INFO L226 Difference]: Without dead ends: 36585 [2022-02-15 11:33:20,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:33:20,811 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 527 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:20,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 1155 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 11:33:21,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36585 states. [2022-02-15 11:33:21,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36585 to 22994. [2022-02-15 11:33:21,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22994 states, 22993 states have (on average 3.274170399686861) internal successors, (75283), 22993 states have internal predecessors, (75283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:21,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22994 states to 22994 states and 75283 transitions. [2022-02-15 11:33:21,655 INFO L78 Accepts]: Start accepts. Automaton has 22994 states and 75283 transitions. Word has length 134 [2022-02-15 11:33:21,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:21,656 INFO L470 AbstractCegarLoop]: Abstraction has 22994 states and 75283 transitions. [2022-02-15 11:33:21,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:21,656 INFO L276 IsEmpty]: Start isEmpty. Operand 22994 states and 75283 transitions. [2022-02-15 11:33:21,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:21,694 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:21,694 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] [2022-02-15 11:33:21,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 11:33:21,694 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:21,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:21,695 INFO L85 PathProgramCache]: Analyzing trace with hash -774897258, now seen corresponding path program 28 times [2022-02-15 11:33:21,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:21,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36923465] [2022-02-15 11:33:21,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:21,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:21,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:21,839 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:21,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36923465] [2022-02-15 11:33:21,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36923465] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:21,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:21,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:33:21,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418200032] [2022-02-15 11:33:21,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:21,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:33:21,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:21,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:33:21,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:21,841 INFO L87 Difference]: Start difference. First operand 22994 states and 75283 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:22,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:22,555 INFO L93 Difference]: Finished difference Result 33496 states and 110441 transitions. [2022-02-15 11:33:22,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 11:33:22,555 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:22,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:22,635 INFO L225 Difference]: With dead ends: 33496 [2022-02-15 11:33:22,635 INFO L226 Difference]: Without dead ends: 32596 [2022-02-15 11:33:22,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2022-02-15 11:33:22,636 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 379 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:22,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 1991 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 11:33:22,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32596 states. [2022-02-15 11:33:23,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32596 to 23982. [2022-02-15 11:33:23,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23982 states, 23981 states have (on average 3.265710354030274) internal successors, (78315), 23981 states have internal predecessors, (78315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:23,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23982 states to 23982 states and 78315 transitions. [2022-02-15 11:33:23,239 INFO L78 Accepts]: Start accepts. Automaton has 23982 states and 78315 transitions. Word has length 134 [2022-02-15 11:33:23,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:23,239 INFO L470 AbstractCegarLoop]: Abstraction has 23982 states and 78315 transitions. [2022-02-15 11:33:23,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:23,240 INFO L276 IsEmpty]: Start isEmpty. Operand 23982 states and 78315 transitions. [2022-02-15 11:33:23,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:23,280 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:23,280 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] [2022-02-15 11:33:23,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 11:33:23,280 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:23,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:23,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1909831146, now seen corresponding path program 29 times [2022-02-15 11:33:23,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:23,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501351884] [2022-02-15 11:33:23,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:23,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:23,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:23,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:23,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501351884] [2022-02-15 11:33:23,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501351884] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:23,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:23,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 11:33:23,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619217814] [2022-02-15 11:33:23,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:23,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 11:33:23,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:23,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 11:33:23,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-02-15 11:33:23,573 INFO L87 Difference]: Start difference. First operand 23982 states and 78315 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:23,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:23,844 INFO L93 Difference]: Finished difference Result 25386 states and 83593 transitions. [2022-02-15 11:33:23,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 11:33:23,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:23,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:23,906 INFO L225 Difference]: With dead ends: 25386 [2022-02-15 11:33:23,907 INFO L226 Difference]: Without dead ends: 25386 [2022-02-15 11:33:23,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:33:23,908 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 168 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:23,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 614 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:23,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25386 states. [2022-02-15 11:33:24,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25386 to 21732. [2022-02-15 11:33:24,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21732 states, 21731 states have (on average 3.275643090515853) internal successors, (71183), 21731 states have internal predecessors, (71183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:24,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21732 states to 21732 states and 71183 transitions. [2022-02-15 11:33:24,331 INFO L78 Accepts]: Start accepts. Automaton has 21732 states and 71183 transitions. Word has length 134 [2022-02-15 11:33:24,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:24,331 INFO L470 AbstractCegarLoop]: Abstraction has 21732 states and 71183 transitions. [2022-02-15 11:33:24,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:24,331 INFO L276 IsEmpty]: Start isEmpty. Operand 21732 states and 71183 transitions. [2022-02-15 11:33:24,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:24,368 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:24,368 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] [2022-02-15 11:33:24,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 11:33:24,368 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:24,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:24,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1899678544, now seen corresponding path program 30 times [2022-02-15 11:33:24,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:24,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033106837] [2022-02-15 11:33:24,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:24,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:24,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:24,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033106837] [2022-02-15 11:33:24,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033106837] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:24,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:24,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 11:33:24,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641026734] [2022-02-15 11:33:24,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:24,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 11:33:24,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:24,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 11:33:24,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-15 11:33:24,527 INFO L87 Difference]: Start difference. First operand 21732 states and 71183 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:24,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:24,784 INFO L93 Difference]: Finished difference Result 24390 states and 79374 transitions. [2022-02-15 11:33:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 11:33:24,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:24,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:24,836 INFO L225 Difference]: With dead ends: 24390 [2022-02-15 11:33:24,836 INFO L226 Difference]: Without dead ends: 23808 [2022-02-15 11:33:24,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:24,836 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 190 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:24,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 640 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:33:24,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23808 states. [2022-02-15 11:33:25,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23808 to 21740. [2022-02-15 11:33:25,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21740 states, 21739 states have (on average 3.275633653801923) internal successors, (71209), 21739 states have internal predecessors, (71209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:25,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21740 states to 21740 states and 71209 transitions. [2022-02-15 11:33:25,224 INFO L78 Accepts]: Start accepts. Automaton has 21740 states and 71209 transitions. Word has length 134 [2022-02-15 11:33:25,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:25,224 INFO L470 AbstractCegarLoop]: Abstraction has 21740 states and 71209 transitions. [2022-02-15 11:33:25,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:25,224 INFO L276 IsEmpty]: Start isEmpty. Operand 21740 states and 71209 transitions. [2022-02-15 11:33:25,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:25,259 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:25,259 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] [2022-02-15 11:33:25,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 11:33:25,259 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:25,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:25,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1713655916, now seen corresponding path program 31 times [2022-02-15 11:33:25,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:25,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856639739] [2022-02-15 11:33:25,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:25,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:25,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:25,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:25,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856639739] [2022-02-15 11:33:25,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856639739] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:25,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:25,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:33:25,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224420849] [2022-02-15 11:33:25,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:25,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:33:25,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:25,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:33:25,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:33:25,388 INFO L87 Difference]: Start difference. First operand 21740 states and 71209 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:25,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:25,732 INFO L93 Difference]: Finished difference Result 27028 states and 87767 transitions. [2022-02-15 11:33:25,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 11:33:25,733 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:25,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:25,791 INFO L225 Difference]: With dead ends: 27028 [2022-02-15 11:33:25,791 INFO L226 Difference]: Without dead ends: 26268 [2022-02-15 11:33:25,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:25,792 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 340 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:25,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 744 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:25,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26268 states. [2022-02-15 11:33:26,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26268 to 23028. [2022-02-15 11:33:26,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23028 states, 23027 states have (on average 3.2606505406696487) internal successors, (75083), 23027 states have internal predecessors, (75083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:26,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23028 states to 23028 states and 75083 transitions. [2022-02-15 11:33:26,216 INFO L78 Accepts]: Start accepts. Automaton has 23028 states and 75083 transitions. Word has length 134 [2022-02-15 11:33:26,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:26,216 INFO L470 AbstractCegarLoop]: Abstraction has 23028 states and 75083 transitions. [2022-02-15 11:33:26,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:26,216 INFO L276 IsEmpty]: Start isEmpty. Operand 23028 states and 75083 transitions. [2022-02-15 11:33:26,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:26,254 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:26,254 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] [2022-02-15 11:33:26,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 11:33:26,254 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:26,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:26,255 INFO L85 PathProgramCache]: Analyzing trace with hash -981233378, now seen corresponding path program 32 times [2022-02-15 11:33:26,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:26,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273209798] [2022-02-15 11:33:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:26,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:26,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:26,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:26,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273209798] [2022-02-15 11:33:26,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273209798] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:26,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:26,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:33:26,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876475481] [2022-02-15 11:33:26,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:26,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:33:26,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:26,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:33:26,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:26,397 INFO L87 Difference]: Start difference. First operand 23028 states and 75083 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:26,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:26,931 INFO L93 Difference]: Finished difference Result 32700 states and 106774 transitions. [2022-02-15 11:33:26,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:33:26,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:26,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:27,003 INFO L225 Difference]: With dead ends: 32700 [2022-02-15 11:33:27,004 INFO L226 Difference]: Without dead ends: 31902 [2022-02-15 11:33:27,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2022-02-15 11:33:27,004 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 343 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:27,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 1312 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:27,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31902 states. [2022-02-15 11:33:27,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31902 to 24448. [2022-02-15 11:33:27,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 3.249396653986174) internal successors, (79438), 24447 states have internal predecessors, (79438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 79438 transitions. [2022-02-15 11:33:27,510 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 79438 transitions. Word has length 134 [2022-02-15 11:33:27,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:27,510 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 79438 transitions. [2022-02-15 11:33:27,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:27,510 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 79438 transitions. [2022-02-15 11:33:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:27,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:27,549 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] [2022-02-15 11:33:27,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 11:33:27,549 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:27,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:27,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1255525630, now seen corresponding path program 33 times [2022-02-15 11:33:27,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:27,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943373800] [2022-02-15 11:33:27,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:27,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:27,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:27,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943373800] [2022-02-15 11:33:27,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943373800] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:27,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:27,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:27,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74749512] [2022-02-15 11:33:27,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:27,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:27,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:27,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:27,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:27,674 INFO L87 Difference]: Start difference. First operand 24448 states and 79438 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:28,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:28,120 INFO L93 Difference]: Finished difference Result 37853 states and 122590 transitions. [2022-02-15 11:33:28,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:33:28,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:28,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:28,208 INFO L225 Difference]: With dead ends: 37853 [2022-02-15 11:33:28,208 INFO L226 Difference]: Without dead ends: 36256 [2022-02-15 11:33:28,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:33:28,209 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 541 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:28,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [541 Valid, 889 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:28,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36256 states. [2022-02-15 11:33:28,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36256 to 23270. [2022-02-15 11:33:28,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23270 states, 23269 states have (on average 3.2376982251063646) internal successors, (75338), 23269 states have internal predecessors, (75338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:28,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23270 states to 23270 states and 75338 transitions. [2022-02-15 11:33:28,724 INFO L78 Accepts]: Start accepts. Automaton has 23270 states and 75338 transitions. Word has length 134 [2022-02-15 11:33:28,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:28,724 INFO L470 AbstractCegarLoop]: Abstraction has 23270 states and 75338 transitions. [2022-02-15 11:33:28,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:28,725 INFO L276 IsEmpty]: Start isEmpty. Operand 23270 states and 75338 transitions. [2022-02-15 11:33:28,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:28,761 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:28,761 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] [2022-02-15 11:33:28,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 11:33:28,761 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:28,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:28,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1988824622, now seen corresponding path program 34 times [2022-02-15 11:33:28,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:28,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011208200] [2022-02-15 11:33:28,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:28,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:29,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:29,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:29,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011208200] [2022-02-15 11:33:29,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011208200] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:29,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:29,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:33:29,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997687845] [2022-02-15 11:33:29,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:29,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:33:29,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:29,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:33:29,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:29,160 INFO L87 Difference]: Start difference. First operand 23270 states and 75338 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:30,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:30,355 INFO L93 Difference]: Finished difference Result 43075 states and 138987 transitions. [2022-02-15 11:33:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:33:30,355 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:30,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:30,464 INFO L225 Difference]: With dead ends: 43075 [2022-02-15 11:33:30,465 INFO L226 Difference]: Without dead ends: 42835 [2022-02-15 11:33:30,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:33:30,465 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 944 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 1728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:30,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [944 Valid, 2345 Invalid, 1728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 11:33:30,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42835 states. [2022-02-15 11:33:30,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42835 to 23414. [2022-02-15 11:33:30,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23414 states, 23413 states have (on average 3.236919660017939) internal successors, (75786), 23413 states have internal predecessors, (75786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23414 states to 23414 states and 75786 transitions. [2022-02-15 11:33:31,044 INFO L78 Accepts]: Start accepts. Automaton has 23414 states and 75786 transitions. Word has length 134 [2022-02-15 11:33:31,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:31,044 INFO L470 AbstractCegarLoop]: Abstraction has 23414 states and 75786 transitions. [2022-02-15 11:33:31,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:31,046 INFO L276 IsEmpty]: Start isEmpty. Operand 23414 states and 75786 transitions. [2022-02-15 11:33:31,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:31,083 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:31,087 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] [2022-02-15 11:33:31,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 11:33:31,087 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:31,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:31,100 INFO L85 PathProgramCache]: Analyzing trace with hash -652801780, now seen corresponding path program 35 times [2022-02-15 11:33:31,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:31,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216998515] [2022-02-15 11:33:31,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:31,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:31,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:31,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:31,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216998515] [2022-02-15 11:33:31,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216998515] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:31,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:31,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 11:33:31,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352064641] [2022-02-15 11:33:31,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:31,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 11:33:31,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:31,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 11:33:31,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-15 11:33:31,281 INFO L87 Difference]: Start difference. First operand 23414 states and 75786 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:31,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:31,589 INFO L93 Difference]: Finished difference Result 25826 states and 83039 transitions. [2022-02-15 11:33:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 11:33:31,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:31,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:31,661 INFO L225 Difference]: With dead ends: 25826 [2022-02-15 11:33:31,661 INFO L226 Difference]: Without dead ends: 25356 [2022-02-15 11:33:31,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:33:31,662 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 141 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:31,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 745 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:31,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25356 states. [2022-02-15 11:33:32,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25356 to 23352. [2022-02-15 11:33:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23352 states, 23351 states have (on average 3.2376343625540662) internal successors, (75602), 23351 states have internal predecessors, (75602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23352 states to 23352 states and 75602 transitions. [2022-02-15 11:33:32,569 INFO L78 Accepts]: Start accepts. Automaton has 23352 states and 75602 transitions. Word has length 134 [2022-02-15 11:33:32,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:32,569 INFO L470 AbstractCegarLoop]: Abstraction has 23352 states and 75602 transitions. [2022-02-15 11:33:32,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:32,569 INFO L276 IsEmpty]: Start isEmpty. Operand 23352 states and 75602 transitions. [2022-02-15 11:33:32,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:32,615 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:32,615 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] [2022-02-15 11:33:32,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 11:33:32,615 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:32,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:32,616 INFO L85 PathProgramCache]: Analyzing trace with hash -328300614, now seen corresponding path program 36 times [2022-02-15 11:33:32,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:32,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211003613] [2022-02-15 11:33:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:32,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:32,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:32,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211003613] [2022-02-15 11:33:32,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211003613] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:32,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:32,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:33:32,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964080693] [2022-02-15 11:33:32,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:32,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:33:32,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:32,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:33:32,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:32,789 INFO L87 Difference]: Start difference. First operand 23352 states and 75602 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:33,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:33,264 INFO L93 Difference]: Finished difference Result 29628 states and 96081 transitions. [2022-02-15 11:33:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 11:33:33,264 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:33,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:33,339 INFO L225 Difference]: With dead ends: 29628 [2022-02-15 11:33:33,340 INFO L226 Difference]: Without dead ends: 29628 [2022-02-15 11:33:33,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-02-15 11:33:33,340 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 273 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:33,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 1092 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:33,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29628 states. [2022-02-15 11:33:33,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29628 to 23640. [2022-02-15 11:33:33,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23640 states, 23639 states have (on average 3.2398155590338003) internal successors, (76586), 23639 states have internal predecessors, (76586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23640 states to 23640 states and 76586 transitions. [2022-02-15 11:33:33,940 INFO L78 Accepts]: Start accepts. Automaton has 23640 states and 76586 transitions. Word has length 134 [2022-02-15 11:33:33,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:33,941 INFO L470 AbstractCegarLoop]: Abstraction has 23640 states and 76586 transitions. [2022-02-15 11:33:33,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 23640 states