/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-?-bc289cb [2022-01-28 13:01:07,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 13:01:07,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 13:01:07,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-28 13:01:07,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-28 13:01:07,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-28 13:01:07,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-28 13:01:07,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-28 13:01:07,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-28 13:01:07,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-28 13:01:07,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-28 13:01:07,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-28 13:01:07,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 13:01:07,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 13:01:07,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 13:01:07,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 13:01:07,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 13:01:07,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 13:01:07,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 13:01:07,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 13:01:07,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 13:01:07,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 13:01:07,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 13:01:07,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 13:01:07,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-28 13:01:07,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-28 13:01:07,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-28 13:01:07,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-28 13:01:07,826 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 [2022-01-28 13:01:07,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 13:01:07,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 13:01:07,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 13:01:07,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 13:01:07,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 13:01:07,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 13:01:07,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 13:01:07,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 13:01:07,844 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 13:01:07,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 13:01:07,844 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 13:01:07,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 13:01:07,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 13:01:07,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 13:01:07,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 13:01:07,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 13:01:07,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 13:01:07,845 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 13:01:07,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 13:01:07,845 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 13:01:07,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 13:01:07,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 13:01:07,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 13:01:07,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 13:01:07,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 13:01:07,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 13:01:07,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 13:01:07,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 13:01:07,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 13:01:07,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 13:01:07,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 13:01:07,847 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 13:01:07,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 13:01:07,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 13:01:08,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 13:01:08,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 13:01:08,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 13:01:08,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-28 13:01:08,065 INFO L275 PluginConnector]: CDTParser initialized [2022-01-28 13:01:08,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-01-28 13:01:08,139 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73021370a/90877b2f4ab241ccb57f0071bfcd127c/FLAG6e8298e89 [2022-01-28 13:01:08,478 INFO L306 CDTParser]: Found 1 translation units. [2022-01-28 13:01:08,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-01-28 13:01:08,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73021370a/90877b2f4ab241ccb57f0071bfcd127c/FLAG6e8298e89 [2022-01-28 13:01:08,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73021370a/90877b2f4ab241ccb57f0071bfcd127c [2022-01-28 13:01:08,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 13:01:08,897 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-28 13:01:08,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-28 13:01:08,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-28 13:01:08,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-28 13:01:08,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:01:08" (1/1) ... [2022-01-28 13:01:08,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@361883e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:08, skipping insertion in model container [2022-01-28 13:01:08,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:01:08" (1/1) ... [2022-01-28 13:01:08,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-28 13:01:08,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-28 13:01:09,121 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] [2022-01-28 13:01:09,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 13:01:09,131 INFO L203 MainTranslator]: Completed pre-run [2022-01-28 13:01:09,156 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] [2022-01-28 13:01:09,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 13:01:09,169 INFO L208 MainTranslator]: Completed translation [2022-01-28 13:01:09,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09 WrapperNode [2022-01-28 13:01:09,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-28 13:01:09,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 13:01:09,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 13:01:09,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 13:01:09,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09" (1/1) ... [2022-01-28 13:01:09,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09" (1/1) ... [2022-01-28 13:01:09,213 INFO L137 Inliner]: procedures = 22, calls = 110, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 279 [2022-01-28 13:01:09,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 13:01:09,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 13:01:09,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 13:01:09,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 13:01:09,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09" (1/1) ... [2022-01-28 13:01:09,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09" (1/1) ... [2022-01-28 13:01:09,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09" (1/1) ... [2022-01-28 13:01:09,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09" (1/1) ... [2022-01-28 13:01:09,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09" (1/1) ... [2022-01-28 13:01:09,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09" (1/1) ... [2022-01-28 13:01:09,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09" (1/1) ... [2022-01-28 13:01:09,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 13:01:09,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 13:01:09,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 13:01:09,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 13:01:09,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09" (1/1) ... [2022-01-28 13:01:09,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 13:01:09,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:01:09,284 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) [2022-01-28 13:01:09,291 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 [2022-01-28 13:01:09,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-28 13:01:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-28 13:01:09,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-28 13:01:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-28 13:01:09,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-28 13:01:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-28 13:01:09,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-28 13:01:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-28 13:01:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-28 13:01:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-28 13:01:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-28 13:01:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-28 13:01:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 13:01:09,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 13:01:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-28 13:01:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-28 13:01:09,318 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 13:01:09,388 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 13:01:09,390 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 13:01:09,736 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 13:01:09,863 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 13:01:09,863 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-28 13:01:09,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:01:09 BoogieIcfgContainer [2022-01-28 13:01:09,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 13:01:09,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 13:01:09,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 13:01:09,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 13:01:09,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:01:08" (1/3) ... [2022-01-28 13:01:09,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d47f769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:01:09, skipping insertion in model container [2022-01-28 13:01:09,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:01:09" (2/3) ... [2022-01-28 13:01:09,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d47f769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:01:09, skipping insertion in model container [2022-01-28 13:01:09,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:01:09" (3/3) ... [2022-01-28 13:01:09,877 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2022-01-28 13:01:09,882 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 13:01:09,883 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 13:01:09,883 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 13:01:09,883 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 13:01:09,928 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,929 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,929 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,929 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,929 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,929 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,931 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,931 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,931 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,931 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,931 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,932 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,932 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,932 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,932 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,932 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,933 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,933 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,933 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,934 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,934 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,934 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,934 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,934 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,935 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,937 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,937 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,937 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,937 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,937 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,937 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,938 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,938 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,938 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,938 