and 76586 transitions. [2022-02-15 11:33:33,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:33,986 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:33,986 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] [2022-02-15 11:33:33,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 11:33:33,986 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:33,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:33,986 INFO L85 PathProgramCache]: Analyzing trace with hash 852043136, now seen corresponding path program 37 times [2022-02-15 11:33:33,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:33,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635451443] [2022-02-15 11:33:33,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:33,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:34,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:34,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:34,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635451443] [2022-02-15 11:33:34,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635451443] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:34,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:34,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:34,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261123332] [2022-02-15 11:33:34,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:34,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:34,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:34,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:34,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:34,173 INFO L87 Difference]: Start difference. First operand 23640 states and 76586 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:34,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:34,698 INFO L93 Difference]: Finished difference Result 34227 states and 111327 transitions. [2022-02-15 11:33:34,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 11:33:34,699 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:34,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:34,796 INFO L225 Difference]: With dead ends: 34227 [2022-02-15 11:33:34,796 INFO L226 Difference]: Without dead ends: 32681 [2022-02-15 11:33:34,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:34,797 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 217 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:34,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 852 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:34,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32681 states. [2022-02-15 11:33:35,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32681 to 25962. [2022-02-15 11:33:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25962 states, 25961 states have (on average 3.23662416701976) internal successors, (84026), 25961 states have internal predecessors, (84026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:35,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25962 states to 25962 states and 84026 transitions. [2022-02-15 11:33:35,400 INFO L78 Accepts]: Start accepts. Automaton has 25962 states and 84026 transitions. Word has length 134 [2022-02-15 11:33:35,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:35,400 INFO L470 AbstractCegarLoop]: Abstraction has 25962 states and 84026 transitions. [2022-02-15 11:33:35,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:35,400 INFO L276 IsEmpty]: Start isEmpty. Operand 25962 states and 84026 transitions. [2022-02-15 11:33:35,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:35,445 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:35,445 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] [2022-02-15 11:33:35,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 11:33:35,445 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:35,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:35,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1304860150, now seen corresponding path program 38 times [2022-02-15 11:33:35,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:35,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519168633] [2022-02-15 11:33:35,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:35,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:35,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:35,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:35,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519168633] [2022-02-15 11:33:35,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519168633] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:35,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:35,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:33:35,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081107680] [2022-02-15 11:33:35,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:35,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:33:35,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:35,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:33:35,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:33:35,558 INFO L87 Difference]: Start difference. First operand 25962 states and 84026 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:35,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:35,844 INFO L93 Difference]: Finished difference Result 30647 states and 98256 transitions. [2022-02-15 11:33:35,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:33:35,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:35,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:35,906 INFO L225 Difference]: With dead ends: 30647 [2022-02-15 11:33:35,906 INFO L226 Difference]: Without dead ends: 27015 [2022-02-15 11:33:35,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:35,907 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 406 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:35,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 579 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:33:36,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27015 states. [2022-02-15 11:33:36,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27015 to 22108. [2022-02-15 11:33:36,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22108 states, 22107 states have (on average 3.219116117066992) internal successors, (71165), 22107 states have internal predecessors, (71165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:36,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22108 states to 22108 states and 71165 transitions. [2022-02-15 11:33:36,745 INFO L78 Accepts]: Start accepts. Automaton has 22108 states and 71165 transitions. Word has length 134 [2022-02-15 11:33:36,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:36,746 INFO L470 AbstractCegarLoop]: Abstraction has 22108 states and 71165 transitions. [2022-02-15 11:33:36,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:36,746 INFO L276 IsEmpty]: Start isEmpty. Operand 22108 states and 71165 transitions. [2022-02-15 11:33:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:36,789 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:36,789 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] [2022-02-15 11:33:36,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 11:33:36,790 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:36,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:36,790 INFO L85 PathProgramCache]: Analyzing trace with hash -978686880, now seen corresponding path program 39 times [2022-02-15 11:33:36,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:36,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082545702] [2022-02-15 11:33:36,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:36,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:37,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:37,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:37,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082545702] [2022-02-15 11:33:37,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082545702] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:37,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:37,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:37,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992208761] [2022-02-15 11:33:37,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:37,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:37,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:37,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:37,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:37,225 INFO L87 Difference]: Start difference. First operand 22108 states and 71165 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:37,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:37,703 INFO L93 Difference]: Finished difference Result 23272 states and 74693 transitions. [2022-02-15 11:33:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:33:37,704 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:37,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:37,760 INFO L225 Difference]: With dead ends: 23272 [2022-02-15 11:33:37,760 INFO L226 Difference]: Without dead ends: 22600 [2022-02-15 11:33:37,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:33:37,761 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 222 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:37,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 980 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:37,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22600 states. [2022-02-15 11:33:38,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22600 to 22052. [2022-02-15 11:33:38,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22052 states, 22051 states have (on average 3.217767901682463) internal successors, (70955), 22051 states have internal predecessors, (70955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:38,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22052 states to 22052 states and 70955 transitions. [2022-02-15 11:33:38,358 INFO L78 Accepts]: Start accepts. Automaton has 22052 states and 70955 transitions. Word has length 134 [2022-02-15 11:33:38,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:38,358 INFO L470 AbstractCegarLoop]: Abstraction has 22052 states and 70955 transitions. [2022-02-15 11:33:38,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:38,358 INFO L276 IsEmpty]: Start isEmpty. Operand 22052 states and 70955 transitions. [2022-02-15 11:33:38,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:38,394 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:38,394 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] [2022-02-15 11:33:38,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 11:33:38,394 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:38,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:38,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1793566766, now seen corresponding path program 40 times [2022-02-15 11:33:38,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:38,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527859431] [2022-02-15 11:33:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:38,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:38,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:38,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:38,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527859431] [2022-02-15 11:33:38,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527859431] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:38,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:38,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:38,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135245136] [2022-02-15 11:33:38,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:38,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:38,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:38,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:38,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:38,578 INFO L87 Difference]: Start difference. First operand 22052 states and 70955 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:38,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:38,879 INFO L93 Difference]: Finished difference Result 22084 states and 71019 transitions. [2022-02-15 11:33:38,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:33:38,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:38,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:38,932 INFO L225 Difference]: With dead ends: 22084 [2022-02-15 11:33:38,932 INFO L226 Difference]: Without dead ends: 21638 [2022-02-15 11:33:38,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:38,933 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 138 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:38,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 799 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:38,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21638 states. [2022-02-15 11:33:39,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21638 to 21606. [2022-02-15 11:33:39,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21606 states, 21605 states have (on average 3.2267993520018514) internal successors, (69715), 21605 states have internal predecessors, (69715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21606 states to 21606 states and 69715 transitions. [2022-02-15 11:33:39,469 INFO L78 Accepts]: Start accepts. Automaton has 21606 states and 69715 transitions. Word has length 134 [2022-02-15 11:33:39,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:39,469 INFO L470 AbstractCegarLoop]: Abstraction has 21606 states and 69715 transitions. [2022-02-15 11:33:39,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:39,469 INFO L276 IsEmpty]: Start isEmpty. Operand 21606 states and 69715 transitions. [2022-02-15 11:33:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:39,514 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:39,514 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] [2022-02-15 11:33:39,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 11:33:39,515 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:39,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:39,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1225752588, now seen corresponding path program 41 times [2022-02-15 11:33:39,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:39,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144375182] [2022-02-15 11:33:39,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:39,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:39,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:39,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:39,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144375182] [2022-02-15 11:33:39,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144375182] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:39,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:39,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:39,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127242767] [2022-02-15 11:33:39,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:39,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:39,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:39,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:39,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:39,663 INFO L87 Difference]: Start difference. First operand 21606 states and 69715 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:40,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:40,129 INFO L93 Difference]: Finished difference Result 29983 states and 95796 transitions. [2022-02-15 11:33:40,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 11:33:40,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:40,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:40,389 INFO L225 Difference]: With dead ends: 29983 [2022-02-15 11:33:40,389 INFO L226 Difference]: Without dead ends: 28781 [2022-02-15 11:33:40,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:40,390 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 245 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:40,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 1095 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:40,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28781 states. [2022-02-15 11:33:40,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28781 to 19968. [2022-02-15 11:33:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19968 states, 19967 states have (on average 3.2451044222967895) internal successors, (64795), 19967 states have internal predecessors, (64795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:40,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19968 states to 19968 states and 64795 transitions. [2022-02-15 11:33:40,804 INFO L78 Accepts]: Start accepts. Automaton has 19968 states and 64795 transitions. Word has length 134 [2022-02-15 11:33:40,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:40,805 INFO L470 AbstractCegarLoop]: Abstraction has 19968 states and 64795 transitions. [2022-02-15 11:33:40,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:40,805 INFO L276 IsEmpty]: Start isEmpty. Operand 19968 states and 64795 transitions. [2022-02-15 11:33:40,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:40,841 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:40,842 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] [2022-02-15 11:33:40,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 11:33:40,842 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:40,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:40,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1761556582, now seen corresponding path program 42 times [2022-02-15 11:33:40,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:40,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666636433] [2022-02-15 11:33:40,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:40,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:41,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:41,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666636433] [2022-02-15 11:33:41,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666636433] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:41,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:41,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:41,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429693721] [2022-02-15 11:33:41,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:41,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:41,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:41,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:41,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:41,076 INFO L87 Difference]: Start difference. First operand 19968 states and 64795 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:41,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:41,498 INFO L93 Difference]: Finished difference Result 29096 states and 92963 transitions. [2022-02-15 11:33:41,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:33:41,498 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:41,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:41,573 INFO L225 Difference]: With dead ends: 29096 [2022-02-15 11:33:41,573 INFO L226 Difference]: Without dead ends: 29096 [2022-02-15 11:33:41,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2022-02-15 11:33:41,574 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 668 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:41,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [668 Valid, 796 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:41,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29096 states. [2022-02-15 11:33:42,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29096 to 22227. [2022-02-15 11:33:42,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22227 states, 22226 states have (on average 3.2232970395032843) internal successors, (71641), 22226 states have internal predecessors, (71641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:42,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22227 states to 22227 states and 71641 transitions. [2022-02-15 11:33:42,144 INFO L78 Accepts]: Start accepts. Automaton has 22227 states and 71641 transitions. Word has length 134 [2022-02-15 11:33:42,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:42,144 INFO L470 AbstractCegarLoop]: Abstraction has 22227 states and 71641 transitions. [2022-02-15 11:33:42,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand 22227 states and 71641 transitions. [2022-02-15 11:33:42,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:42,186 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:42,186 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] [2022-02-15 11:33:42,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 11:33:42,186 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:42,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:42,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2137391804, now seen corresponding path program 43 times [2022-02-15 11:33:42,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:42,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645981313] [2022-02-15 11:33:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:42,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:42,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:42,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645981313] [2022-02-15 11:33:42,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645981313] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:42,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:42,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:33:42,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081443857] [2022-02-15 11:33:42,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:42,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:33:42,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:42,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:33:42,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:42,312 INFO L87 Difference]: Start difference. First operand 22227 states and 71641 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:42,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:42,885 INFO L93 Difference]: Finished difference Result 28477 states and 91091 transitions. [2022-02-15 11:33:42,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:33:42,886 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:42,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:42,945 INFO L225 Difference]: With dead ends: 28477 [2022-02-15 11:33:42,945 INFO L226 Difference]: Without dead ends: 24403 [2022-02-15 11:33:42,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:33:42,946 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 535 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:42,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [535 Valid, 1991 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:42,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24403 states. [2022-02-15 11:33:43,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24403 to 19809. [2022-02-15 11:33:43,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19809 states, 19808 states have (on average 3.2033521809369954) internal successors, (63452), 19808 states have internal predecessors, (63452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19809 states to 19809 states and 63452 transitions. [2022-02-15 11:33:43,403 INFO L78 Accepts]: Start accepts. Automaton has 19809 states and 63452 transitions. Word has length 134 [2022-02-15 11:33:43,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:43,405 INFO L470 AbstractCegarLoop]: Abstraction has 19809 states and 63452 transitions. [2022-02-15 11:33:43,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:43,407 INFO L276 IsEmpty]: Start isEmpty. Operand 19809 states and 63452 transitions. [2022-02-15 11:33:43,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:43,440 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:43,440 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] [2022-02-15 11:33:43,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 11:33:43,440 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:43,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:43,441 INFO L85 PathProgramCache]: Analyzing trace with hash 742725574, now seen corresponding path program 44 times [2022-02-15 11:33:43,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:43,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999117527] [2022-02-15 11:33:43,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:43,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:43,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:43,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:43,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999117527] [2022-02-15 11:33:43,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999117527] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:43,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:43,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:33:43,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5845985] [2022-02-15 11:33:43,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:43,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:33:43,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:43,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:33:43,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:43,598 INFO L87 Difference]: Start difference. First operand 19809 states and 63452 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:44,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:44,171 INFO L93 Difference]: Finished difference Result 26857 states and 85939 transitions. [2022-02-15 11:33:44,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:33:44,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:44,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:44,231 INFO L225 Difference]: With dead ends: 26857 [2022-02-15 11:33:44,232 INFO L226 Difference]: Without dead ends: 26331 [2022-02-15 11:33:44,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:33:44,232 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 300 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:44,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 1079 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:44,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26331 states. [2022-02-15 11:33:44,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26331 to 18391. [2022-02-15 11:33:44,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18391 states, 18390 states have (on average 3.1963567156063077) internal successors, (58781), 18390 states have internal predecessors, (58781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:44,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18391 states to 18391 states and 58781 transitions. [2022-02-15 11:33:44,725 INFO L78 Accepts]: Start accepts. Automaton has 18391 states and 58781 transitions. Word has length 134 [2022-02-15 11:33:44,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:44,725 INFO L470 AbstractCegarLoop]: Abstraction has 18391 states and 58781 transitions. [2022-02-15 11:33:44,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 18391 states and 58781 transitions. [2022-02-15 11:33:44,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:44,754 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:44,754 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] [2022-02-15 11:33:44,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 11:33:44,754 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:44,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:44,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1926481874, now seen corresponding path program 45 times [2022-02-15 11:33:44,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:44,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950739642] [2022-02-15 11:33:44,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:44,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:44,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:44,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950739642] [2022-02-15 11:33:44,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950739642] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:44,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:44,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:33:44,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677425719] [2022-02-15 11:33:44,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:44,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:33:44,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:44,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:33:44,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:44,903 INFO L87 Difference]: Start difference. First operand 18391 states and 58781 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:45,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:45,336 INFO L93 Difference]: Finished difference Result 19463 states and 61977 transitions. [2022-02-15 11:33:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:33:45,336 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:45,379 INFO L225 Difference]: With dead ends: 19463 [2022-02-15 11:33:45,379 INFO L226 Difference]: Without dead ends: 19463 [2022-02-15 11:33:45,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:33:45,380 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 251 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:45,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 1261 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:45,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19463 states. [2022-02-15 11:33:45,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19463 to 18535. [2022-02-15 11:33:45,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18535 states, 18534 states have (on average 3.195262760332362) internal successors, (59221), 18534 states have internal predecessors, (59221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:45,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18535 states to 18535 states and 59221 transitions. [2022-02-15 11:33:45,814 INFO L78 Accepts]: Start accepts. Automaton has 18535 states and 59221 transitions. Word has length 134 [2022-02-15 11:33:45,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:45,814 INFO L470 AbstractCegarLoop]: Abstraction has 18535 states and 59221 transitions. [2022-02-15 11:33:45,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 18535 states and 59221 transitions. [2022-02-15 11:33:45,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:45,845 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:45,845 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] [2022-02-15 11:33:45,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 11:33:45,845 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:45,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:45,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1796426514, now seen corresponding path program 46 times [2022-02-15 11:33:45,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:45,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856846398] [2022-02-15 11:33:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:45,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:45,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:45,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:45,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856846398] [2022-02-15 11:33:45,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856846398] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:45,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:45,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:33:45,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996780489] [2022-02-15 11:33:45,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:45,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:33:45,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:45,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:33:45,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:45,990 