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,938 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,938 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,938 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,939 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,939 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,939 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,939 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,939 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,940 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,940 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,940 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,940 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,941 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,941 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,941 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,941 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,942 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,942 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,942 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,942 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,943 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,943 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,943 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,943 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,943 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,943 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,945 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,945 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,945 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,945 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,945 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,945 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,950 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,951 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,951 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,952 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,952 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,953 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,953 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,954 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,955 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,955 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,957 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,962 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,962 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,962 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,963 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,963 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,963 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,964 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,964 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,965 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,965 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:01:09,968 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-28 13:01:10,018 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 13:01:10,023 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, 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 [2022-01-28 13:01:10,023 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-28 13:01:10,034 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 160 places, 152 transitions, 328 flow [2022-01-28 13:01:10,609 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) [2022-01-28 13:01:10,638 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) [2022-01-28 13:01:10,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:10,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:10,816 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] [2022-01-28 13:01:10,817 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:10,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:10,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1965078490, now seen corresponding path program 1 times [2022-01-28 13:01:10,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:10,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406417286] [2022-01-28 13:01:10,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:10,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:11,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:11,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406417286] [2022-01-28 13:01:11,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406417286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:11,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:11,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 13:01:11,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77350253] [2022-01-28 13:01:11,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:11,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 13:01:11,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:11,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 13:01:11,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 13:01:11,301 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) [2022-01-28 13:01:11,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:11,601 INFO L93 Difference]: Finished difference Result 15733 states and 53560 transitions. [2022-01-28 13:01:11,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 13:01:11,604 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 [2022-01-28 13:01:11,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:11,810 INFO L225 Difference]: With dead ends: 15733 [2022-01-28 13:01:11,810 INFO L226 Difference]: Without dead ends: 15731 [2022-01-28 13:01:11,812 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 [2022-01-28 13:01:11,817 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 [2022-01-28 13:01:11,818 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] [2022-01-28 13:01:11,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15731 states. [2022-01-28 13:01:12,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15731 to 15731. [2022-01-28 13:01:12,446 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) [2022-01-28 13:01:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15731 states to 15731 states and 53558 transitions. [2022-01-28 13:01:12,554 INFO L78 Accepts]: Start accepts. Automaton has 15731 states and 53558 transitions. Word has length 134 [2022-01-28 13:01:12,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:12,555 INFO L470 AbstractCegarLoop]: Abstraction has 15731 states and 53558 transitions. [2022-01-28 13:01:12,555 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) [2022-01-28 13:01:12,557 INFO L276 IsEmpty]: Start isEmpty. Operand 15731 states and 53558 transitions. [2022-01-28 13:01:12,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:12,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:12,620 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] [2022-01-28 13:01:12,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 13:01:12,622 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:12,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:12,626 INFO L85 PathProgramCache]: Analyzing trace with hash 710948772, now seen corresponding path program 2 times [2022-01-28 13:01:12,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:12,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437805028] [2022-01-28 13:01:12,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:12,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:13,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:13,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437805028] [2022-01-28 13:01:13,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437805028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:13,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:13,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:01:13,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371486648] [2022-01-28 13:01:13,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:13,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:01:13,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:13,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:01:13,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:01:13,271 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) [2022-01-28 13:01:13,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:13,859 INFO L93 Difference]: Finished difference Result 17979 states and 60918 transitions. [2022-01-28 13:01:13,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:01:13,860 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 [2022-01-28 13:01:13,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:14,005 INFO L225 Difference]: With dead ends: 17979 [2022-01-28 13:01:14,005 INFO L226 Difference]: Without dead ends: 17979 [2022-01-28 13:01:14,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:01:14,010 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 203 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:14,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1053 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:01:14,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17979 states. [2022-01-28 13:01:14,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17979 to 17247. [2022-01-28 13:01:14,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17247 states, 17246 states have (on average 3.384089064130813) internal successors, (58362), 17246 states have internal predecessors, (58362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:14,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17247 states to 17247 states and 58362 transitions. [2022-01-28 13:01:14,613 INFO L78 Accepts]: Start accepts. Automaton has 17247 states and 58362 transitions. Word has length 134 [2022-01-28 13:01:14,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:14,614 INFO L470 AbstractCegarLoop]: Abstraction has 17247 states and 58362 transitions. [2022-01-28 13:01:14,614 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) [2022-01-28 13:01:14,614 INFO L276 IsEmpty]: Start isEmpty. Operand 17247 states and 58362 transitions. [2022-01-28 13:01:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:14,660 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:14,660 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] [2022-01-28 13:01:14,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 13:01:14,660 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:14,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:14,661 INFO L85 PathProgramCache]: Analyzing trace with hash -932759446, now seen corresponding path program 3 times [2022-01-28 13:01:14,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:14,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194803582] [2022-01-28 13:01:14,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:14,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:14,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:14,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:14,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194803582] [2022-01-28 13:01:14,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194803582] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:14,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:14,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-28 13:01:14,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321719598] [2022-01-28 13:01:14,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:14,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-28 13:01:14,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:14,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-28 13:01:14,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:01:14,920 INFO L87 Difference]: Start difference. First operand 17247 states and 58362 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) [2022-01-28 13:01:15,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:15,872 INFO L93 Difference]: Finished difference Result 24160 states and 79667 transitions. [2022-01-28 13:01:15,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-28 13:01:15,872 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 [2022-01-28 13:01:15,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:15,964 INFO L225 Difference]: With dead ends: 24160 [2022-01-28 13:01:15,964 INFO L226 Difference]: Without dead ends: 22873 [2022-01-28 13:01:15,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:01:15,966 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 512 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:15,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 1969 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-28 13:01:16,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22873 states. [2022-01-28 13:01:16,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22873 to 17431. [2022-01-28 13:01:16,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17431 states, 17430 states have (on average 3.3737234652897303) internal successors, (58804), 17430 states have internal predecessors, (58804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:16,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17431 states to 17431 states and 58804 transitions. [2022-01-28 13:01:16,716 INFO L78 Accepts]: Start accepts. Automaton has 17431 states and 58804 transitions. Word has length 134 [2022-01-28 13:01:16,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:16,717 INFO L470 AbstractCegarLoop]: Abstraction has 17431 states and 58804 transitions. [2022-01-28 13:01:16,717 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) [2022-01-28 13:01:16,717 INFO L276 IsEmpty]: Start isEmpty. Operand 17431 states and 58804 transitions. [2022-01-28 13:01:16,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:16,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:16,754 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] [2022-01-28 13:01:16,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 13:01:16,755 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:16,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:16,755 INFO L85 PathProgramCache]: Analyzing trace with hash 607818392, now seen corresponding path program 4 times [2022-01-28 13:01:16,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:16,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027419763] [2022-01-28 13:01:16,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:16,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:17,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:17,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027419763] [2022-01-28 13:01:17,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027419763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:17,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:17,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:01:17,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435336668] [2022-01-28 13:01:17,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:17,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:01:17,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:17,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:01:17,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:01:17,026 INFO L87 Difference]: Start difference. First operand 17431 states and 58804 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) [2022-01-28 13:01:17,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:17,745 INFO L93 Difference]: Finished difference Result 25413 states and 84927 transitions. [2022-01-28 13:01:17,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:01:17,745 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 [2022-01-28 13:01:17,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:17,818 INFO L225 Difference]: With dead ends: 25413 [2022-01-28 13:01:17,819 INFO L226 Difference]: Without dead ends: 23225 [2022-01-28 13:01:17,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-01-28 13:01:17,820 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 249 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:17,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 1411 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:01:17,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23225 states. [2022-01-28 13:01:18,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23225 to 17195. [2022-01-28 13:01:18,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17195 states, 17194 states have (on average 3.3669884843550077) internal successors, (57892), 17194 states have internal predecessors, (57892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:18,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17195 states to 17195 states and 57892 transitions. [2022-01-28 13:01:18,506 INFO L78 Accepts]: Start accepts. Automaton has 17195 states and 57892 transitions. Word has length 134 [2022-01-28 13:01:18,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:18,506 INFO L470 AbstractCegarLoop]: Abstraction has 17195 states and 57892 transitions. [2022-01-28 13:01:18,506 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) [2022-01-28 13:01:18,506 INFO L276 IsEmpty]: Start isEmpty. Operand 17195 states and 57892 transitions. [2022-01-28 13:01:18,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:18,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:18,550 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] [2022-01-28 13:01:18,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-28 13:01:18,551 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:18,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:18,552 INFO L85 PathProgramCache]: Analyzing trace with hash 939090806, now seen corresponding path program 5 times [2022-01-28 13:01:18,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:18,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373219687] [2022-01-28 13:01:18,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:18,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:18,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:18,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:18,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373219687] [2022-01-28 13:01:18,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373219687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:18,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:18,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:01:18,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565504923] [2022-01-28 13:01:18,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:18,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:01:18,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:18,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:01:18,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:01:18,948 INFO L87 Difference]: Start difference. First operand 17195 states and 57892 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) [2022-01-28 13:01:19,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:19,410 INFO L93 Difference]: Finished difference Result 18615 states and 62405 transitions. [2022-01-28 13:01:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:01:19,410 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 [2022-01-28 13:01:19,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:19,452 INFO L225 Difference]: With dead ends: 18615 [2022-01-28 13:01:19,452 INFO L226 Difference]: Without dead ends: 18031 [2022-01-28 13:01:19,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:01:19,455 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 142 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:19,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1157 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:01:19,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18031 states. [2022-01-28 13:01:19,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18031 to 17371. [2022-01-28 13:01:19,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17371 states, 17370 states have (on average 3.365572826712723) internal successors, (58460), 17370 states have internal predecessors, (58460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:19,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17371 states to 17371 states and 58460 transitions. [2022-01-28 13:01:19,937 INFO L78 Accepts]: Start accepts. Automaton has 17371 states and 58460 transitions. Word has length 134 [2022-01-28 13:01:19,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:19,938 INFO L470 AbstractCegarLoop]: Abstraction has 17371 states and 58460 transitions. [2022-01-28 13:01:19,938 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) [2022-01-28 13:01:19,938 INFO L276 IsEmpty]: Start isEmpty. Operand 17371 states and 58460 transitions. [2022-01-28 13:01:20,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:20,059 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:20,059 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] [2022-01-28 13:01:20,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-28 13:01:20,061 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:20,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:20,065 INFO L85 PathProgramCache]: Analyzing trace with hash -630940832, now seen corresponding path program 6 times [2022-01-28 13:01:20,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:20,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205501950] [2022-01-28 13:01:20,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:20,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:20,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:20,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:20,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205501950] [2022-01-28 13:01:20,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205501950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:20,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:20,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:01:20,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572629385] [2022-01-28 13:01:20,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:20,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:01:20,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:20,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:01:20,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:01:20,322 INFO L87 Difference]: Start difference. First operand 17371 states and 58460 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) [2022-01-28 13:01:21,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:21,073 INFO L93 Difference]: Finished difference Result 24053 states and 80726 transitions. [2022-01-28 13:01:21,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:01:21,074 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 [2022-01-28 13:01:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:21,133 INFO L225 Difference]: With dead ends: 24053 [2022-01-28 13:01:21,133 INFO L226 Difference]: Without dead ends: 22523 [2022-01-28 13:01:21,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:01:21,134 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 305 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:21,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1428 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-28 13:01:21,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22523 states. [2022-01-28 13:01:21,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22523 to 17801. [2022-01-28 13:01:21,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17801 states, 17800 states have (on average 3.3552808988764045) internal successors, (59724), 17800 states have internal predecessors, (59724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:21,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17801 states to 17801 states and 59724 transitions. [2022-01-28 13:01:21,683 INFO L78 Accepts]: Start accepts. Automaton has 17801 states and 59724 transitions. Word has length 134 [2022-01-28 13:01:21,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:21,683 INFO L470 AbstractCegarLoop]: Abstraction has 17801 states and 59724 transitions. [2022-01-28 13:01:21,683 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) [2022-01-28 13:01:21,683 INFO L276 IsEmpty]: Start isEmpty. Operand 17801 states and 59724 transitions. [2022-01-28 13:01:21,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:21,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:21,723 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] [2022-01-28 13:01:21,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-28 13:01:21,723 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:21,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:21,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1577188288, now seen corresponding path program 7 times [2022-01-28 13:01:21,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:21,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921158190] [2022-01-28 13:01:21,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:21,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:21,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:21,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:21,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921158190] [2022-01-28 13:01:21,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921158190] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:21,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:21,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:01:21,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119270674] [2022-01-28 13:01:21,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:21,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:01:21,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:21,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:01:21,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:01:21,953 INFO L87 Difference]: Start difference. First operand 17801 states and 59724 