INFO L87 Difference]: Start difference. First operand 18535 states and 59221 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:46,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:46,464 INFO L93 Difference]: Finished difference Result 23111 states and 73274 transitions. [2022-02-15 11:33:46,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:33:46,464 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:46,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:46,509 INFO L225 Difference]: With dead ends: 23111 [2022-02-15 11:33:46,509 INFO L226 Difference]: Without dead ends: 20221 [2022-02-15 11:33:46,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:33:46,509 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 547 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:46,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 1697 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:46,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20221 states. [2022-02-15 11:33:46,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20221 to 17119. [2022-02-15 11:33:46,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17119 states, 17118 states have (on average 3.1683023717724033) internal successors, (54235), 17118 states have internal predecessors, (54235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:46,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17119 states to 17119 states and 54235 transitions. [2022-02-15 11:33:46,954 INFO L78 Accepts]: Start accepts. Automaton has 17119 states and 54235 transitions. Word has length 134 [2022-02-15 11:33:46,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:46,954 INFO L470 AbstractCegarLoop]: Abstraction has 17119 states and 54235 transitions. [2022-02-15 11:33:46,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:46,954 INFO L276 IsEmpty]: Start isEmpty. Operand 17119 states and 54235 transitions. [2022-02-15 11:33:46,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:46,981 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:46,981 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] [2022-02-15 11:33:46,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 11:33:46,981 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:46,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:46,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1856820820, now seen corresponding path program 47 times [2022-02-15 11:33:46,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:46,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984383000] [2022-02-15 11:33:46,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:46,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:47,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:47,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:47,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984383000] [2022-02-15 11:33:47,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984383000] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:47,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:47,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:47,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100745047] [2022-02-15 11:33:47,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:47,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:47,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:47,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:47,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:47,238 INFO L87 Difference]: Start difference. First operand 17119 states and 54235 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:47,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:47,461 INFO L93 Difference]: Finished difference Result 17895 states and 56537 transitions. [2022-02-15 11:33:47,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:33:47,461 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:47,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:47,497 INFO L225 Difference]: With dead ends: 17895 [2022-02-15 11:33:47,497 INFO L226 Difference]: Without dead ends: 17283 [2022-02-15 11:33:47,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:47,499 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 141 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:47,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 716 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:33:47,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17283 states. [2022-02-15 11:33:47,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17283 to 17163. [2022-02-15 11:33:47,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17163 states, 17162 states have (on average 3.1660645612399487) internal successors, (54336), 17162 states have internal predecessors, (54336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17163 states to 17163 states and 54336 transitions. [2022-02-15 11:33:47,958 INFO L78 Accepts]: Start accepts. Automaton has 17163 states and 54336 transitions. Word has length 134 [2022-02-15 11:33:47,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:47,959 INFO L470 AbstractCegarLoop]: Abstraction has 17163 states and 54336 transitions. [2022-02-15 11:33:47,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:47,959 INFO L276 IsEmpty]: Start isEmpty. Operand 17163 states and 54336 transitions. [2022-02-15 11:33:47,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:47,994 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:47,994 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] [2022-02-15 11:33:47,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 11:33:47,994 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:47,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:47,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1706296396, now seen corresponding path program 48 times [2022-02-15 11:33:47,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:47,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657988712] [2022-02-15 11:33:47,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:47,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:48,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:48,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:48,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657988712] [2022-02-15 11:33:48,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657988712] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:48,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:48,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:33:48,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771953572] [2022-02-15 11:33:48,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:48,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:33:48,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:48,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:33:48,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:48,177 INFO L87 Difference]: Start difference. First operand 17163 states and 54336 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:48,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:48,603 INFO L93 Difference]: Finished difference Result 21063 states and 66250 transitions. [2022-02-15 11:33:48,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:33:48,604 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:48,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:48,644 INFO L225 Difference]: With dead ends: 21063 [2022-02-15 11:33:48,645 INFO L226 Difference]: Without dead ends: 19877 [2022-02-15 11:33:48,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:33:48,645 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 536 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:48,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [536 Valid, 1521 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:48,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19877 states. [2022-02-15 11:33:48,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19877 to 16763. [2022-02-15 11:33:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16763 states, 16762 states have (on average 3.1590502326691325) internal successors, (52952), 16762 states have internal predecessors, (52952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:49,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16763 states to 16763 states and 52952 transitions. [2022-02-15 11:33:49,045 INFO L78 Accepts]: Start accepts. Automaton has 16763 states and 52952 transitions. Word has length 134 [2022-02-15 11:33:49,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:49,045 INFO L470 AbstractCegarLoop]: Abstraction has 16763 states and 52952 transitions. [2022-02-15 11:33:49,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:49,045 INFO L276 IsEmpty]: Start isEmpty. Operand 16763 states and 52952 transitions. [2022-02-15 11:33:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:49,071 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:49,072 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] [2022-02-15 11:33:49,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 11:33:49,072 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:49,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:49,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1618028618, now seen corresponding path program 49 times [2022-02-15 11:33:49,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:49,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198903918] [2022-02-15 11:33:49,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:49,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:49,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:49,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198903918] [2022-02-15 11:33:49,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198903918] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:49,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:49,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:33:49,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574805367] [2022-02-15 11:33:49,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:49,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:33:49,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:49,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:33:49,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:49,243 INFO L87 Difference]: Start difference. First operand 16763 states and 52952 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:49,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:49,551 INFO L93 Difference]: Finished difference Result 17399 states and 54797 transitions. [2022-02-15 11:33:49,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 11:33:49,552 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:49,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:49,586 INFO L225 Difference]: With dead ends: 17399 [2022-02-15 11:33:49,586 INFO L226 Difference]: Without dead ends: 16735 [2022-02-15 11:33:49,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:33:49,586 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 246 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:49,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 1024 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:49,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16735 states. [2022-02-15 11:33:49,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16735 to 16711. [2022-02-15 11:33:49,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16711 states, 16710 states have (on average 3.1598444045481746) internal successors, (52801), 16710 states have internal predecessors, (52801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:49,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16711 states to 16711 states and 52801 transitions. [2022-02-15 11:33:49,969 INFO L78 Accepts]: Start accepts. Automaton has 16711 states and 52801 transitions. Word has length 134 [2022-02-15 11:33:49,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:49,969 INFO L470 AbstractCegarLoop]: Abstraction has 16711 states and 52801 transitions. [2022-02-15 11:33:49,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:49,970 INFO L276 IsEmpty]: Start isEmpty. Operand 16711 states and 52801 transitions. [2022-02-15 11:33:49,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:49,997 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:49,997 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] [2022-02-15 11:33:49,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-15 11:33:49,997 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:49,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:49,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1215762510, now seen corresponding path program 50 times [2022-02-15 11:33:49,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:49,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118591940] [2022-02-15 11:33:49,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:49,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:50,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:50,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:50,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118591940] [2022-02-15 11:33:50,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118591940] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:50,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:50,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:33:50,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737114753] [2022-02-15 11:33:50,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:50,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:33:50,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:50,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:33:50,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:50,159 INFO L87 Difference]: Start difference. First operand 16711 states and 52801 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:50,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:50,586 INFO L93 Difference]: Finished difference Result 17627 states and 55495 transitions. [2022-02-15 11:33:50,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:33:50,586 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:50,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:50,623 INFO L225 Difference]: With dead ends: 17627 [2022-02-15 11:33:50,624 INFO L226 Difference]: Without dead ends: 17015 [2022-02-15 11:33:50,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:33:50,624 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 234 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:50,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 1197 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17015 states. [2022-02-15 11:33:50,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17015 to 16779. [2022-02-15 11:33:50,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16779 states, 16778 states have (on average 3.1569912981285015) internal successors, (52968), 16778 states have internal predecessors, (52968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:51,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16779 states to 16779 states and 52968 transitions. [2022-02-15 11:33:51,025 INFO L78 Accepts]: Start accepts. Automaton has 16779 states and 52968 transitions. Word has length 134 [2022-02-15 11:33:51,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:51,025 INFO L470 AbstractCegarLoop]: Abstraction has 16779 states and 52968 transitions. [2022-02-15 11:33:51,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:51,025 INFO L276 IsEmpty]: Start isEmpty. Operand 16779 states and 52968 transitions. [2022-02-15 11:33:51,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:51,051 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:51,051 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] [2022-02-15 11:33:51,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-15 11:33:51,051 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:51,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:51,052 INFO L85 PathProgramCache]: Analyzing trace with hash -483912430, now seen corresponding path program 51 times [2022-02-15 11:33:51,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:51,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828856796] [2022-02-15 11:33:51,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:51,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:51,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:51,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828856796] [2022-02-15 11:33:51,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828856796] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:51,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:51,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:33:51,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165451122] [2022-02-15 11:33:51,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:51,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:33:51,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:51,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:33:51,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:51,201 INFO L87 Difference]: Start difference. First operand 16779 states and 52968 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:51,580 INFO L93 Difference]: Finished difference Result 17707 states and 55683 transitions. [2022-02-15 11:33:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 11:33:51,581 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:51,620 INFO L225 Difference]: With dead ends: 17707 [2022-02-15 11:33:51,620 INFO L226 Difference]: Without dead ends: 17051 [2022-02-15 11:33:51,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-15 11:33:51,622 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 326 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:51,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 1032 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:51,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17051 states. [2022-02-15 11:33:51,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17051 to 16735. [2022-02-15 11:33:52,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16735 states, 16734 states have (on average 3.157344328911199) internal successors, (52835), 16734 states have internal predecessors, (52835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16735 states to 16735 states and 52835 transitions. [2022-02-15 11:33:52,049 INFO L78 Accepts]: Start accepts. Automaton has 16735 states and 52835 transitions. Word has length 134 [2022-02-15 11:33:52,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:52,049 INFO L470 AbstractCegarLoop]: Abstraction has 16735 states and 52835 transitions. [2022-02-15 11:33:52,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:52,049 INFO L276 IsEmpty]: Start isEmpty. Operand 16735 states and 52835 transitions. [2022-02-15 11:33:52,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:52,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:52,075 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] [2022-02-15 11:33:52,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-15 11:33:52,076 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:52,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:52,076 INFO L85 PathProgramCache]: Analyzing trace with hash -453718160, now seen corresponding path program 52 times [2022-02-15 11:33:52,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:52,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315963768] [2022-02-15 11:33:52,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:52,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:52,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:52,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:52,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315963768] [2022-02-15 11:33:52,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315963768] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:52,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:52,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:33:52,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419499060] [2022-02-15 11:33:52,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:52,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:33:52,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:52,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:33:52,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:52,212 INFO L87 Difference]: Start difference. First operand 16735 states and 52835 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:52,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:52,465 INFO L93 Difference]: Finished difference Result 17507 states and 55110 transitions. [2022-02-15 11:33:52,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:33:52,465 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:52,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:52,501 INFO L225 Difference]: With dead ends: 17507 [2022-02-15 11:33:52,501 INFO L226 Difference]: Without dead ends: 16817 [2022-02-15 11:33:52,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:52,502 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 231 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:52,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 882 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16817 states. [2022-02-15 11:33:52,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16817 to 16705. [2022-02-15 11:33:52,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16705 states, 16704 states have (on average 3.1555914750957856) internal successors, (52711), 16704 states have internal predecessors, (52711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:52,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16705 states to 16705 states and 52711 transitions. [2022-02-15 11:33:52,896 INFO L78 Accepts]: Start accepts. Automaton has 16705 states and 52711 transitions. Word has length 134 [2022-02-15 11:33:52,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:52,896 INFO L470 AbstractCegarLoop]: Abstraction has 16705 states and 52711 transitions. [2022-02-15 11:33:52,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:52,896 INFO L276 IsEmpty]: Start isEmpty. Operand 16705 states and 52711 transitions. [2022-02-15 11:33:52,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:52,922 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:52,922 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] [2022-02-15 11:33:52,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 11:33:52,923 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:52,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:52,923 INFO L85 PathProgramCache]: Analyzing trace with hash 478868350, now seen corresponding path program 53 times [2022-02-15 11:33:52,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:52,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694685282] [2022-02-15 11:33:52,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:52,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:53,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:53,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:53,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694685282] [2022-02-15 11:33:53,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694685282] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:53,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:53,061 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:33:53,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260083240] [2022-02-15 11:33:53,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:53,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:33:53,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:53,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:33:53,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:53,062 INFO L87 Difference]: Start difference. First operand 16705 states and 52711 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:53,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:53,492 INFO L93 Difference]: Finished difference Result 22213 states and 70726 transitions. [2022-02-15 11:33:53,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:33:53,492 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:53,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:53,537 INFO L225 Difference]: With dead ends: 22213 [2022-02-15 11:33:53,537 INFO L226 Difference]: Without dead ends: 20577 [2022-02-15 11:33:53,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:33:53,537 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 242 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:53,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1285 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:53,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20577 states. [2022-02-15 11:33:53,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20577 to 15765. [2022-02-15 11:33:53,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15765 states, 15764 states have (on average 3.1495813245369195) internal successors, (49650), 15764 states have internal predecessors, (49650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:53,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15765 states to 15765 states and 49650 transitions. [2022-02-15 11:33:53,933 INFO L78 Accepts]: Start accepts. Automaton has 15765 states and 49650 transitions. Word has length 134 [2022-02-15 11:33:53,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:53,933 INFO L470 AbstractCegarLoop]: Abstraction has 15765 states and 49650 transitions. [2022-02-15 11:33:53,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:53,933 INFO L276 IsEmpty]: Start isEmpty. Operand 15765 states and 49650 transitions. [2022-02-15 11:33:53,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:53,959 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:53,959 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] [2022-02-15 11:33:53,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 11:33:53,959 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:53,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:53,959 INFO L85 PathProgramCache]: Analyzing trace with hash -150451716, now seen corresponding path program 54 times [2022-02-15 11:33:53,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:53,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718127008] [2022-02-15 11:33:53,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:53,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:54,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:54,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718127008] [2022-02-15 11:33:54,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718127008] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:54,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:54,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:33:54,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557402661] [2022-02-15 11:33:54,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:54,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:33:54,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:54,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:33:54,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:54,124 INFO L87 Difference]: Start difference. First operand 15765 states and 49650 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:54,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:54,566 INFO L93 Difference]: Finished difference Result 16661 states and 52281 transitions. [2022-02-15 11:33:54,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 11:33:54,566 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:54,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:54,602 INFO L225 Difference]: With dead ends: 16661 [2022-02-15 11:33:54,602 INFO L226 Difference]: Without dead ends: 15961 [2022-02-15 11:33:54,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-02-15 11:33:54,603 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 305 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:54,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1154 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:54,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15961 states. [2022-02-15 11:33:54,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15961 to 15725. [2022-02-15 11:33:54,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15725 states, 15724 states have (on average 3.143220554566268) internal successors, (49424), 15724 states have internal predecessors, (49424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:54,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15725 states to 15725 states and 49424 transitions. [2022-02-15 11:33:54,972 INFO L78 Accepts]: Start accepts. Automaton has 15725 states and 49424 transitions. Word has length 134 [2022-02-15 11:33:54,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:54,972 INFO L470 AbstractCegarLoop]: Abstraction has 15725 states and 49424 transitions. [2022-02-15 11:33:54,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:54,972 INFO L276 IsEmpty]: Start isEmpty. Operand 15725 states and 49424 transitions. [2022-02-15 11:33:54,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:54,999 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:55,000 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] [2022-02-15 11:33:55,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-15 11:33:55,000 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:55,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:55,000 INFO L85 PathProgramCache]: Analyzing trace with hash 511737310, now seen corresponding path program 55 times [2022-02-15 11:33:55,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:55,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487450502] [2022-02-15 11:33:55,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:55,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:55,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:55,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:55,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487450502] [2022-02-15 11:33:55,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487450502] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:55,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:55,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:33:55,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816457845] [2022-02-15 11:33:55,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:55,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:33:55,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:55,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:33:55,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:55,187 INFO L87 Difference]: Start difference. First operand 15725 states and 49424 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:55,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:55,548 INFO L93 Difference]: Finished difference Result 16241 states and 50851 transitions. [2022-02-15 11:33:55,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 11:33:55,548 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:55,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:55,582 INFO L225 Difference]: With dead ends: 16241 [2022-02-15 11:33:55,583 INFO L226 Difference]: Without dead ends: 15517 [2022-02-15 11:33:55,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:33:55,583 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 221 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:55,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 1143 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:55,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15517 states. [2022-02-15 11:33:55,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15517 to 15337. [2022-02-15 11:33:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15337 states, 15336 states have (on average 3.1466484089723528) internal successors, (48257), 15336 states have internal