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) [2022-01-28 13:01:22,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:22,801 INFO L93 Difference]: Finished difference Result 30935 states and 104435 transitions. [2022-01-28 13:01:22,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:01:22,802 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 [2022-01-28 13:01:22,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:22,906 INFO L225 Difference]: With dead ends: 30935 [2022-01-28 13:01:22,907 INFO L226 Difference]: Without dead ends: 30935 [2022-01-28 13:01:22,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:01:22,910 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 351 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:22,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1556 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-28 13:01:22,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30935 states. [2022-01-28 13:01:23,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30935 to 20133. [2022-01-28 13:01:23,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20133 states, 20132 states have (on average 3.351728591297437) internal successors, (67477), 20132 states have internal predecessors, (67477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:23,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20133 states to 20133 states and 67477 transitions. [2022-01-28 13:01:23,552 INFO L78 Accepts]: Start accepts. Automaton has 20133 states and 67477 transitions. Word has length 134 [2022-01-28 13:01:23,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:23,552 INFO L470 AbstractCegarLoop]: Abstraction has 20133 states and 67477 transitions. [2022-01-28 13:01:23,553 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) [2022-01-28 13:01:23,553 INFO L276 IsEmpty]: Start isEmpty. Operand 20133 states and 67477 transitions. [2022-01-28 13:01:23,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:23,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:23,590 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] [2022-01-28 13:01:23,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-28 13:01:23,590 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:23,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:23,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1664706560, now seen corresponding path program 8 times [2022-01-28 13:01:23,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:23,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270883544] [2022-01-28 13:01:23,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:23,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:23,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:23,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:23,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270883544] [2022-01-28 13:01:23,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270883544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:23,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:23,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-28 13:01:23,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177196057] [2022-01-28 13:01:23,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:23,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-28 13:01:23,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:23,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-28 13:01:23,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:01:23,795 INFO L87 Difference]: Start difference. First operand 20133 states and 67477 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) [2022-01-28 13:01:24,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:24,802 INFO L93 Difference]: Finished difference Result 27128 states and 89226 transitions. [2022-01-28 13:01:24,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-28 13:01:24,802 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 [2022-01-28 13:01:24,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:24,887 INFO L225 Difference]: With dead ends: 27128 [2022-01-28 13:01:24,887 INFO L226 Difference]: Without dead ends: 25286 [2022-01-28 13:01:24,888 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 [2022-01-28 13:01:24,888 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 474 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:24,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2038 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-28 13:01:24,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25286 states. [2022-01-28 13:01:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25286 to 19661. [2022-01-28 13:01:25,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19661 states, 19660 states have (on average 3.3399287894201426) internal successors, (65663), 19660 states have internal predecessors, (65663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:25,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19661 states to 19661 states and 65663 transitions. [2022-01-28 13:01:25,477 INFO L78 Accepts]: Start accepts. Automaton has 19661 states and 65663 transitions. Word has length 134 [2022-01-28 13:01:25,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:25,478 INFO L470 AbstractCegarLoop]: Abstraction has 19661 states and 65663 transitions. [2022-01-28 13:01:25,479 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) [2022-01-28 13:01:25,479 INFO L276 IsEmpty]: Start isEmpty. Operand 19661 states and 65663 transitions. [2022-01-28 13:01:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:25,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:25,514 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] [2022-01-28 13:01:25,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-28 13:01:25,514 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:25,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:25,515 INFO L85 PathProgramCache]: Analyzing trace with hash -593083748, now seen corresponding path program 9 times [2022-01-28 13:01:25,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:25,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90974858] [2022-01-28 13:01:25,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:25,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:25,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:25,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90974858] [2022-01-28 13:01:25,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90974858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:25,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:25,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:01:25,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335590056] [2022-01-28 13:01:25,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:25,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:01:25,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:25,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:01:25,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:01:25,840 INFO L87 Difference]: Start difference. First operand 19661 states and 65663 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) [2022-01-28 13:01:26,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:26,374 INFO L93 Difference]: Finished difference Result 35759 states and 121154 transitions. [2022-01-28 13:01:26,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:01:26,374 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 [2022-01-28 13:01:26,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:26,461 INFO L225 Difference]: With dead ends: 35759 [2022-01-28 13:01:26,462 INFO L226 Difference]: Without dead ends: 34429 [2022-01-28 13:01:26,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-01-28 13:01:26,462 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 403 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:26,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 1257 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:01:26,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34429 states. [2022-01-28 13:01:27,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34429 to 21067. [2022-01-28 13:01:27,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21067 states, 21066 states have (on average 3.351988986993259) internal successors, (70613), 21066 states have internal predecessors, (70613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:27,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21067 states to 21067 states and 70613 transitions. [2022-01-28 13:01:27,221 INFO L78 Accepts]: Start accepts. Automaton has 21067 states and 70613 transitions. Word has length 134 [2022-01-28 13:01:27,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:27,222 INFO L470 AbstractCegarLoop]: Abstraction has 21067 states and 70613 transitions. [2022-01-28 13:01:27,222 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) [2022-01-28 13:01:27,222 INFO L276 IsEmpty]: Start isEmpty. Operand 21067 states and 70613 transitions. [2022-01-28 13:01:27,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:27,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:27,263 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] [2022-01-28 13:01:27,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-28 13:01:27,264 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:27,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:27,264 INFO L85 PathProgramCache]: Analyzing trace with hash -626810890, now seen corresponding path program 10 times [2022-01-28 13:01:27,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:27,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310178980] [2022-01-28 13:01:27,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:27,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:27,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:27,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310178980] [2022-01-28 13:01:27,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310178980] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:27,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:27,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:01:27,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555361207] [2022-01-28 13:01:27,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:27,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:01:27,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:27,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:01:27,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:01:27,462 INFO L87 Difference]: Start difference. First operand 21067 states and 70613 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) [2022-01-28 13:01:28,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:28,377 INFO L93 Difference]: Finished difference Result 46374 states and 158689 transitions. [2022-01-28 13:01:28,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 13:01:28,378 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 [2022-01-28 13:01:28,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:28,510 INFO L225 Difference]: With dead ends: 46374 [2022-01-28 13:01:28,510 INFO L226 Difference]: Without dead ends: 45886 [2022-01-28 13:01:28,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-01-28 13:01:28,511 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 295 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:28,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 1414 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-28 13:01:28,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45886 states. [2022-01-28 13:01:29,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45886 to 21131. [2022-01-28 13:01:29,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21131 states, 21130 states have (on average 3.3513014671083767) internal successors, (70813), 21130 states have internal predecessors, (70813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:29,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21131 states to 21131 states and 70813 transitions. [2022-01-28 13:01:29,214 INFO L78 Accepts]: Start accepts. Automaton has 21131 states and 70813 transitions. Word has length 134 [2022-01-28 13:01:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:29,214 INFO L470 AbstractCegarLoop]: Abstraction has 21131 states and 70813 transitions. [2022-01-28 13:01:29,214 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) [2022-01-28 13:01:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 21131 states and 70813 transitions. [2022-01-28 13:01:29,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:29,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:29,261 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] [2022-01-28 13:01:29,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-28 13:01:29,261 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:29,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:29,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2039189400, now seen corresponding path program 11 times [2022-01-28 13:01:29,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:29,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259440642] [2022-01-28 13:01:29,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:29,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:29,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:29,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259440642] [2022-01-28 13:01:29,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259440642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:29,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:29,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:01:29,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790191499] [2022-01-28 13:01:29,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:29,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:01:29,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:29,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:01:29,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:01:29,624 INFO L87 Difference]: Start difference. First operand 21131 states and 70813 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) [2022-01-28 13:01:30,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:30,201 INFO L93 Difference]: Finished difference Result 49935 states and 170999 transitions. [2022-01-28 13:01:30,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:01:30,201 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 [2022-01-28 13:01:30,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:30,522 INFO L225 Difference]: With dead ends: 49935 [2022-01-28 13:01:30,523 INFO L226 Difference]: Without dead ends: 47907 [2022-01-28 13:01:30,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2022-01-28 13:01:30,523 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 520 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:30,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 1027 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:01:30,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47907 states. [2022-01-28 13:01:31,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47907 to 22955. [2022-01-28 13:01:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22955 states, 22954 states have (on average 3.3591095233946153) internal successors, (77105), 22954 states have internal predecessors, (77105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:31,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22955 states to 22955 states and 77105 transitions. [2022-01-28 13:01:31,335 INFO L78 Accepts]: Start accepts. Automaton has 22955 states and 77105 transitions. Word has length 134 [2022-01-28 13:01:31,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:31,335 INFO L470 AbstractCegarLoop]: Abstraction has 22955 states and 77105 transitions. [2022-01-28 13:01:31,335 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) [2022-01-28 13:01:31,335 INFO L276 IsEmpty]: Start isEmpty. Operand 22955 states and 77105 transitions. [2022-01-28 13:01:31,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:31,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:31,376 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] [2022-01-28 13:01:31,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-28 13:01:31,377 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:31,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:31,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1164075774, now seen corresponding path program 12 times [2022-01-28 13:01:31,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:31,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911008138] [2022-01-28 13:01:31,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:31,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:31,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:31,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:31,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911008138] [2022-01-28 13:01:31,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911008138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:31,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:31,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:01:31,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27950521] [2022-01-28 13:01:31,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:31,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:01:31,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:31,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:01:31,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:01:31,574 INFO L87 Difference]: Start difference. First operand 22955 states and 77105 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) [2022-01-28 13:01:32,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:32,170 INFO L93 Difference]: Finished difference Result 27119 states and 90992 transitions. [2022-01-28 13:01:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 13:01:32,170 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 [2022-01-28 13:01:32,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:32,256 INFO L225 Difference]: With dead ends: 27119 [2022-01-28 13:01:32,256 INFO L226 Difference]: Without dead ends: 27119 [2022-01-28 13:01:32,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:01:32,257 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 215 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:32,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 902 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:01:32,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27119 states. [2022-01-28 13:01:32,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27119 to 24727. [2022-01-28 13:01:32,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24727 states, 24726 states have (on average 3.3670630105961337) internal successors, (83254), 24726 states have internal predecessors, (83254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:32,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24727 states to 24727 states and 83254 transitions. [2022-01-28 13:01:32,923 INFO L78 Accepts]: Start accepts. Automaton has 24727 states and 83254 transitions. Word has length 134 [2022-01-28 13:01:32,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:32,923 INFO L470 AbstractCegarLoop]: Abstraction has 24727 states and 83254 transitions. [2022-01-28 13:01:32,924 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) [2022-01-28 13:01:32,924 INFO L276 IsEmpty]: Start isEmpty. Operand 24727 states and 83254 transitions. [2022-01-28 13:01:32,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:32,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:32,970 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] [2022-01-28 13:01:32,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-28 13:01:32,970 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:32,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:32,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1501924516, now seen corresponding path program 13 times [2022-01-28 13:01:32,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:32,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183889204] [2022-01-28 13:01:32,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:32,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:33,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:33,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183889204] [2022-01-28 13:01:33,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183889204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:33,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:33,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:01:33,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153644813] [2022-01-28 13:01:33,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:33,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:01:33,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:33,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:01:33,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:01:33,186 INFO L87 Difference]: Start difference. First operand 24727 states and 83254 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) [2022-01-28 13:01:33,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:33,583 INFO L93 Difference]: Finished difference Result 25271 states and 84846 transitions. [2022-01-28 13:01:33,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:01:33,583 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 [2022-01-28 13:01:33,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:34,044 INFO L225 Difference]: With dead ends: 25271 [2022-01-28 13:01:34,045 INFO L226 Difference]: Without dead ends: 24687 [2022-01-28 13:01:34,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:01:34,046 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 228 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:34,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 830 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:01:34,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24687 states. [2022-01-28 13:01:34,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24687 to 24687. [2022-01-28 13:01:34,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24687 states, 24686 states have (on average 3.3651462367333713) internal successors, (83072), 24686 states have internal predecessors, (83072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:34,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24687 states to 24687 states and 83072 transitions. [2022-01-28 13:01:34,774 INFO L78 Accepts]: Start accepts. Automaton has 24687 states and 83072 transitions. Word has length 134 [2022-01-28 13:01:34,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:34,774 INFO L470 AbstractCegarLoop]: Abstraction has 24687 states and 83072 transitions. [2022-01-28 13:01:34,774 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) [2022-01-28 13:01:34,774 INFO L276 IsEmpty]: Start isEmpty. Operand 24687 states and 83072 transitions. [2022-01-28 13:01:34,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:34,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:34,821 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] [2022-01-28 13:01:34,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-28 13:01:34,822 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:34,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:34,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1572281214, now seen corresponding path program 14 times [2022-01-28 13:01:34,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:34,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160735745] [2022-01-28 13:01:34,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:34,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:35,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:35,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160735745] [2022-01-28 13:01:35,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160735745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:35,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:35,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:01:35,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875049481] [2022-01-28 13:01:35,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:35,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:01:35,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:35,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:01:35,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:01:35,029 INFO L87 Difference]: Start difference. First operand 24687 states and 83072 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) [2022-01-28 13:01:35,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:35,434 INFO L93 Difference]: Finished difference Result 25339 states and 85049 transitions. [2022-01-28 13:01:35,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:01:35,435 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 [2022-01-28 13:01:35,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:35,507 INFO L225 Difference]: With dead ends: 25339 [2022-01-28 13:01:35,508 INFO L226 Difference]: Without dead ends: 24591 [2022-01-28 13:01:35,508 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 [2022-01-28 13:01:35,508 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 223 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:35,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 866 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:01:35,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24591 states. [2022-01-28 13:01:36,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24591 to 24591. [2022-01-28 13:01:36,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24591 states, 24590 states have (on average 3.367059780398536) internal successors, (82796), 24590 states have internal predecessors, (82796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:36,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24591 states to 24591 states and 82796 transitions. [2022-01-28 13:01:36,207 INFO L78 Accepts]: Start