predecessors, (48257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15337 states to 15337 states and 48257 transitions. [2022-02-15 11:33:56,021 INFO L78 Accepts]: Start accepts. Automaton has 15337 states and 48257 transitions. Word has length 134 [2022-02-15 11:33:56,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:56,021 INFO L470 AbstractCegarLoop]: Abstraction has 15337 states and 48257 transitions. [2022-02-15 11:33:56,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:56,021 INFO L276 IsEmpty]: Start isEmpty. Operand 15337 states and 48257 transitions. [2022-02-15 11:33:56,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:56,050 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:56,050 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] [2022-02-15 11:33:56,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-15 11:33:56,050 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:56,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:56,051 INFO L85 PathProgramCache]: Analyzing trace with hash -94591378, now seen corresponding path program 56 times [2022-02-15 11:33:56,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:56,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205014795] [2022-02-15 11:33:56,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:56,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:56,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:56,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:56,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205014795] [2022-02-15 11:33:56,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205014795] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:56,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:56,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 11:33:56,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927727717] [2022-02-15 11:33:56,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:56,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 11:33:56,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:56,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 11:33:56,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-15 11:33:56,198 INFO L87 Difference]: Start difference. First operand 15337 states and 48257 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:56,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:56,405 INFO L93 Difference]: Finished difference Result 12378 states and 37340 transitions. [2022-02-15 11:33:56,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 11:33:56,406 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:56,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:56,428 INFO L225 Difference]: With dead ends: 12378 [2022-02-15 11:33:56,429 INFO L226 Difference]: Without dead ends: 11532 [2022-02-15 11:33:56,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:33:56,429 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 105 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:56,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 681 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:33:56,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11532 states. [2022-02-15 11:33:56,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11532 to 10604. [2022-02-15 11:33:56,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10604 states, 10603 states have (on average 3.0270678109968876) internal successors, (32096), 10603 states have internal predecessors, (32096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:56,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10604 states to 10604 states and 32096 transitions. [2022-02-15 11:33:56,600 INFO L78 Accepts]: Start accepts. Automaton has 10604 states and 32096 transitions. Word has length 134 [2022-02-15 11:33:56,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:56,600 INFO L470 AbstractCegarLoop]: Abstraction has 10604 states and 32096 transitions. [2022-02-15 11:33:56,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:56,600 INFO L276 IsEmpty]: Start isEmpty. Operand 10604 states and 32096 transitions. [2022-02-15 11:33:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:56,616 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:56,616 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] [2022-02-15 11:33:56,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-15 11:33:56,616 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:56,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:56,617 INFO L85 PathProgramCache]: Analyzing trace with hash 836721524, now seen corresponding path program 57 times [2022-02-15 11:33:56,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:56,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260562584] [2022-02-15 11:33:56,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:56,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:56,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:56,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260562584] [2022-02-15 11:33:56,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260562584] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:56,686 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:56,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:33:56,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139570081] [2022-02-15 11:33:56,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:56,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:33:56,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:56,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:33:56,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:33:56,687 INFO L87 Difference]: Start difference. First operand 10604 states and 32096 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:56,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:56,850 INFO L93 Difference]: Finished difference Result 11885 states and 35829 transitions. [2022-02-15 11:33:56,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:33:56,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:56,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:56,871 INFO L225 Difference]: With dead ends: 11885 [2022-02-15 11:33:56,871 INFO L226 Difference]: Without dead ends: 10700 [2022-02-15 11:33:56,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:56,872 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 300 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:56,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 514 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:33:56,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10700 states. [2022-02-15 11:33:57,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10700 to 10379. [2022-02-15 11:33:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 3.021487762574677) internal successors, (31357), 10378 states have internal predecessors, (31357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:57,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 31357 transitions. [2022-02-15 11:33:57,123 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 31357 transitions. Word has length 134 [2022-02-15 11:33:57,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:57,123 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 31357 transitions. [2022-02-15 11:33:57,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:57,123 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 31357 transitions. [2022-02-15 11:33:57,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:57,137 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:57,138 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] [2022-02-15 11:33:57,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-15 11:33:57,138 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:57,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:57,138 INFO L85 PathProgramCache]: Analyzing trace with hash 305020626, now seen corresponding path program 58 times [2022-02-15 11:33:57,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:57,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307478932] [2022-02-15 11:33:57,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:57,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:57,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:57,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:57,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307478932] [2022-02-15 11:33:57,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307478932] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:57,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:57,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:33:57,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570551126] [2022-02-15 11:33:57,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:57,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:33:57,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:57,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:33:57,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:57,307 INFO L87 Difference]: Start difference. First operand 10379 states and 31357 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:57,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:57,688 INFO L93 Difference]: Finished difference Result 12663 states and 38200 transitions. [2022-02-15 11:33:57,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:33:57,688 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:57,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:57,710 INFO L225 Difference]: With dead ends: 12663 [2022-02-15 11:33:57,710 INFO L226 Difference]: Without dead ends: 12067 [2022-02-15 11:33:57,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:33:57,711 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 287 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:57,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 1199 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:33:57,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12067 states. [2022-02-15 11:33:57,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12067 to 10379. [2022-02-15 11:33:57,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 3.0201387550587784) internal successors, (31343), 10378 states have internal predecessors, (31343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:57,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 31343 transitions. [2022-02-15 11:33:57,870 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 31343 transitions. Word has length 134 [2022-02-15 11:33:57,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:57,870 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 31343 transitions. [2022-02-15 11:33:57,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:57,870 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 31343 transitions. [2022-02-15 11:33:57,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:57,885 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:57,885 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] [2022-02-15 11:33:57,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-15 11:33:57,885 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:57,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:57,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1696528394, now seen corresponding path program 59 times [2022-02-15 11:33:57,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:57,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462539099] [2022-02-15 11:33:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:57,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:58,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:58,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462539099] [2022-02-15 11:33:58,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462539099] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:58,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:58,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:33:58,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658681244] [2022-02-15 11:33:58,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:58,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:33:58,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:58,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:33:58,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:33:58,073 INFO L87 Difference]: Start difference. First operand 10379 states and 31343 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:58,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:58,404 INFO L93 Difference]: Finished difference Result 11369 states and 34099 transitions. [2022-02-15 11:33:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:33:58,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:58,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:58,426 INFO L225 Difference]: With dead ends: 11369 [2022-02-15 11:33:58,426 INFO L226 Difference]: Without dead ends: 10319 [2022-02-15 11:33:58,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:33:58,426 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 214 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:58,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 764 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:33:58,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10319 states. [2022-02-15 11:33:58,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10319 to 10239. [2022-02-15 11:33:58,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10239 states, 10238 states have (on average 3.017776909552647) internal successors, (30896), 10238 states have internal predecessors, (30896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:58,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10239 states to 10239 states and 30896 transitions. [2022-02-15 11:33:58,616 INFO L78 Accepts]: Start accepts. Automaton has 10239 states and 30896 transitions. Word has length 134 [2022-02-15 11:33:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:58,616 INFO L470 AbstractCegarLoop]: Abstraction has 10239 states and 30896 transitions. [2022-02-15 11:33:58,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 10239 states and 30896 transitions. [2022-02-15 11:33:58,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:58,636 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:58,636 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] [2022-02-15 11:33:58,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-15 11:33:58,636 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:58,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:58,636 INFO L85 PathProgramCache]: Analyzing trace with hash 467689716, now seen corresponding path program 60 times [2022-02-15 11:33:58,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:58,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117821890] [2022-02-15 11:33:58,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:58,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:58,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:58,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117821890] [2022-02-15 11:33:58,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117821890] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:58,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:58,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:33:58,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560084762] [2022-02-15 11:33:58,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:58,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:33:58,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:58,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:33:58,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:33:58,778 INFO L87 Difference]: Start difference. First operand 10239 states and 30896 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:59,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:59,371 INFO L93 Difference]: Finished difference Result 15099 states and 45452 transitions. [2022-02-15 11:33:59,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 11:33:59,371 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:33:59,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:59,401 INFO L225 Difference]: With dead ends: 15099 [2022-02-15 11:33:59,401 INFO L226 Difference]: Without dead ends: 13602 [2022-02-15 11:33:59,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2022-02-15 11:33:59,402 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 615 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:59,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [615 Valid, 1214 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 11:33:59,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13602 states. [2022-02-15 11:33:59,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13602 to 10461. [2022-02-15 11:33:59,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10461 states, 10460 states have (on average 3.0165391969407267) internal successors, (31553), 10460 states have internal predecessors, (31553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:59,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 31553 transitions. [2022-02-15 11:33:59,692 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 31553 transitions. Word has length 134 [2022-02-15 11:33:59,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:59,692 INFO L470 AbstractCegarLoop]: Abstraction has 10461 states and 31553 transitions. [2022-02-15 11:33:59,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:59,692 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 31553 transitions. [2022-02-15 11:33:59,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:33:59,706 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:59,706 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] [2022-02-15 11:33:59,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-15 11:33:59,706 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:33:59,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:59,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1511839170, now seen corresponding path program 61 times [2022-02-15 11:33:59,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:59,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697672427] [2022-02-15 11:33:59,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:59,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:59,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:59,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697672427] [2022-02-15 11:33:59,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697672427] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:59,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:59,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:33:59,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381798155] [2022-02-15 11:33:59,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:59,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:33:59,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:59,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:33:59,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:33:59,872 INFO L87 Difference]: Start difference. First operand 10461 states and 31553 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:00,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:00,341 INFO L93 Difference]: Finished difference Result 16495 states and 50046 transitions. [2022-02-15 11:34:00,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 11:34:00,341 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:00,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:00,373 INFO L225 Difference]: With dead ends: 16495 [2022-02-15 11:34:00,374 INFO L226 Difference]: Without dead ends: 15458 [2022-02-15 11:34:00,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:34:00,374 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 465 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:00,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 1504 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:34:00,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15458 states. [2022-02-15 11:34:00,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15458 to 10374. [2022-02-15 11:34:00,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10374 states, 10373 states have (on average 3.0065554805745687) internal successors, (31187), 10373 states have internal predecessors, (31187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:00,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10374 states to 10374 states and 31187 transitions. [2022-02-15 11:34:00,580 INFO L78 Accepts]: Start accepts. Automaton has 10374 states and 31187 transitions. Word has length 134 [2022-02-15 11:34:00,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:00,580 INFO L470 AbstractCegarLoop]: Abstraction has 10374 states and 31187 transitions. [2022-02-15 11:34:00,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:00,581 INFO L276 IsEmpty]: Start isEmpty. Operand 10374 states and 31187 transitions. [2022-02-15 11:34:00,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:00,596 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:00,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:34:00,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-15 11:34:00,596 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:00,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:00,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1885099948, now seen corresponding path program 62 times [2022-02-15 11:34:00,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:00,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597988564] [2022-02-15 11:34:00,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:00,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:00,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:00,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597988564] [2022-02-15 11:34:00,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597988564] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:00,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:00,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:34:00,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914887217] [2022-02-15 11:34:00,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:00,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:34:00,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:00,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:34:00,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:00,786 INFO L87 Difference]: Start difference. First operand 10374 states and 31187 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:01,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:01,078 INFO L93 Difference]: Finished difference Result 11243 states and 33756 transitions. [2022-02-15 11:34:01,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:34:01,078 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:01,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:01,098 INFO L225 Difference]: With dead ends: 11243 [2022-02-15 11:34:01,098 INFO L226 Difference]: Without dead ends: 10358 [2022-02-15 11:34:01,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:34:01,101 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 203 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:01,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 795 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:01,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10358 states. [2022-02-15 11:34:01,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10358 to 10248. [2022-02-15 11:34:01,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10248 states, 10247 states have (on average 3.002049380306431) internal successors, (30762), 10247 states have internal predecessors, (30762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:01,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10248 states to 10248 states and 30762 transitions. [2022-02-15 11:34:01,347 INFO L78 Accepts]: Start accepts. Automaton has 10248 states and 30762 transitions. Word has length 134 [2022-02-15 11:34:01,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:01,347 INFO L470 AbstractCegarLoop]: Abstraction has 10248 states and 30762 transitions. [2022-02-15 11:34:01,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:01,347 INFO L276 IsEmpty]: Start isEmpty. Operand 10248 states and 30762 transitions. [2022-02-15 11:34:01,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:01,362 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:01,362 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] [2022-02-15 11:34:01,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-15 11:34:01,362 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:01,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:01,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1638115794, now seen corresponding path program 63 times [2022-02-15 11:34:01,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:01,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525599683] [2022-02-15 11:34:01,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:01,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:01,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:01,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525599683] [2022-02-15 11:34:01,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525599683] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:01,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:01,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:34:01,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257855370] [2022-02-15 11:34:01,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:01,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:34:01,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:01,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:34:01,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:01,501 INFO L87 Difference]: Start difference. First operand 10248 states and 30762 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:01,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:01,884 INFO L93 Difference]: Finished difference Result 11045 states and 33121 transitions. [2022-02-15 11:34:01,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 11:34:01,884 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:01,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:01,904 INFO L225 Difference]: With dead ends: 11045 [2022-02-15 11:34:01,905 INFO L226 Difference]: Without dead ends: 9950 [2022-02-15 11:34:01,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-02-15 11:34:01,905 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 334 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:01,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1218 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:34:01,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9950 states. [2022-02-15 11:34:02,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9950 to 9782. [2022-02-15 11:34:02,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9782 states, 9781 states have (on average 2.9986708925467744) internal successors, (29330), 9781 states have internal predecessors, (29330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 29330 transitions. [2022-02-15 11:34:02,049 INFO L78 Accepts]: Start accepts. Automaton has 9782 states and 29330 transitions. Word has length 134 [2022-02-15 11:34:02,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:02,049 INFO L470 AbstractCegarLoop]: Abstraction has 9782 states and 29330 transitions. [2022-02-15 11:34:02,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 9782 states and 29330 transitions. [2022-02-15 11:34:02,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:02,063 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:02,063 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] [2022-02-15 11:34:02,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-15 11:34:02,063 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:02,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:02,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1353275712, now seen corresponding path program 64 times [2022-02-15 11:34:02,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:02,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539335922] [2022-02-15 11:34:02,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:02,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:02,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:02,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:02,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539335922] [2022-02-15 11:34:02,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539335922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:02,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:02,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:34:02,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90614726] [2022-02-15 11:34:02,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:02,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:34:02,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:02,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:34:02,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:02,227 INFO L87 Difference]: Start difference. First operand 9782 states and 29330 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:02,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:02,491 INFO L93 Difference]: Finished difference Result 12044 states and 35936 transitions. [2022-02-15 11:34:02,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 11:34:02,492 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:02,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:02,515 INFO L225 Difference]: With dead ends: 12044 [2022-02-15 11:34:02,515 INFO L226 Difference]: Without dead ends: 11088 [2022-02-15 11:34:02,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:34:02,515 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 443 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:02,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 845 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:02,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11088 states. [2022-02-15 11:34:02,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11088 to 9794. [2022-02-15 11:34:02,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9794 states, 9793 states have (on average 2.997957724905545) internal successors, (29359), 9793 states have internal predecessors, (29359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9794 states to 9794 states and 29359 transitions. [2022-02-15 11:34:02,794 INFO L78 Accepts]: Start accepts. Automaton has 9794 states and 29359 transitions. Word has length 134 [2022-02-15 11:34:02,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:02,794 INFO L470 AbstractCegarLoop]: Abstraction has 9794 states and 29359 transitions. [2022-02-15 11:34:02,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:02,794 INFO L276 IsEmpty]: Start isEmpty. Operand 9794 states and 29359 transitions. [2022-02-15 11:34:02,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:02,809 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:02,809 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] [2022-02-15 11:34:02,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-15 11:34:02,809 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:02,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:02,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1784824628, now seen corresponding path program 65 times [2022-02-15 11:34:02,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:02,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614153292] [2022-02-15 11:34:02,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:02,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:02,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:02,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614153292] [2022-02-15 11:34:02,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614153292] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:02,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:02,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:34:02,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357305593] [2022-02-15 