accepts. Automaton has 24591 states and 82796 transitions. Word has length 134 [2022-01-28 13:01:36,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:36,207 INFO L470 AbstractCegarLoop]: Abstraction has 24591 states and 82796 transitions. [2022-01-28 13:01:36,207 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) [2022-01-28 13:01:36,207 INFO L276 IsEmpty]: Start isEmpty. Operand 24591 states and 82796 transitions. [2022-01-28 13:01:36,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:36,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:36,416 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] [2022-01-28 13:01:36,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-28 13:01:36,416 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:36,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:36,416 INFO L85 PathProgramCache]: Analyzing trace with hash 2013529500, now seen corresponding path program 15 times [2022-01-28 13:01:36,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:36,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376518839] [2022-01-28 13:01:36,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:36,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:36,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:36,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376518839] [2022-01-28 13:01:36,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376518839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:36,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:36,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:01:36,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193143060] [2022-01-28 13:01:36,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:36,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:01:36,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:36,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:01:36,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:01:36,592 INFO L87 Difference]: Start difference. First operand 24591 states and 82796 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) [2022-01-28 13:01:37,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:37,047 INFO L93 Difference]: Finished difference Result 39185 states and 132044 transitions. [2022-01-28 13:01:37,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:01:37,047 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 [2022-01-28 13:01:37,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:37,177 INFO L225 Difference]: With dead ends: 39185 [2022-01-28 13:01:37,178 INFO L226 Difference]: Without dead ends: 38585 [2022-01-28 13:01:37,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:01:37,181 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 392 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:37,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 764 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:01:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38585 states. [2022-01-28 13:01:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38585 to 27673. [2022-01-28 13:01:37,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27673 states, 27672 states have (on average 3.3478606533680253) internal successors, (92642), 27672 states have internal predecessors, (92642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:38,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27673 states to 27673 states and 92642 transitions. [2022-01-28 13:01:38,262 INFO L78 Accepts]: Start accepts. Automaton has 27673 states and 92642 transitions. Word has length 134 [2022-01-28 13:01:38,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:38,263 INFO L470 AbstractCegarLoop]: Abstraction has 27673 states and 92642 transitions. [2022-01-28 13:01:38,263 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) [2022-01-28 13:01:38,263 INFO L276 IsEmpty]: Start isEmpty. Operand 27673 states and 92642 transitions. [2022-01-28 13:01:38,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:38,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:38,314 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] [2022-01-28 13:01:38,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-28 13:01:38,314 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:38,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:38,315 INFO L85 PathProgramCache]: Analyzing trace with hash -13205420, now seen corresponding path program 16 times [2022-01-28 13:01:38,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:38,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964007949] [2022-01-28 13:01:38,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:38,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:38,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:38,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964007949] [2022-01-28 13:01:38,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964007949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:38,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:38,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:01:38,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126087692] [2022-01-28 13:01:38,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:38,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:01:38,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:38,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:01:38,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:01:38,529 INFO L87 Difference]: Start difference. First operand 27673 states and 92642 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) [2022-01-28 13:01:38,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:38,985 INFO L93 Difference]: Finished difference Result 27673 states and 92530 transitions. [2022-01-28 13:01:38,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:01:38,986 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 [2022-01-28 13:01:38,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:39,075 INFO L225 Difference]: With dead ends: 27673 [2022-01-28 13:01:39,075 INFO L226 Difference]: Without dead ends: 27117 [2022-01-28 13:01:39,075 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 [2022-01-28 13:01:39,076 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 156 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:39,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 1091 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:01:39,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27117 states. [2022-01-28 13:01:39,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27117 to 27117. [2022-01-28 13:01:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27117 states, 27116 states have (on average 3.3515636524561145) internal successors, (90881), 27116 states have internal predecessors, (90881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:39,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27117 states to 27117 states and 90881 transitions. [2022-01-28 13:01:39,741 INFO L78 Accepts]: Start accepts. Automaton has 27117 states and 90881 transitions. Word has length 134 [2022-01-28 13:01:39,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:39,741 INFO L470 AbstractCegarLoop]: Abstraction has 27117 states and 90881 transitions. [2022-01-28 13:01:39,741 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) [2022-01-28 13:01:39,741 INFO L276 IsEmpty]: Start isEmpty. Operand 27117 states and 90881 transitions. [2022-01-28 13:01:39,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:39,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:39,973 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] [2022-01-28 13:01:39,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-28 13:01:39,973 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:39,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:39,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1095133630, now seen corresponding path program 17 times [2022-01-28 13:01:39,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:39,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592412596] [2022-01-28 13:01:39,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:39,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:40,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:40,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:40,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592412596] [2022-01-28 13:01:40,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592412596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:40,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:40,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:01:40,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130599683] [2022-01-28 13:01:40,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:40,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:01:40,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:40,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:01:40,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:01:40,196 INFO L87 Difference]: Start difference. First operand 27117 states and 90881 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) [2022-01-28 13:01:40,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:40,588 INFO L93 Difference]: Finished difference Result 27289 states and 91358 transitions. [2022-01-28 13:01:40,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:01:40,588 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 [2022-01-28 13:01:40,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:40,666 INFO L225 Difference]: With dead ends: 27289 [2022-01-28 13:01:40,666 INFO L226 Difference]: Without dead ends: 26637 [2022-01-28 13:01:40,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:01:40,667 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 146 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:40,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 968 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:01:40,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26637 states. [2022-01-28 13:01:41,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26637 to 26637. [2022-01-28 13:01:41,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26637 states, 26636 states have (on average 3.3520423487010063) internal successors, (89285), 26636 states have internal predecessors, (89285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:41,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26637 states to 26637 states and 89285 transitions. [2022-01-28 13:01:41,400 INFO L78 Accepts]: Start accepts. Automaton has 26637 states and 89285 transitions. Word has length 134 [2022-01-28 13:01:41,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:41,401 INFO L470 AbstractCegarLoop]: Abstraction has 26637 states and 89285 transitions. [2022-01-28 13:01:41,401 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) [2022-01-28 13:01:41,401 INFO L276 IsEmpty]: Start isEmpty. Operand 26637 states and 89285 transitions. [2022-01-28 13:01:41,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:41,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:41,454 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] [2022-01-28 13:01:41,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-28 13:01:41,454 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:41,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:41,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1515671700, now seen corresponding path program 18 times [2022-01-28 13:01:41,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:41,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954650450] [2022-01-28 13:01:41,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:41,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:41,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:41,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:41,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954650450] [2022-01-28 13:01:41,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954650450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:41,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:41,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 13:01:41,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023386568] [2022-01-28 13:01:41,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:41,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 13:01:41,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:41,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 13:01:41,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 13:01:41,519 INFO L87 Difference]: Start difference. First operand 26637 states and 89285 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) [2022-01-28 13:01:41,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:41,819 INFO L93 Difference]: Finished difference Result 25597 states and 84857 transitions. [2022-01-28 13:01:41,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 13:01:41,819 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 [2022-01-28 13:01:41,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:41,878 INFO L225 Difference]: With dead ends: 25597 [2022-01-28 13:01:41,878 INFO L226 Difference]: Without dead ends: 25409 [2022-01-28 13:01:41,879 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 [2022-01-28 13:01:41,879 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 [2022-01-28 13:01:41,879 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] [2022-01-28 13:01:41,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25409 states. [2022-01-28 13:01:42,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25409 to 25409. [2022-01-28 13:01:42,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25409 states, 25408 states have (on average 3.3199386020151134) internal successors, (84353), 25408 states have internal predecessors, (84353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:42,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25409 states to 25409 states and 84353 transitions. [2022-01-28 13:01:42,550 INFO L78 Accepts]: Start accepts. Automaton has 25409 states and 84353 transitions. Word has length 134 [2022-01-28 13:01:42,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:42,550 INFO L470 AbstractCegarLoop]: Abstraction has 25409 states and 84353 transitions. [2022-01-28 13:01:42,550 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) [2022-01-28 13:01:42,550 INFO L276 IsEmpty]: Start isEmpty. Operand 25409 states and 84353 transitions. [2022-01-28 13:01:42,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:42,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:42,598 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] [2022-01-28 13:01:42,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-28 13:01:42,598 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:42,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:42,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1915533884, now seen corresponding path program 19 times [2022-01-28 13:01:42,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:42,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445229916] [2022-01-28 13:01:42,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:42,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:42,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:42,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445229916] [2022-01-28 13:01:42,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445229916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:42,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:42,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-28 13:01:42,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979798866] [2022-01-28 13:01:42,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:42,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-28 13:01:42,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:42,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-28 13:01:42,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:01:42,752 INFO L87 Difference]: Start difference. First operand 25409 states and 84353 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) [2022-01-28 13:01:43,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:43,382 INFO L93 Difference]: Finished difference Result 31804 states and 103972 transitions. [2022-01-28 13:01:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-28 13:01:43,383 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 [2022-01-28 13:01:43,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:43,450 INFO L225 Difference]: With dead ends: 31804 [2022-01-28 13:01:43,450 INFO L226 Difference]: Without dead ends: 27810 [2022-01-28 13:01:43,451 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 [2022-01-28 13:01:43,451 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 622 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:43,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [622 Valid, 2008 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:01:43,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27810 states. [2022-01-28 13:01:43,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27810 to 23068. [2022-01-28 13:01:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23068 states, 23067 states have (on average 3.3203710929032817) internal successors, (76591), 23067 states have internal predecessors, (76591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:44,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23068 states to 23068 states and 76591 transitions. [2022-01-28 13:01:44,079 INFO L78 Accepts]: Start accepts. Automaton has 23068 states and 76591 transitions. Word has length 134 [2022-01-28 13:01:44,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:44,079 INFO L470 AbstractCegarLoop]: Abstraction has 23068 states and 76591 transitions. [2022-01-28 13:01:44,079 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) [2022-01-28 13:01:44,079 INFO L276 IsEmpty]: Start isEmpty. Operand 23068 states and 76591 transitions. [2022-01-28 13:01:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:44,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:44,118 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] [2022-01-28 13:01:44,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-28 13:01:44,119 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:44,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:44,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1576421818, now seen corresponding path program 20 times [2022-01-28 13:01:44,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:44,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186190650] [2022-01-28 13:01:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:44,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:44,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:44,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:44,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186190650] [2022-01-28 13:01:44,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186190650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:44,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:44,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:01:44,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139165999] [2022-01-28 13:01:44,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:44,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:01:44,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:44,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:01:44,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:01:44,505 INFO L87 Difference]: Start difference. First operand 23068 states and 76591 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) [2022-01-28 13:01:45,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:45,203 INFO L93 Difference]: Finished difference Result 38984 states and 128175 transitions. [2022-01-28 13:01:45,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-28 13:01:45,203 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 [2022-01-28 13:01:45,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:45,294 INFO L225 Difference]: With dead ends: 38984 [2022-01-28 13:01:45,294 INFO L226 Difference]: Without dead ends: 38636 [2022-01-28 13:01:45,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2022-01-28 13:01:45,295 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 591 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:45,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [591 Valid, 1536 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:01:45,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38636 states. [2022-01-28 13:01:45,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38636 to 24616. [2022-01-28 13:01:45,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24616 states, 24615 states have (on average 3.315945561649401) internal successors, (81622), 24615 states have internal predecessors, (81622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:46,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24616 states to 24616 states and 81622 transitions. [2022-01-28 13:01:46,011 INFO L78 Accepts]: Start accepts. Automaton has 24616 states and 81622 transitions. Word has length 134 [2022-01-28 13:01:46,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:46,012 INFO L470 AbstractCegarLoop]: Abstraction has 24616 states and 81622 transitions. [2022-01-28 13:01:46,012 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) [2022-01-28 13:01:46,012 INFO L276 IsEmpty]: Start isEmpty. Operand 24616 states and 81622 transitions. [2022-01-28 13:01:46,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:46,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:46,066 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] [2022-01-28 13:01:46,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-28 13:01:46,066 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:46,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:46,067 INFO L85 PathProgramCache]: Analyzing trace with hash -807444076, now seen corresponding path program 21 times [2022-01-28 13:01:46,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:46,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117512504] [2022-01-28 13:01:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:46,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:46,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:46,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:46,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117512504] [2022-01-28 13:01:46,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117512504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:46,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:46,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 13:01:46,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959884859] [2022-01-28 13:01:46,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:46,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 13:01:46,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:46,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 13:01:46,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:01:46,369 INFO L87 Difference]: Start difference. First operand 24616 states and 81622 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) [2022-01-28 13:01:46,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:46,794 INFO L93 Difference]: Finished difference Result 29397 states and 96847 transitions. [2022-01-28 13:01:46,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:01:46,795 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 [2022-01-28 13:01:46,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:46,890 INFO L225 Difference]: With dead ends: 29397 [2022-01-28 13:01:46,890 INFO L226 Difference]: Without dead ends: 28349 [2022-01-28 13:01:46,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:01:46,891 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 226 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:46,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 927 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:01:46,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28349 states. [2022-01-28 13:01:47,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28349 to 24320. [2022-01-28 13:01:47,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24320 states, 24319 states have (on average 3.3188453472593444) internal successors, (80711), 24319 states have internal predecessors, (80711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:47,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24320 states to 24320 states and 80711 transitions. [2022-01-28 13:01:47,525 INFO L78 Accepts]: Start accepts. Automaton has 24320 states and 80711 transitions. Word has length 134 [2022-01-28 13:01:47,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:47,525 INFO L470 AbstractCegarLoop]: Abstraction has 24320 states and 80711 transitions. [2022-01-28 13:01:47,526 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) [2022-01-28 13:01:47,526 INFO L276 IsEmpty]: Start isEmpty. Operand 24320 states and 80711 transitions. [2022-01-28 13:01:47,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:47,568 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:47,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:01:47,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-28 13:01:47,568 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:47,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:47,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1326219728, now seen corresponding path program 22 times [2022-01-28 13:01:47,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:47,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952815973] [2022-01-28 13:01:47,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:47,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:47,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:47,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:47,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952815973] [2022-01-28 