11:34:02,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:02,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:34:02,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:02,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:34:02,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:34:02,991 INFO L87 Difference]: Start difference. First operand 9794 states and 29359 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:03,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:03,291 INFO L93 Difference]: Finished difference Result 11403 states and 34065 transitions. [2022-02-15 11:34:03,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 11:34:03,291 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:03,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:03,312 INFO L225 Difference]: With dead ends: 11403 [2022-02-15 11:34:03,312 INFO L226 Difference]: Without dead ends: 10483 [2022-02-15 11:34:03,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:03,312 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 201 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:03,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 961 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:03,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10483 states. [2022-02-15 11:34:03,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10483 to 9714. [2022-02-15 11:34:03,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9714 states, 9713 states have (on average 2.997940903943169) internal successors, (29119), 9713 states have internal predecessors, (29119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:03,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9714 states to 9714 states and 29119 transitions. [2022-02-15 11:34:03,476 INFO L78 Accepts]: Start accepts. Automaton has 9714 states and 29119 transitions. Word has length 134 [2022-02-15 11:34:03,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:03,477 INFO L470 AbstractCegarLoop]: Abstraction has 9714 states and 29119 transitions. [2022-02-15 11:34:03,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:03,477 INFO L276 IsEmpty]: Start isEmpty. Operand 9714 states and 29119 transitions. [2022-02-15 11:34:03,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:03,491 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:03,491 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] [2022-02-15 11:34:03,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-15 11:34:03,491 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:03,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:03,491 INFO L85 PathProgramCache]: Analyzing trace with hash -618499330, now seen corresponding path program 66 times [2022-02-15 11:34:03,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:03,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106590241] [2022-02-15 11:34:03,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:03,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:03,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:03,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:03,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106590241] [2022-02-15 11:34:03,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106590241] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:03,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:03,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 11:34:03,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119301956] [2022-02-15 11:34:03,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:03,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 11:34:03,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:03,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 11:34:03,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-15 11:34:03,614 INFO L87 Difference]: Start difference. First operand 9714 states and 29119 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:03,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:03,782 INFO L93 Difference]: Finished difference Result 10906 states and 32588 transitions. [2022-02-15 11:34:03,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 11:34:03,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:03,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:03,800 INFO L225 Difference]: With dead ends: 10906 [2022-02-15 11:34:03,801 INFO L226 Difference]: Without dead ends: 10654 [2022-02-15 11:34:03,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:34:03,801 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 149 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:03,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 585 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:03,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10654 states. [2022-02-15 11:34:03,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10654 to 10170. [2022-02-15 11:34:03,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10170 states, 10169 states have (on average 2.996951519323434) internal successors, (30476), 10169 states have internal predecessors, (30476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:04,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10170 states to 10170 states and 30476 transitions. [2022-02-15 11:34:04,018 INFO L78 Accepts]: Start accepts. Automaton has 10170 states and 30476 transitions. Word has length 134 [2022-02-15 11:34:04,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:04,018 INFO L470 AbstractCegarLoop]: Abstraction has 10170 states and 30476 transitions. [2022-02-15 11:34:04,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:04,018 INFO L276 IsEmpty]: Start isEmpty. Operand 10170 states and 30476 transitions. [2022-02-15 11:34:04,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:04,032 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:04,032 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] [2022-02-15 11:34:04,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-15 11:34:04,032 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:04,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:04,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1618259678, now seen corresponding path program 67 times [2022-02-15 11:34:04,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:04,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056690474] [2022-02-15 11:34:04,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:04,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:04,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:04,093 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:04,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056690474] [2022-02-15 11:34:04,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056690474] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:04,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:04,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:34:04,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170191574] [2022-02-15 11:34:04,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:04,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:34:04,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:04,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:34:04,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:34:04,094 INFO L87 Difference]: Start difference. First operand 10170 states and 30476 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:04,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:04,237 INFO L93 Difference]: Finished difference Result 11098 states and 33250 transitions. [2022-02-15 11:34:04,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:34:04,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:04,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:04,255 INFO L225 Difference]: With dead ends: 11098 [2022-02-15 11:34:04,255 INFO L226 Difference]: Without dead ends: 9775 [2022-02-15 11:34:04,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:04,255 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 361 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:04,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 412 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:04,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9775 states. [2022-02-15 11:34:04,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9775 to 9707. [2022-02-15 11:34:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9707 states, 9706 states have (on average 2.988975891201319) internal successors, (29011), 9706 states have internal predecessors, (29011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:04,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9707 states to 9707 states and 29011 transitions. [2022-02-15 11:34:04,387 INFO L78 Accepts]: Start accepts. Automaton has 9707 states and 29011 transitions. Word has length 134 [2022-02-15 11:34:04,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:04,387 INFO L470 AbstractCegarLoop]: Abstraction has 9707 states and 29011 transitions. [2022-02-15 11:34:04,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 9707 states and 29011 transitions. [2022-02-15 11:34:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:04,402 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:04,402 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] [2022-02-15 11:34:04,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-15 11:34:04,402 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:04,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:04,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1860242304, now seen corresponding path program 68 times [2022-02-15 11:34:04,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:04,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410937885] [2022-02-15 11:34:04,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:04,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:04,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:04,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:04,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410937885] [2022-02-15 11:34:04,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410937885] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:04,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:04,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:34:04,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890277216] [2022-02-15 11:34:04,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:04,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:34:04,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:34:04,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:04,585 INFO L87 Difference]: Start difference. First operand 9707 states and 29011 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:04,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:04,850 INFO L93 Difference]: Finished difference Result 11835 states and 35425 transitions. [2022-02-15 11:34:04,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 11:34:04,850 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:04,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:04,942 INFO L225 Difference]: With dead ends: 11835 [2022-02-15 11:34:04,942 INFO L226 Difference]: Without dead ends: 11017 [2022-02-15 11:34:04,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-02-15 11:34:04,942 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 281 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:04,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 1221 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:04,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11017 states. [2022-02-15 11:34:05,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11017 to 9526. [2022-02-15 11:34:05,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9526 states, 9525 states have (on average 2.979212598425197) internal successors, (28377), 9525 states have internal predecessors, (28377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:05,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9526 states to 9526 states and 28377 transitions. [2022-02-15 11:34:05,099 INFO L78 Accepts]: Start accepts. Automaton has 9526 states and 28377 transitions. Word has length 134 [2022-02-15 11:34:05,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:05,099 INFO L470 AbstractCegarLoop]: Abstraction has 9526 states and 28377 transitions. [2022-02-15 11:34:05,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:05,100 INFO L276 IsEmpty]: Start isEmpty. Operand 9526 states and 28377 transitions. [2022-02-15 11:34:05,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:05,115 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:05,115 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] [2022-02-15 11:34:05,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-15 11:34:05,115 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:05,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:05,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1088490750, now seen corresponding path program 69 times [2022-02-15 11:34:05,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:05,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907968456] [2022-02-15 11:34:05,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:05,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:05,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:05,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:05,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907968456] [2022-02-15 11:34:05,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907968456] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:05,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:05,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:34:05,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108571665] [2022-02-15 11:34:05,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:05,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:34:05,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:05,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:34:05,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:05,254 INFO L87 Difference]: Start difference. First operand 9526 states and 28377 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:05,530 INFO L93 Difference]: Finished difference Result 10129 states and 30114 transitions. [2022-02-15 11:34:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:34:05,530 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:05,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:05,547 INFO L225 Difference]: With dead ends: 10129 [2022-02-15 11:34:05,547 INFO L226 Difference]: Without dead ends: 9464 [2022-02-15 11:34:05,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:34:05,547 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 227 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:05,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 1013 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:05,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9464 states. [2022-02-15 11:34:05,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9464 to 8545. [2022-02-15 11:34:05,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8545 states, 8544 states have (on average 2.9737827715355807) internal successors, (25408), 8544 states have internal predecessors, (25408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:05,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8545 states to 8545 states and 25408 transitions. [2022-02-15 11:34:05,670 INFO L78 Accepts]: Start accepts. Automaton has 8545 states and 25408 transitions. Word has length 134 [2022-02-15 11:34:05,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:05,670 INFO L470 AbstractCegarLoop]: Abstraction has 8545 states and 25408 transitions. [2022-02-15 11:34:05,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:05,670 INFO L276 IsEmpty]: Start isEmpty. Operand 8545 states and 25408 transitions. [2022-02-15 11:34:05,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:05,681 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:05,681 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] [2022-02-15 11:34:05,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-15 11:34:05,682 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:05,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:05,682 INFO L85 PathProgramCache]: Analyzing trace with hash 918766790, now seen corresponding path program 70 times [2022-02-15 11:34:05,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:05,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236641279] [2022-02-15 11:34:05,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:05,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:05,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:05,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:05,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236641279] [2022-02-15 11:34:05,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236641279] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:05,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:05,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:34:05,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018561404] [2022-02-15 11:34:05,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:05,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:34:05,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:05,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:34:05,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:34:05,846 INFO L87 Difference]: Start difference. First operand 8545 states and 25408 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:06,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:06,085 INFO L93 Difference]: Finished difference Result 8144 states and 24093 transitions. [2022-02-15 11:34:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:34:06,085 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:06,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:06,098 INFO L225 Difference]: With dead ends: 8144 [2022-02-15 11:34:06,098 INFO L226 Difference]: Without dead ends: 7382 [2022-02-15 11:34:06,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:34:06,099 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 170 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:06,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 816 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:06,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7382 states. [2022-02-15 11:34:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7382 to 7366. [2022-02-15 11:34:06,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7366 states, 7365 states have (on average 2.9691785471826204) internal successors, (21868), 7365 states have internal predecessors, (21868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:06,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7366 states to 7366 states and 21868 transitions. [2022-02-15 11:34:06,233 INFO L78 Accepts]: Start accepts. Automaton has 7366 states and 21868 transitions. Word has length 134 [2022-02-15 11:34:06,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:06,233 INFO L470 AbstractCegarLoop]: Abstraction has 7366 states and 21868 transitions. [2022-02-15 11:34:06,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:06,233 INFO L276 IsEmpty]: Start isEmpty. Operand 7366 states and 21868 transitions. [2022-02-15 11:34:06,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:06,244 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:06,244 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] [2022-02-15 11:34:06,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-15 11:34:06,244 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:06,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:06,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1513117698, now seen corresponding path program 71 times [2022-02-15 11:34:06,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:06,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21056439] [2022-02-15 11:34:06,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:06,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:06,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:06,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:06,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21056439] [2022-02-15 11:34:06,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21056439] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:06,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:06,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:34:06,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278098618] [2022-02-15 11:34:06,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:06,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:34:06,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:06,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:34:06,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:34:06,393 INFO L87 Difference]: Start difference. First operand 7366 states and 21868 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:06,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:06,683 INFO L93 Difference]: Finished difference Result 8342 states and 24692 transitions. [2022-02-15 11:34:06,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 11:34:06,683 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:06,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:06,695 INFO L225 Difference]: With dead ends: 8342 [2022-02-15 11:34:06,695 INFO L226 Difference]: Without dead ends: 7338 [2022-02-15 11:34:06,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-02-15 11:34:06,696 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 213 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:06,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 1211 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:06,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7338 states. [2022-02-15 11:34:06,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7338 to 7314. [2022-02-15 11:34:06,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7314 states, 7313 states have (on average 2.965814303295501) internal successors, (21689), 7313 states have internal predecessors, (21689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:06,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7314 states to 7314 states and 21689 transitions. [2022-02-15 11:34:06,792 INFO L78 Accepts]: Start accepts. Automaton has 7314 states and 21689 transitions. Word has length 134 [2022-02-15 11:34:06,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:06,792 INFO L470 AbstractCegarLoop]: Abstraction has 7314 states and 21689 transitions. [2022-02-15 11:34:06,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:06,792 INFO L276 IsEmpty]: Start isEmpty. Operand 7314 states and 21689 transitions. [2022-02-15 11:34:06,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:06,803 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:06,803 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] [2022-02-15 11:34:06,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-15 11:34:06,803 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:06,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:06,803 INFO L85 PathProgramCache]: Analyzing trace with hash -781267618, now seen corresponding path program 72 times [2022-02-15 11:34:06,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:06,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962366203] [2022-02-15 11:34:06,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:06,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:07,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:07,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962366203] [2022-02-15 11:34:07,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962366203] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:07,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:07,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:34:07,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353273181] [2022-02-15 11:34:07,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:07,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:34:07,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:07,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:34:07,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:34:07,018 INFO L87 Difference]: Start difference. First operand 7314 states and 21689 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:07,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:07,259 INFO L93 Difference]: Finished difference Result 8634 states and 25649 transitions. [2022-02-15 11:34:07,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:34:07,260 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:07,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:07,273 INFO L225 Difference]: With dead ends: 8634 [2022-02-15 11:34:07,274 INFO L226 Difference]: Without dead ends: 8026 [2022-02-15 11:34:07,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-15 11:34:07,274 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 320 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:07,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1096 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:07,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8026 states. [2022-02-15 11:34:07,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8026 to 7330. [2022-02-15 11:34:07,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7330 states, 7329 states have (on average 2.9615227179697095) internal successors, (21705), 7329 states have internal predecessors, (21705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:07,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7330 states to 7330 states and 21705 transitions. [2022-02-15 11:34:07,378 INFO L78 Accepts]: Start accepts. Automaton has 7330 states and 21705 transitions. Word has length 134 [2022-02-15 11:34:07,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:07,378 INFO L470 AbstractCegarLoop]: Abstraction has 7330 states and 21705 transitions. [2022-02-15 11:34:07,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:07,378 INFO L276 IsEmpty]: Start isEmpty. Operand 7330 states and 21705 transitions. [2022-02-15 11:34:07,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:07,388 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:07,388 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] [2022-02-15 11:34:07,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-15 11:34:07,388 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:07,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:07,389 INFO L85 PathProgramCache]: Analyzing trace with hash -751073348, now seen corresponding path program 73 times [2022-02-15 11:34:07,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:07,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761868431] [2022-02-15 11:34:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:07,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:07,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:07,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:07,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761868431] [2022-02-15 11:34:07,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761868431] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:07,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:07,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:34:07,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160953718] [2022-02-15 11:34:07,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:07,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:34:07,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:07,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:34:07,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:07,542 INFO L87 Difference]: Start difference. First operand 7330 states and 21705 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:07,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:07,863 INFO L93 Difference]: Finished difference Result 7306 states and 21463 transitions. [2022-02-15 11:34:07,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 11:34:07,863 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:07,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:07,873 INFO L225 Difference]: With dead ends: 7306 [2022-02-15 11:34:07,873 INFO L226 Difference]: Without dead ends: 6562 [2022-02-15 11:34:07,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-02-15 11:34:07,874 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 261 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:07,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1045 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:07,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2022-02-15 11:34:07,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 6530. [2022-02-15 11:34:07,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6530 states, 6529 states have (on average 2.9349058048705774) internal successors, (19162), 6529 states have internal predecessors, (19162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:07,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6530 states to 6530 states and 19162 transitions. [2022-02-15 11:34:07,983 INFO L78 Accepts]: Start accepts. Automaton has 6530 states and 19162 transitions. Word has length 134 [2022-02-15 11:34:07,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:07,983 INFO L470 AbstractCegarLoop]: Abstraction has 6530 states and 19162 transitions. [2022-02-15 11:34:07,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:07,987 INFO L276 IsEmpty]: Start isEmpty. Operand 6530 states and 19162 transitions. [2022-02-15 11:34:07,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:07,996 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:07,997 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] [2022-02-15 11:34:07,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-15 11:34:07,997 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:07,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:07,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1802047252, now seen corresponding path program 74 times [2022-02-15 11:34:07,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:07,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106971190] [2022-02-15 11:34:07,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:07,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:08,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:08,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:08,213 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106971190] [2022-02-15 11:34:08,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106971190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:08,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:08,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:34:08,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027608831] [2022-02-15 11:34:08,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:08,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:34:08,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:08,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:34:08,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:34:08,214 INFO L87 Difference]: Start difference. First operand 6530 states and 19162 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:08,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:08,539 INFO L93 Difference]: Finished difference Result 7917 states and 23359 transitions. [2022-02-15 11:34:08,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 11:34:08,539 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:08,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:08,552 INFO L225 Difference]: With dead ends: 7917 [2022-02-15 11:34:08,552 INFO L226 Difference]: Without dead ends: 7223 [2022-02-15 11:34:08,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:34:08,552 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 344 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:08,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1237 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:08,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7223 states. [2022-02-15 11:34:08,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7223 to 6391. [2022-02-15 11:34:08,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6391 states, 6390 states have (on average 2.941001564945227) internal successors, (18793), 6390 states have internal predecessors, (18793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:08,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6391 states to 6391 states and 18793 transitions. [2022-02-15 11:34:08,645 INFO L78 Accepts]: Start accepts. Automaton has 6391 states and 18793 transitions. Word has length 134 [2022-02-15 11:34:08,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:08,645 INFO L470 AbstractCegarLoop]: Abstraction has 6391 states and 18793 transitions. [2022-02-15 11:34:08,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:08,645 INFO L276 IsEmpty]: Start isEmpty. Operand 6391 states and 18793 transitions. [2022-02-15 11:34:08,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:08,654 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:08,654 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] [2022-02-15 11:34:08,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-15 11:34:08,655 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:08,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:08,655 INFO L85 PathProgramCache]: Analyzing trace with hash 964872656, now seen corresponding path program 75 times [2022-02-15 11:34:08,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:08,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911724384] [2022-02-15 11:34:08,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:08,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:08,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:08,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:08,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911724384] [2022-02-15 11:34:08,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911724384] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:08,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:08,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:34:08,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67959904] [2022-02-15 11:34:08,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:08,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:34:08,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:08,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:34:08,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:34:08,856 INFO L87 Difference]: Start difference. First operand 6391 states and 18793 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:09,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:09,203 INFO L93 Difference]: Finished difference Result 6166 states and 18043 transitions. [2022-02-15 11:34:09,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:34:09,204 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:09,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:09,215 INFO L225 Difference]: With dead ends: 6166 [2022-02-15 11:34:09,215 INFO L226 Difference]: Without dead ends: 5251 [2022-02-15 11:34:09,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-02-15 11:34:09,216 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 167 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:09,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 1441 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:34:09,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2022-02-15 11:34:09,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 5251. [2022-02-15 11:34:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 2.9554285714285715) internal successors, (15516), 5250 states have internal predecessors, (15516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 15516 transitions. [2022-02-15 11:34:09,293 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 15516 transitions. Word has length 134 [2022-02-15 11:34:09,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:09,293 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 15516 transitions. [2022-02-15 11:34:09,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 15516 transitions. [2022-02-15 11:34:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:09,301 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:09,301 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] [2022-02-15 11:34:09,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-15 11:34:09,301 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:09,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:09,302 INFO L85 PathProgramCache]: Analyzing trace with hash 820531348, now seen corresponding path program 76 times [2022-02-15 11:34:09,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:09,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503081349] [2022-02-15 11:34:09,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:09,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:09,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:09,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:09,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503081349] [2022-02-15 11:34:09,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503081349] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:09,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:09,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:34:09,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413633000] [2022-02-15 11:34:09,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:09,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:34:09,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:09,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:34:09,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:09,435 INFO L87 Difference]: Start difference. First operand 5251 states and 15516 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:09,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:09,707 INFO L93 Difference]: Finished difference Result 5967 states and 17665 transitions. [2022-02-15 11:34:09,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 11:34:09,708 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:09,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:09,716 INFO L225 Difference]: With dead ends: 5967 [2022-02-15 11:34:09,717 INFO L226 Difference]: Without dead ends: 4975 [2022-02-15 11:34:09,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:34:09,717 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 422 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:09,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 1119 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:09,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4975 states. [2022-02-15 11:34:09,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4975 to 4931. [2022-02-15 11:34:09,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4931 states, 4930 states have (on average 2.9634888438133875) internal successors, (14610), 4930 states have internal predecessors, (14610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:09,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4931 states to 4931 states and 14610 transitions. [2022-02-15 11:34:09,787 INFO L78 Accepts]: Start accepts. Automaton has 4931 states and 14610 transitions. Word has length 134 [2022-02-15 11:34:09,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:09,787 INFO L470 AbstractCegarLoop]: Abstraction has 4931 states and 14610 transitions. [2022-02-15 11:34:09,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:09,787 INFO L276 IsEmpty]: Start isEmpty. Operand 4931 states and 14610 transitions. [2022-02-15 11:34:09,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:09,794 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:09,794 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] [2022-02-15 11:34:09,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-15 11:34:09,794 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:09,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:09,795 INFO L85 PathProgramCache]: Analyzing trace with hash 684318656, now seen corresponding path program 77 times [2022-02-15 11:34:09,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:09,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429602786] [2022-02-15 11:34:09,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:09,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:09,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:09,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:09,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:09,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429602786] [2022-02-15 11:34:09,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429602786] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:09,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:09,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 11:34:09,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587116212] [2022-02-15 11:34:09,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:09,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 11:34:09,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:09,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 11:34:09,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-02-15 11:34:09,896 INFO L87 Difference]: Start difference. First operand 4931 states and 14610 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:10,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:10,031 INFO L93 Difference]: Finished difference Result 5159 states and 15257 transitions. [2022-02-15 11:34:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 11:34:10,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:10,040 INFO L225 Difference]: With dead ends: 5159 [2022-02-15 11:34:10,041 INFO L226 Difference]: Without dead ends: 4883 [2022-02-15 11:34:10,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:34:10,041 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 86 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:10,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 581 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:10,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4883 states. [2022-02-15 11:34:10,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4883 to 4883. [2022-02-15 11:34:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4883 states, 4882 states have (on average 2.9492011470708728) internal successors, (14398), 4882 states have internal predecessors, (14398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:10,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4883 states to 4883 states and 14398 transitions. [2022-02-15 11:34:10,107 INFO L78 Accepts]: Start accepts. Automaton has 4883 states and 14398 transitions. Word has length 134 [2022-02-15 11:34:10,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:10,107 INFO L470 AbstractCegarLoop]: Abstraction has 4883 states and 14398 transitions. [2022-02-15 11:34:10,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:10,107 INFO L276 IsEmpty]: Start isEmpty. Operand 4883 states and 14398 transitions. [2022-02-15 11:34:10,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:10,113 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:10,113 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] [2022-02-15 11:34:10,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-15 11:34:10,114 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:10,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:10,114 INFO L85 PathProgramCache]: Analyzing trace with hash -599083418, now seen corresponding path program 78 times [2022-02-15 11:34:10,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:10,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712931733] [2022-02-15 11:34:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:10,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:10,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:10,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:10,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712931733] [2022-02-15 11:34:10,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712931733] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:10,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:10,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:34:10,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982378341] [2022-02-15 11:34:10,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:10,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:34:10,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:10,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:34:10,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:34:10,225 INFO L87 Difference]: Start difference. First operand 4883 states and 14398 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:10,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:10,346 INFO L93 Difference]: Finished difference Result 5435 states and 16044 transitions. [2022-02-15 11:34:10,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 11:34:10,346 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:10,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:10,354 INFO L225 Difference]: With dead ends: 5435 [2022-02-15 11:34:10,354 INFO L226 Difference]: Without dead ends: 4619 [2022-02-15 11:34:10,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:34:10,355 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 96 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:10,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 583 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:10,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4619 states. [2022-02-15 11:34:10,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4619 to 4619. [2022-02-15 11:34:10,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4619 states, 4618 states have (on average 2.956258120398441) internal successors, (13652), 4618 states have internal predecessors, (13652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:10,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4619 states to 4619 states and 13652 transitions. [2022-02-15 11:34:10,470 INFO L78 Accepts]: Start accepts. Automaton has 4619 states and 13652 transitions. Word has length 134 [2022-02-15 11:34:10,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:10,470 INFO L470 AbstractCegarLoop]: Abstraction has 4619 states and 13652 transitions. [2022-02-15 11:34:10,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:10,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4619 states and 13652 transitions. [2022-02-15 11:34:10,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:10,476 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:10,476 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] [2022-02-15 11:34:10,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-15 11:34:10,476 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:10,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:10,477 INFO L85 PathProgramCache]: Analyzing trace with hash -58097890, now seen corresponding path program 79 times [2022-02-15 11:34:10,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:10,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196239816] [2022-02-15 11:34:10,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:10,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:10,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:10,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196239816] [2022-02-15 11:34:10,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196239816] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:10,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:10,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:34:10,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741252197] [2022-02-15 11:34:10,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:10,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:34:10,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:10,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:34:10,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:34:10,641 INFO L87 Difference]: Start difference. First operand 4619 states and 13652 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:10,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:10,887 INFO L93 Difference]: Finished difference Result 4943 states and 14591 transitions. [2022-02-15 11:34:10,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:34:10,887 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:10,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:10,895 INFO L225 Difference]: With dead ends: 4943 [2022-02-15 11:34:10,896 INFO L226 Difference]: Without dead ends: 4715 [2022-02-15 11:34:10,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-02-15 11:34:10,896 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 183 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:10,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 1207 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:10,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4715 states. [2022-02-15 11:34:10,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4715 to 4643. [2022-02-15 11:34:10,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 4642 states have (on average 2.953468332615252) internal successors, (13710), 4642 states have internal predecessors, (13710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:10,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 13710 transitions. [2022-02-15 11:34:10,957 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 13710 transitions. Word has length 134 [2022-02-15 11:34:10,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:10,958 INFO L470 AbstractCegarLoop]: Abstraction has 4643 states and 13710 transitions. [2022-02-15 11:34:10,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 13710 transitions. [2022-02-15 11:34:10,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:10,964 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:10,964 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] [2022-02-15 11:34:10,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-15 11:34:10,964 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:10,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:10,965 INFO L85 PathProgramCache]: Analyzing trace with hash -187010670, now seen corresponding path program 80 times [2022-02-15 11:34:10,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:10,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070976190] [2022-02-15 11:34:10,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:10,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:11,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:11,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:11,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070976190] [2022-02-15 11:34:11,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070976190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:11,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:11,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:34:11,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330011882] [2022-02-15 11:34:11,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:11,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:34:11,131 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:11,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:34:11,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:11,131 INFO L87 Difference]: Start difference. First operand 4643 states and 13710 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:11,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:11,484 INFO L93 Difference]: Finished difference Result 6806 states and 20276 transitions. [2022-02-15 11:34:11,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 11:34:11,485 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:11,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:11,497 INFO L225 Difference]: With dead ends: 6806 [2022-02-15 11:34:11,497 INFO L226 Difference]: Without dead ends: 6242 [2022-02-15 11:34:11,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:34:11,497 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 232 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:11,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 1861 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:34:11,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2022-02-15 11:34:11,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 4331. [2022-02-15 11:34:11,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4331 states, 4330 states have (on average 2.953810623556582) internal successors, (12790), 4330 states have internal predecessors, (12790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:11,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4331 states to 4331 states and 12790 transitions. [2022-02-15 11:34:11,571 INFO L78 Accepts]: Start accepts. Automaton has 4331 states and 12790 transitions. Word has length 134 [2022-02-15 11:34:11,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:11,571 INFO L470 AbstractCegarLoop]: Abstraction has 4331 states and 12790 transitions. [2022-02-15 11:34:11,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:11,571 INFO L276 IsEmpty]: Start isEmpty. Operand 4331 states and 12790 transitions. [2022-02-15 11:34:11,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:11,577 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:11,577 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] [2022-02-15 11:34:11,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-15 11:34:11,578 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:11,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:11,578 INFO L85 PathProgramCache]: Analyzing trace with hash -886322154, now seen corresponding path program 81 times [2022-02-15 11:34:11,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:11,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031569507] [2022-02-15 11:34:11,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:11,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:11,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:11,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:11,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031569507] [2022-02-15 11:34:11,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031569507] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:11,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:11,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:34:11,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345804238] [2022-02-15 11:34:11,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:11,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:34:11,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:11,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:34:11,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:34:11,749 INFO L87 Difference]: Start difference. First operand 4331 states and 12790 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:11,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:11,921 INFO L93 Difference]: Finished difference Result 4583 states and 13507 transitions. [2022-02-15 11:34:11,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:34:11,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:11,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:11,930 INFO L225 Difference]: With dead ends: 4583 [2022-02-15 11:34:11,931 INFO L226 Difference]: Without dead ends: 4355 [2022-02-15 11:34:11,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:11,931 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 118 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:11,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 887 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:11,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4355 states. [2022-02-15 11:34:11,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4355 to 4355. [2022-02-15 11:34:11,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4355 states, 4354 states have (on average 2.950849793293523) internal successors, (12848), 4354 states have internal predecessors, (12848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:11,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 12848 transitions. [2022-02-15 11:34:11,997 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 12848 transitions. Word has length 134 [2022-02-15 11:34:11,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:11,997 INFO L470 AbstractCegarLoop]: Abstraction has 4355 states and 12848 transitions. [2022-02-15 11:34:11,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:11,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 12848 transitions. [2022-02-15 11:34:12,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:12,003 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:12,003 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] [2022-02-15 11:34:12,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-15 11:34:12,004 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:12,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:12,004 INFO L85 PathProgramCache]: Analyzing trace with hash -760800234, now seen corresponding path program 82 times [2022-02-15 11:34:12,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:12,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020575841] [2022-02-15 11:34:12,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:12,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:12,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:12,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:12,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020575841] [2022-02-15 11:34:12,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020575841] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:12,155 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:12,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:34:12,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406783697] [2022-02-15 11:34:12,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:12,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:34:12,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:12,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:34:12,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:12,156 INFO L87 Difference]: Start difference. First operand 4355 states and 12848 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:12,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:12,352 INFO L93 Difference]: Finished difference Result 4607 states and 13577 transitions. [2022-02-15 11:34:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:34:12,352 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:12,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:12,360 INFO L225 Difference]: With dead ends: 4607 [2022-02-15 11:34:12,360 INFO L226 Difference]: Without dead ends: 4275 [2022-02-15 11:34:12,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:34:12,361 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 122 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:12,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 980 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:12,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2022-02-15 11:34:12,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 4275. [2022-02-15 11:34:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 4274 states have (on average 2.9546092653252223) internal successors, (12628), 4274 states have internal predecessors, (12628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:12,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 12628 transitions. [2022-02-15 11:34:12,419 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 12628 transitions. Word has length 134 [2022-02-15 11:34:12,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:12,419 INFO L470 AbstractCegarLoop]: Abstraction has 4275 states and 12628 transitions. [2022-02-15 11:34:12,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:12,420 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 12628 transitions. [2022-02-15 11:34:12,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:12,425 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:12,426 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] [2022-02-15 11:34:12,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-02-15 11:34:12,426 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:12,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:12,426 INFO L85 PathProgramCache]: Analyzing trace with hash 775472158, now seen corresponding path program 83 times [2022-02-15 11:34:12,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:12,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500205635] [2022-02-15 11:34:12,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:12,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:12,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:12,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500205635] [2022-02-15 11:34:12,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500205635] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:12,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:12,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:34:12,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599845892] [2022-02-15 11:34:12,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:12,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:34:12,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:12,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:34:12,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:12,611 INFO L87 Difference]: Start difference. First operand 4275 states and 12628 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:12,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:12,786 INFO L93 Difference]: Finished difference Result 4503 states and 13287 transitions. [2022-02-15 11:34:12,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:34:12,786 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:12,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:12,794 INFO L225 Difference]: With dead ends: 4503 [2022-02-15 11:34:12,794 INFO L226 Difference]: Without dead ends: 4131 [2022-02-15 11:34:12,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:12,794 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 145 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:12,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 731 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:12,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2022-02-15 11:34:12,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 3855. [2022-02-15 11:34:12,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3855 states, 3854 states have (on average 2.9260508562532435) internal successors, (11277), 3854 states have internal predecessors, (11277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:12,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3855 states to 3855 states and 11277 transitions. [2022-02-15 11:34:12,849 INFO L78 Accepts]: Start accepts. Automaton has 3855 states and 11277 transitions. Word has length 134 [2022-02-15 11:34:12,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:12,850 INFO L470 AbstractCegarLoop]: Abstraction has 3855 states and 11277 transitions. [2022-02-15 11:34:12,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:12,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3855 states and 11277 transitions. [2022-02-15 11:34:12,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:12,855 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:12,856 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] [2022-02-15 11:34:12,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-02-15 11:34:12,856 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:12,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:12,856 INFO L85 PathProgramCache]: Analyzing trace with hash 900994078, now seen corresponding path program 84 times [2022-02-15 11:34:12,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:12,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957934342] [2022-02-15 11:34:12,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:12,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:13,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:13,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:13,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957934342] [2022-02-15 11:34:13,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957934342] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:13,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:13,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:34:13,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667286622] [2022-02-15 11:34:13,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:13,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:34:13,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:13,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:34:13,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:13,021 INFO L87 Difference]: Start difference. First operand 3855 states and 11277 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:13,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:13,217 INFO L93 Difference]: Finished difference Result 4107 states and 12018 transitions. [2022-02-15 11:34:13,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:34:13,218 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:13,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:13,225 INFO L225 Difference]: With dead ends: 4107 [2022-02-15 11:34:13,225 INFO L226 Difference]: Without dead ends: 3807 [2022-02-15 11:34:13,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:13,225 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 121 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:13,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 905 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:13,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2022-02-15 11:34:13,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3807. [2022-02-15 11:34:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3807 states, 3806 states have (on average 2.924067262217551) internal successors, (11129), 3806 states have internal predecessors, (11129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:13,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 11129 transitions. [2022-02-15 11:34:13,278 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 11129 transitions. Word has length 134 [2022-02-15 11:34:13,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:13,278 INFO L470 AbstractCegarLoop]: Abstraction has 3807 states and 11129 transitions. [2022-02-15 11:34:13,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:13,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 11129 transitions. [2022-02-15 11:34:13,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:13,284 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:13,284 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] [2022-02-15 11:34:13,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-02-15 11:34:13,285 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:13,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:13,285 INFO L85 PathProgramCache]: Analyzing trace with hash -52630960, now seen corresponding path program 85 times [2022-02-15 11:34:13,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:13,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389389690] [2022-02-15 11:34:13,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:13,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:13,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:13,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389389690] [2022-02-15 11:34:13,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389389690] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:13,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:13,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:34:13,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583686389] [2022-02-15 11:34:13,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:13,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:34:13,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:13,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:34:13,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:34:13,484 INFO L87 Difference]: Start difference. First operand 3807 states and 11129 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:13,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:13,697 INFO L93 Difference]: Finished difference Result 4596 states and 13374 transitions. [2022-02-15 11:34:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 11:34:13,698 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:13,707 INFO L225 Difference]: With dead ends: 4596 [2022-02-15 11:34:13,707 INFO L226 Difference]: Without dead ends: 4176 [2022-02-15 11:34:13,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-02-15 11:34:13,707 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 273 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:13,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 1034 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:13,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4176 states. [2022-02-15 11:34:13,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4176 to 3699. [2022-02-15 11:34:13,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3699 states, 3698 states have (on average 2.925094645754462) internal successors, (10817), 3698 states have internal predecessors, (10817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:13,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 10817 transitions. [2022-02-15 11:34:13,764 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 10817 transitions. Word has length 134 [2022-02-15 11:34:13,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:13,764 INFO L470 AbstractCegarLoop]: Abstraction has 3699 states and 10817 transitions. [2022-02-15 11:34:13,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:13,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 10817 transitions. [2022-02-15 11:34:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:13,770 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:13,770 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] [2022-02-15 11:34:13,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-02-15 11:34:13,770 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:13,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:13,770 INFO L85 PathProgramCache]: Analyzing trace with hash 661333576, now seen corresponding path program 86 times [2022-02-15 11:34:13,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:13,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603027491] [2022-02-15 11:34:13,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:13,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:13,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:13,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603027491] [2022-02-15 11:34:13,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603027491] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:13,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:13,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:34:13,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047746336] [2022-02-15 11:34:13,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:13,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:34:13,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:13,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:34:13,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:13,915 INFO L87 Difference]: Start difference. First operand 3699 states and 10817 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:14,027 INFO L93 Difference]: Finished difference Result 3423 states and 9968 transitions. [2022-02-15 11:34:14,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:34:14,027 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:14,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:14,032 INFO L225 Difference]: With dead ends: 3423 [2022-02-15 11:34:14,032 INFO L226 Difference]: Without dead ends: 2985 [2022-02-15 11:34:14,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:14,032 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 128 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:14,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 600 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:14,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2022-02-15 11:34:14,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 2985. [2022-02-15 11:34:14,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2985 states, 2984 states have (on average 2.9490616621983916) internal successors, (8800), 2984 states have internal predecessors, (8800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:14,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 8800 transitions. [2022-02-15 11:34:14,076 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 8800 transitions. Word has length 134 [2022-02-15 11:34:14,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:14,076 INFO L470 AbstractCegarLoop]: Abstraction has 2985 states and 8800 transitions. [2022-02-15 11:34:14,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:14,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 8800 transitions. [2022-02-15 11:34:14,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:14,081 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:14,081 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] [2022-02-15 11:34:14,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-02-15 11:34:14,081 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:14,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:14,081 INFO L85 PathProgramCache]: Analyzing trace with hash 262358674, now seen corresponding path program 87 times [2022-02-15 11:34:14,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:14,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232195599] [2022-02-15 11:34:14,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:14,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:14,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:14,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232195599] [2022-02-15 11:34:14,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232195599] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:14,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:14,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 11:34:14,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662393776] [2022-02-15 11:34:14,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:14,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 11:34:14,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:14,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 11:34:14,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:34:14,295 INFO L87 Difference]: Start difference. First operand 2985 states and 8800 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:14,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:14,463 INFO L93 Difference]: Finished difference Result 3285 states and 9657 transitions. [2022-02-15 11:34:14,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:34:14,463 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:14,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:14,467 INFO L225 Difference]: With dead ends: 3285 [2022-02-15 11:34:14,467 INFO L226 Difference]: Without dead ends: 2889 [2022-02-15 11:34:14,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:34:14,469 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 130 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:14,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1101 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:14,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2022-02-15 11:34:14,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 2817. [2022-02-15 11:34:14,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2817 states, 2816 states have (on average 2.965553977272727) internal successors, (8351), 2816 states have internal predecessors, (8351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:14,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2817 states to 2817 states and 8351 transitions. [2022-02-15 11:34:14,499 INFO L78 Accepts]: Start accepts. Automaton has 2817 states and 8351 transitions. Word has length 134 [2022-02-15 11:34:14,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:14,499 INFO L470 AbstractCegarLoop]: Abstraction has 2817 states and 8351 transitions. [2022-02-15 11:34:14,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:14,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2817 states and 8351 transitions. [2022-02-15 11:34:14,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:14,504 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:14,505 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] [2022-02-15 11:34:14,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-02-15 11:34:14,505 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:14,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:14,505 INFO L85 PathProgramCache]: Analyzing trace with hash 695589492, now seen corresponding path program 88 times [2022-02-15 11:34:14,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:14,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651031924] [2022-02-15 11:34:14,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:14,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:14,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:14,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:14,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651031924] [2022-02-15 11:34:14,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651031924] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:14,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:14,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:34:14,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798509142] [2022-02-15 11:34:14,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:14,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:34:14,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:14,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:34:14,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:34:14,672 INFO L87 Difference]: Start difference. First operand 2817 states and 8351 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:14,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:14,919 INFO L93 Difference]: Finished difference Result 3669 states and 10898 transitions. [2022-02-15 11:34:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 11:34:14,920 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:14,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:14,924 INFO L225 Difference]: With dead ends: 3669 [2022-02-15 11:34:14,924 INFO L226 Difference]: Without dead ends: 2889 [2022-02-15 11:34:14,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:34:14,925 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 322 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:14,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 1404 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:14,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2022-02-15 11:34:14,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 2865. [2022-02-15 11:34:14,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 2.9591480446927374) internal successors, (8475), 2864 states have internal predecessors, (8475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:14,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 8475 transitions. [2022-02-15 11:34:14,957 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 8475 transitions. Word has length 134 [2022-02-15 11:34:14,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:14,957 INFO L470 AbstractCegarLoop]: Abstraction has 2865 states and 8475 transitions. [2022-02-15 11:34:14,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:14,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 8475 transitions. [2022-02-15 11:34:14,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:14,960 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:14,961 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] [2022-02-15 11:34:14,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-02-15 11:34:14,961 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:14,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:14,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1301648780, now seen corresponding path program 89 times [2022-02-15 11:34:14,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:14,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462285947] [2022-02-15 11:34:14,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:14,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:15,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:15,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:15,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462285947] [2022-02-15 11:34:15,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462285947] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:15,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:15,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:34:15,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721860100] [2022-02-15 11:34:15,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:15,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:34:15,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:15,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:34:15,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:15,119 INFO L87 Difference]: Start difference. First operand 2865 states and 8475 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:15,309 INFO L93 Difference]: Finished difference Result 3849 states and 11453 transitions. [2022-02-15 11:34:15,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 11:34:15,310 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:15,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:15,323 INFO L225 Difference]: With dead ends: 3849 [2022-02-15 11:34:15,324 INFO L226 Difference]: Without dead ends: 3177 [2022-02-15 11:34:15,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-02-15 11:34:15,324 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 175 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:15,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1059 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:15,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2022-02-15 11:34:15,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 2517. [2022-02-15 11:34:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2516 states have (on average 2.911764705882353) internal successors, (7326), 2516 states have internal predecessors, (7326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:15,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 7326 transitions. [2022-02-15 11:34:15,364 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 7326 transitions. Word has length 134 [2022-02-15 11:34:15,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:15,364 INFO L470 AbstractCegarLoop]: Abstraction has 2517 states and 7326 transitions. [2022-02-15 11:34:15,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:15,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 7326 transitions. [2022-02-15 11:34:15,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:15,368 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:15,368 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] [2022-02-15 11:34:15,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-02-15 11:34:15,368 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:15,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:15,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1073240366, now seen corresponding path program 90 times [2022-02-15 11:34:15,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:15,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001061901] [2022-02-15 11:34:15,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:15,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:15,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:15,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:15,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001061901] [2022-02-15 11:34:15,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001061901] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:15,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:15,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:34:15,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053482848] [2022-02-15 11:34:15,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:15,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:34:15,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:15,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:34:15,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:34:15,524 INFO L87 Difference]: Start difference. First operand 2517 states and 7326 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:15,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:15,663 INFO L93 Difference]: Finished difference Result 2793 states and 8105 transitions. [2022-02-15 11:34:15,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 11:34:15,663 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:15,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:15,667 INFO L225 Difference]: With dead ends: 2793 [2022-02-15 11:34:15,667 INFO L226 Difference]: Without dead ends: 2541 [2022-02-15 11:34:15,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:34:15,668 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 333 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:15,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 1030 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:15,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541 states. [2022-02-15 11:34:15,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2541 to 2529. [2022-02-15 11:34:15,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2528 states have (on average 2.914161392405063) internal successors, (7367), 2528 states have internal predecessors, (7367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:15,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 7367 transitions. [2022-02-15 11:34:15,698 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 7367 transitions. Word has length 134 [2022-02-15 11:34:15,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:15,698 INFO L470 AbstractCegarLoop]: Abstraction has 2529 states and 7367 transitions. [2022-02-15 11:34:15,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:15,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 7367 transitions. [2022-02-15 11:34:15,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:15,701 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:15,701 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] [2022-02-15 11:34:15,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-02-15 11:34:15,701 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:15,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:15,702 INFO L85 PathProgramCache]: Analyzing trace with hash -604174652, now seen corresponding path program 91 times [2022-02-15 11:34:15,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:15,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013224521] [2022-02-15 11:34:15,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:15,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:15,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:15,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:15,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013224521] [2022-02-15 11:34:15,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013224521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:15,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:15,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 11:34:15,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544730873] [2022-02-15 11:34:15,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:15,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 11:34:15,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:15,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 11:34:15,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:15,825 INFO L87 Difference]: Start difference. First operand 2529 states and 7367 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:15,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:15,938 INFO L93 Difference]: Finished difference Result 2801 states and 8103 transitions. [2022-02-15 11:34:15,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:34:15,938 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:15,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:15,942 INFO L225 Difference]: With dead ends: 2801 [2022-02-15 11:34:15,942 INFO L226 Difference]: Without dead ends: 2405 [2022-02-15 11:34:15,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:15,943 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 249 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:15,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 628 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:15,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-02-15 11:34:15,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2405. [2022-02-15 11:34:15,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2404 states have (on average 2.915973377703827) internal successors, (7010), 2404 states have internal predecessors, (7010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:15,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 7010 transitions. [2022-02-15 11:34:15,968 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 7010 transitions. Word has length 134 [2022-02-15 11:34:15,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:15,968 INFO L470 AbstractCegarLoop]: Abstraction has 2405 states and 7010 transitions. [2022-02-15 11:34:15,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:15,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 7010 transitions. [2022-02-15 11:34:15,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:15,970 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:15,970 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] [2022-02-15 11:34:15,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-02-15 11:34:15,971 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:15,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:15,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1687039256, now seen corresponding path program 92 times [2022-02-15 11:34:15,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:15,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569444803] [2022-02-15 11:34:15,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:15,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:16,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:16,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:16,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569444803] [2022-02-15 11:34:16,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569444803] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:16,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:16,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:34:16,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631439694] [2022-02-15 11:34:16,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:16,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:34:16,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:16,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:34:16,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:34:16,103 INFO L87 Difference]: Start difference. First operand 2405 states and 7010 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:16,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:16,251 INFO L93 Difference]: Finished difference Result 3743 states and 11052 transitions. [2022-02-15 11:34:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 11:34:16,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:16,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:16,257 INFO L225 Difference]: With dead ends: 3743 [2022-02-15 11:34:16,257 INFO L226 Difference]: Without dead ends: 3503 [2022-02-15 11:34:16,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:34:16,257 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 82 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:16,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 610 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:16,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3503 states. [2022-02-15 11:34:16,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3503 to 2441. [2022-02-15 11:34:16,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2440 states have (on average 2.9184426229508196) internal successors, (7121), 2440 states have internal predecessors, (7121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:16,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 7121 transitions. [2022-02-15 11:34:16,290 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 7121 transitions. Word has length 134 [2022-02-15 11:34:16,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:16,290 INFO L470 AbstractCegarLoop]: Abstraction has 2441 states and 7121 transitions. [2022-02-15 11:34:16,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:16,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 7121 transitions. [2022-02-15 11:34:16,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:16,293 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:16,293 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] [2022-02-15 11:34:16,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-02-15 11:34:16,293 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:16,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:16,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1537266998, now seen corresponding path program 93 times [2022-02-15 11:34:16,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:16,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738837435] [2022-02-15 11:34:16,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:16,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:16,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:16,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:16,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738837435] [2022-02-15 11:34:16,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738837435] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:16,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:16,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 11:34:16,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252673832] [2022-02-15 11:34:16,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:16,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 11:34:16,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:16,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 11:34:16,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-15 11:34:16,380 INFO L87 Difference]: Start difference. First operand 2441 states and 7121 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:16,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:16,497 INFO L93 Difference]: Finished difference Result 4160 states and 12278 transitions. [2022-02-15 11:34:16,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 11:34:16,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:16,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:16,505 INFO L225 Difference]: With dead ends: 4160 [2022-02-15 11:34:16,505 INFO L226 Difference]: Without dead ends: 3956 [2022-02-15 11:34:16,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:34:16,505 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 206 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:16,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 453 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:16,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2022-02-15 11:34:16,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 2465. [2022-02-15 11:34:16,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2464 states have (on average 2.918425324675325) internal successors, (7191), 2464 states have internal predecessors, (7191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:16,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 7191 transitions. [2022-02-15 11:34:16,543 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 7191 transitions. Word has length 134 [2022-02-15 11:34:16,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:16,543 INFO L470 AbstractCegarLoop]: Abstraction has 2465 states and 7191 transitions. [2022-02-15 11:34:16,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:16,543 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 7191 transitions. [2022-02-15 11:34:16,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:16,546 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:16,546 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] [2022-02-15 11:34:16,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-02-15 11:34:16,546 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:16,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:16,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1827044804, now seen corresponding path program 94 times [2022-02-15 11:34:16,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:16,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934380006] [2022-02-15 11:34:16,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:16,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:16,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:16,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:16,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934380006] [2022-02-15 11:34:16,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934380006] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:16,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:16,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:34:16,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921774965] [2022-02-15 11:34:16,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:16,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:34:16,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:16,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:34:16,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:34:16,668 INFO L87 Difference]: Start difference. First operand 2465 states and 7191 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:16,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:16,842 INFO L93 Difference]: Finished difference Result 3299 states and 9667 transitions. [2022-02-15 11:34:16,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:34:16,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:16,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:16,854 INFO L225 Difference]: With dead ends: 3299 [2022-02-15 11:34:16,854 INFO L226 Difference]: Without dead ends: 2639 [2022-02-15 11:34:16,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:16,854 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 161 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:16,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 745 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:16,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2022-02-15 11:34:16,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 1973. [2022-02-15 11:34:16,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1972 states have (on average 2.911764705882353) internal successors, (5742), 1972 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:16,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 5742 transitions. [2022-02-15 11:34:16,890 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 5742 transitions. Word has length 134 [2022-02-15 11:34:16,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:16,891 INFO L470 AbstractCegarLoop]: Abstraction has 1973 states and 5742 transitions. [2022-02-15 11:34:16,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:16,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 5742 transitions. [2022-02-15 11:34:16,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:16,894 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:16,894 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] [2022-02-15 11:34:16,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-02-15 11:34:16,895 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:16,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:16,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1098654282, now seen corresponding path program 95 times [2022-02-15 11:34:16,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:16,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663270417] [2022-02-15 11:34:16,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:16,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:17,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:17,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:17,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663270417] [2022-02-15 11:34:17,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663270417] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:17,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:17,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:34:17,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946425836] [2022-02-15 11:34:17,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:17,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:34:17,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:17,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:34:17,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:34:17,053 INFO L87 Difference]: Start difference. First operand 1973 states and 5742 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:17,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:17,240 INFO L93 Difference]: Finished difference Result 2189 states and 6336 transitions. [2022-02-15 11:34:17,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:34:17,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:17,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:17,244 INFO L225 Difference]: With dead ends: 2189 [2022-02-15 11:34:17,244 INFO L226 Difference]: Without dead ends: 1877 [2022-02-15 11:34:17,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:17,245 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 177 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:17,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 633 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:17,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2022-02-15 11:34:17,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877. [2022-02-15 11:34:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1876 states have (on average 2.894456289978678) internal successors, (5430), 1876 states have internal predecessors, (5430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:17,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 5430 transitions. [2022-02-15 11:34:17,294 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 5430 transitions. Word has length 134 [2022-02-15 11:34:17,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:17,294 INFO L470 AbstractCegarLoop]: Abstraction has 1877 states and 5430 transitions. [2022-02-15 11:34:17,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:17,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 5430 transitions. [2022-02-15 11:34:17,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:17,298 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:17,298 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] [2022-02-15 11:34:17,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-02-15 11:34:17,298 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:17,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:17,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1296546248, now seen corresponding path program 96 times [2022-02-15 11:34:17,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:17,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243242769] [2022-02-15 11:34:17,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:17,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:17,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:17,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:17,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243242769] [2022-02-15 11:34:17,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243242769] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:17,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:17,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:34:17,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889784883] [2022-02-15 11:34:17,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:17,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:34:17,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:17,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:34:17,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:17,450 INFO L87 Difference]: Start difference. First operand 1877 states and 5430 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:17,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:17,587 INFO L93 Difference]: Finished difference Result 2561 states and 7491 transitions. [2022-02-15 11:34:17,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:34:17,587 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:17,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:17,592 INFO L225 Difference]: With dead ends: 2561 [2022-02-15 11:34:17,593 INFO L226 Difference]: Without dead ends: 2357 [2022-02-15 11:34:17,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:34:17,593 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 155 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:17,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 819 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:17,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2022-02-15 11:34:17,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 1961. [2022-02-15 11:34:17,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1960 states have (on average 2.8862244897959184) internal successors, (5657), 1960 states have internal predecessors, (5657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:17,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 5657 transitions. [2022-02-15 11:34:17,630 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 5657 transitions. Word has length 134 [2022-02-15 11:34:17,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:17,630 INFO L470 AbstractCegarLoop]: Abstraction has 1961 states and 5657 transitions. [2022-02-15 11:34:17,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:17,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 5657 transitions. [2022-02-15 11:34:17,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:17,634 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:17,634 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] [2022-02-15 11:34:17,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-02-15 11:34:17,634 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:17,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:17,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1001182776, now seen corresponding path program 97 times [2022-02-15 11:34:17,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:17,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799728461] [2022-02-15 11:34:17,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:17,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:17,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:17,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:17,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799728461] [2022-02-15 11:34:17,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799728461] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:17,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:17,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:34:17,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798127729] [2022-02-15 11:34:17,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:17,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:34:17,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:17,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:34:17,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:17,819 INFO L87 Difference]: Start difference. First operand 1961 states and 5657 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:18,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:18,014 INFO L93 Difference]: Finished difference Result 2093 states and 6012 transitions. [2022-02-15 11:34:18,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 11:34:18,015 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:18,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:18,018 INFO L225 Difference]: With dead ends: 2093 [2022-02-15 11:34:18,018 INFO L226 Difference]: Without dead ends: 1937 [2022-02-15 11:34:18,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:34:18,018 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 102 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:18,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1208 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:34:18,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2022-02-15 11:34:18,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1937. [2022-02-15 11:34:18,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1936 states have (on average 2.883780991735537) internal successors, (5583), 1936 states have internal predecessors, (5583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:18,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 5583 transitions. [2022-02-15 11:34:18,041 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 5583 transitions. Word has length 134 [2022-02-15 11:34:18,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:18,041 INFO L470 AbstractCegarLoop]: Abstraction has 1937 states and 5583 transitions. [2022-02-15 11:34:18,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:18,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 5583 transitions. [2022-02-15 11:34:18,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:18,044 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:18,044 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] [2022-02-15 11:34:18,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-02-15 11:34:18,045 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:18,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:18,045 INFO L85 PathProgramCache]: Analyzing trace with hash 546157752, now seen corresponding path program 98 times [2022-02-15 11:34:18,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:18,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506598215] [2022-02-15 11:34:18,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:18,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:18,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:18,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:18,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506598215] [2022-02-15 11:34:18,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506598215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:18,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:18,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:34:18,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551657757] [2022-02-15 11:34:18,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:18,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:34:18,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:18,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:34:18,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:34:18,210 INFO L87 Difference]: Start difference. First operand 1937 states and 5583 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:18,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:18,347 INFO L93 Difference]: Finished difference Result 2141 states and 6116 transitions. [2022-02-15 11:34:18,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 11:34:18,348 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:18,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:18,351 INFO L225 Difference]: With dead ends: 2141 [2022-02-15 11:34:18,351 INFO L226 Difference]: Without dead ends: 1961 [2022-02-15 11:34:18,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:34:18,352 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 332 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:18,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 783 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2022-02-15 11:34:18,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1961. [2022-02-15 11:34:18,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1960 states have (on average 2.8698979591836733) internal successors, (5625), 1960 states have internal predecessors, (5625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:18,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 5625 transitions. [2022-02-15 11:34:18,375 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 5625 transitions. Word has length 134 [2022-02-15 11:34:18,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:18,375 INFO L470 AbstractCegarLoop]: Abstraction has 1961 states and 5625 transitions. [2022-02-15 11:34:18,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 5625 transitions. [2022-02-15 11:34:18,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:18,378 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:18,378 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] [2022-02-15 11:34:18,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-02-15 11:34:18,378 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:18,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:18,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1716825300, now seen corresponding path program 99 times [2022-02-15 11:34:18,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:18,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876577966] [2022-02-15 11:34:18,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:18,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:18,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:18,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:18,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876577966] [2022-02-15 11:34:18,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876577966] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:18,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:18,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:34:18,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27558716] [2022-02-15 11:34:18,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:18,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:34:18,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:18,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:34:18,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:34:18,550 INFO L87 Difference]: Start difference. First operand 1961 states and 5625 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:18,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:18,787 INFO L93 Difference]: Finished difference Result 2357 states and 6786 transitions. [2022-02-15 11:34:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:34:18,787 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:18,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:18,791 INFO L225 Difference]: With dead ends: 2357 [2022-02-15 11:34:18,791 INFO L226 Difference]: Without dead ends: 2057 [2022-02-15 11:34:18,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:34:18,791 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 199 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:18,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 975 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:18,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2022-02-15 11:34:18,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 1757. [2022-02-15 11:34:18,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1756 states have (on average 2.85876993166287) internal successors, (5020), 1756 states have internal predecessors, (5020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:18,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 5020 transitions. [2022-02-15 11:34:18,811 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 5020 transitions. Word has length 134 [2022-02-15 11:34:18,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:18,811 INFO L470 AbstractCegarLoop]: Abstraction has 1757 states and 5020 transitions. [2022-02-15 11:34:18,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:18,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 5020 transitions. [2022-02-15 11:34:18,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:18,814 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:18,814 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] [2022-02-15 11:34:18,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-02-15 11:34:18,814 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:18,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash -22731434, now seen corresponding path program 100 times [2022-02-15 11:34:18,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:18,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453377746] [2022-02-15 11:34:18,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:18,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:18,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:18,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:18,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453377746] [2022-02-15 11:34:18,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453377746] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:18,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:18,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 11:34:18,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985851311] [2022-02-15 11:34:18,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:18,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 11:34:18,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:18,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 11:34:18,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:34:18,988 INFO L87 Difference]: Start difference. First operand 1757 states and 5020 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:19,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:19,111 INFO L93 Difference]: Finished difference Result 1661 states and 4692 transitions. [2022-02-15 11:34:19,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 11:34:19,111 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:19,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:19,114 INFO L225 Difference]: With dead ends: 1661 [2022-02-15 11:34:19,114 INFO L226 Difference]: Without dead ends: 1449 [2022-02-15 11:34:19,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-02-15 11:34:19,115 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 97 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:19,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 880 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:19,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2022-02-15 11:34:19,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1425. [2022-02-15 11:34:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1424 states have (on average 2.8588483146067416) internal successors, (4071), 1424 states have internal predecessors, (4071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:19,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 4071 transitions. [2022-02-15 11:34:19,130 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 4071 transitions. Word has length 134 [2022-02-15 11:34:19,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:19,130 INFO L470 AbstractCegarLoop]: Abstraction has 1425 states and 4071 transitions. [2022-02-15 11:34:19,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 4071 transitions. [2022-02-15 11:34:19,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 11:34:19,132 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:19,132 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] [2022-02-15 11:34:19,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-02-15 11:34:19,132 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:34:19,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:19,133 INFO L85 PathProgramCache]: Analyzing trace with hash 640786386, now seen corresponding path program 101 times [2022-02-15 11:34:19,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:19,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841754054] [2022-02-15 11:34:19,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:19,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:19,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:19,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841754054] [2022-02-15 11:34:19,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841754054] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:19,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:19,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 11:34:19,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157937174] [2022-02-15 11:34:19,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:19,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 11:34:19,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:19,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 11:34:19,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-02-15 11:34:19,233 INFO L87 Difference]: Start difference. First operand 1425 states and 4071 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:19,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:19,321 INFO L93 Difference]: Finished difference Result 882 states and 2440 transitions. [2022-02-15 11:34:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 11:34:19,321 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 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 134 [2022-02-15 11:34:19,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:19,321 INFO L225 Difference]: With dead ends: 882 [2022-02-15 11:34:19,321 INFO L226 Difference]: Without dead ends: 0 [2022-02-15 11:34:19,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-15 11:34:19,322 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 130 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:19,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 464 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:34:19,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-15 11:34:19,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-15 11:34:19,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:19,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-15 11:34:19,322 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2022-02-15 11:34:19,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:19,322 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-15 11:34:19,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:19,322 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-15 11:34:19,322 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-15 11:34:19,324 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-15 11:34:19,325 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-15 11:34:19,325 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-15 11:34:19,325 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-15 11:34:19,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-02-15 11:34:19,327 INFO L732 BasicCegarLoop]: Path program histogram: [101] [2022-02-15 11:34:19,328 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-15 11:34:19,328 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 11:34:19,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 11:34:19 BasicIcfg [2022-02-15 11:34:19,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 11:34:19,330 INFO L158 Benchmark]: Toolchain (without parser) took 98376.24ms. Allocated memory was 192.9MB in the beginning and 7.8GB in the end (delta: 7.7GB). Free memory was 142.5MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2022-02-15 11:34:19,330 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 192.9MB. Free memory was 158.8MB in the beginning and 158.7MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 11:34:19,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.33ms. Allocated memory is still 192.9MB. Free memory was 142.3MB in the beginning and 167.4MB in the end (delta: -25.1MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-02-15 11:34:19,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.90ms. Allocated memory is still 192.9MB. Free memory was 167.4MB in the beginning and 164.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-15 11:34:19,330 INFO L158 Benchmark]: Boogie Preprocessor took 27.64ms. Allocated memory is still 192.9MB. Free memory was 164.8MB in the beginning and 163.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-15 11:34:19,330 INFO L158 Benchmark]: RCFGBuilder took 581.86ms. Allocated memory is still 192.9MB. Free memory was 163.2MB in the beginning and 134.3MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-02-15 11:34:19,330 INFO L158 Benchmark]: TraceAbstraction took 97469.16ms. Allocated memory was 192.9MB in the beginning and 7.8GB in the end (delta: 7.7GB). Free memory was 133.8MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2022-02-15 11:34:19,330 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 192.9MB. Free memory was 158.8MB in the beginning and 158.7MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 243.33ms. Allocated memory is still 192.9MB. Free memory was 142.3MB in the beginning and 167.4MB in the end (delta: -25.1MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.90ms. Allocated memory is still 192.9MB. Free memory was 167.4MB in the beginning and 164.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.64ms. Allocated memory is still 192.9MB. Free memory was 164.8MB in the beginning and 163.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 581.86ms. Allocated memory is still 192.9MB. Free memory was 163.2MB in the beginning and 134.3MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 97469.16ms. Allocated memory was 192.9MB in the beginning and 7.8GB in the end (delta: 7.7GB). Free memory was 133.8MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 196]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 199 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 97.3s, OverallIterations: 101, TraceHistogramMax: 1, PathProgramHistogramMax: 101, EmptinessCheckTime: 3.1s, AutomataDifference: 41.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26978 SdHoareTripleChecker+Valid, 22.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26978 mSDsluCounter, 102943 SdHoareTripleChecker+Invalid, 18.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102306 mSDsCounter, 3437 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51660 IncrementalHoareTripleChecker+Invalid, 55097 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3437 mSolverCounterUnsat, 17104 mSDtfsCounter, 51660 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1761 GetRequests, 451 SyntacticMatches, 42 SemanticMatches, 1268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3101 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25962occurred in iteration=37, InterpolantAutomatonStates: 1236, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 34.2s AutomataMinimizationTime, 101 MinimizatonAttempts, 263570 StatesRemovedByMinimization, 82 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 13534 NumberOfCodeBlocks, 13534 NumberOfCodeBlocksAsserted, 101 NumberOfCheckSat, 13433 ConstructedInterpolants, 0 QuantifiedInterpolants, 59108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 101 InterpolantComputations, 101 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-15 11:34:19,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...