13:01:47,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952815973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:47,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:47,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:01:47,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616711230] [2022-01-28 13:01:47,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:47,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:01:47,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:47,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:01:47,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:01:47,865 INFO L87 Difference]: Start difference. First operand 24320 states and 80711 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) [2022-01-28 13:01:48,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:48,605 INFO L93 Difference]: Finished difference Result 24776 states and 82057 transitions. [2022-01-28 13:01:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-28 13:01:48,606 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 [2022-01-28 13:01:48,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:48,675 INFO L225 Difference]: With dead ends: 24776 [2022-01-28 13:01:48,675 INFO L226 Difference]: Without dead ends: 24776 [2022-01-28 13:01:48,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-01-28 13:01:48,676 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 206 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:48,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 995 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:01:48,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24776 states. [2022-01-28 13:01:49,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24776 to 24754. [2022-01-28 13:01:49,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24754 states, 24753 states have (on average 3.311881388114572) internal successors, (81979), 24753 states have internal predecessors, (81979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:49,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24754 states to 24754 states and 81979 transitions. [2022-01-28 13:01:49,383 INFO L78 Accepts]: Start accepts. Automaton has 24754 states and 81979 transitions. Word has length 134 [2022-01-28 13:01:49,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:49,383 INFO L470 AbstractCegarLoop]: Abstraction has 24754 states and 81979 transitions. [2022-01-28 13:01:49,383 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) [2022-01-28 13:01:49,383 INFO L276 IsEmpty]: Start isEmpty. Operand 24754 states and 81979 transitions. [2022-01-28 13:01:49,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:49,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:49,429 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] [2022-01-28 13:01:49,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-28 13:01:49,429 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:49,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:49,429 INFO L85 PathProgramCache]: Analyzing trace with hash -145875978, now seen corresponding path program 23 times [2022-01-28 13:01:49,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:49,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362362878] [2022-01-28 13:01:49,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:49,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:49,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:49,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:49,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362362878] [2022-01-28 13:01:49,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362362878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:49,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:49,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-28 13:01:49,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741076664] [2022-01-28 13:01:49,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:49,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-28 13:01:49,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:49,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-28 13:01:49,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:01:49,628 INFO L87 Difference]: Start difference. First operand 24754 states and 81979 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) [2022-01-28 13:01:50,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:50,448 INFO L93 Difference]: Finished difference Result 51075 states and 171087 transitions. [2022-01-28 13:01:50,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-28 13:01:50,448 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 [2022-01-28 13:01:50,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:50,796 INFO L225 Difference]: With dead ends: 51075 [2022-01-28 13:01:50,797 INFO L226 Difference]: Without dead ends: 50691 [2022-01-28 13:01:50,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2022-01-28 13:01:50,797 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 406 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:50,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 1485 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-28 13:01:50,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50691 states. [2022-01-28 13:01:51,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50691 to 25210. [2022-01-28 13:01:51,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25210 states, 25209 states have (on average 3.306160498234757) internal successors, (83345), 25209 states have internal predecessors, (83345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25210 states to 25210 states and 83345 transitions. [2022-01-28 13:01:51,619 INFO L78 Accepts]: Start accepts. Automaton has 25210 states and 83345 transitions. Word has length 134 [2022-01-28 13:01:51,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:51,619 INFO L470 AbstractCegarLoop]: Abstraction has 25210 states and 83345 transitions. [2022-01-28 13:01:51,619 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) [2022-01-28 13:01:51,619 INFO L276 IsEmpty]: Start isEmpty. Operand 25210 states and 83345 transitions. [2022-01-28 13:01:51,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:51,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:51,668 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] [2022-01-28 13:01:51,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-28 13:01:51,669 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:51,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:51,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1074885588, now seen corresponding path program 24 times [2022-01-28 13:01:51,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:51,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127328100] [2022-01-28 13:01:51,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:51,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:51,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:51,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127328100] [2022-01-28 13:01:51,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127328100] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:51,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:51,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:01:51,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050299351] [2022-01-28 13:01:51,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:51,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:01:51,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:51,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:01:51,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:01:51,930 INFO L87 Difference]: Start difference. First operand 25210 states and 83345 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) [2022-01-28 13:01:52,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:52,585 INFO L93 Difference]: Finished difference Result 35292 states and 116849 transitions. [2022-01-28 13:01:52,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-28 13:01:52,585 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 [2022-01-28 13:01:52,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:52,955 INFO L225 Difference]: With dead ends: 35292 [2022-01-28 13:01:52,955 INFO L226 Difference]: Without dead ends: 34824 [2022-01-28 13:01:52,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2022-01-28 13:01:52,956 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 352 mSDsluCounter, 1563 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:52,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 1528 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:01:53,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34824 states. [2022-01-28 13:01:53,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34824 to 24978. [2022-01-28 13:01:53,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24978 states, 24977 states have (on average 3.312647635824959) internal successors, (82740), 24977 states have internal predecessors, (82740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:53,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24978 states to 24978 states and 82740 transitions. [2022-01-28 13:01:53,716 INFO L78 Accepts]: Start accepts. Automaton has 24978 states and 82740 transitions. Word has length 134 [2022-01-28 13:01:53,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:53,716 INFO L470 AbstractCegarLoop]: Abstraction has 24978 states and 82740 transitions. [2022-01-28 13:01:53,716 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) [2022-01-28 13:01:53,716 INFO L276 IsEmpty]: Start isEmpty. Operand 24978 states and 82740 transitions. [2022-01-28 13:01:53,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:53,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:53,766 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] [2022-01-28 13:01:53,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-28 13:01:53,766 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:53,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:53,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1489755362, now seen corresponding path program 25 times [2022-01-28 13:01:53,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:53,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170854823] [2022-01-28 13:01:53,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:53,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:53,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:53,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:53,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170854823] [2022-01-28 13:01:53,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170854823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:53,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:53,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 13:01:53,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48717417] [2022-01-28 13:01:53,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:53,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 13:01:53,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:53,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 13:01:53,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 13:01:53,836 INFO L87 Difference]: Start difference. First operand 24978 states and 82740 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) [2022-01-28 13:01:54,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:54,006 INFO L93 Difference]: Finished difference Result 24126 states and 78765 transitions. [2022-01-28 13:01:54,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 13:01:54,006 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 [2022-01-28 13:01:54,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:54,073 INFO L225 Difference]: With dead ends: 24126 [2022-01-28 13:01:54,074 INFO L226 Difference]: Without dead ends: 24126 [2022-01-28 13:01:54,074 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 [2022-01-28 13:01:54,074 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 [2022-01-28 13:01:54,075 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] [2022-01-28 13:01:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24126 states. [2022-01-28 13:01:54,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24126 to 24126. [2022-01-28 13:01:54,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24126 states, 24125 states have (on average 3.2648704663212436) internal successors, (78765), 24125 states have internal predecessors, (78765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:54,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24126 states to 24126 states and 78765 transitions. [2022-01-28 13:01:54,666 INFO L78 Accepts]: Start accepts. Automaton has 24126 states and 78765 transitions. Word has length 134 [2022-01-28 13:01:54,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:54,666 INFO L470 AbstractCegarLoop]: Abstraction has 24126 states and 78765 transitions. [2022-01-28 13:01:54,666 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) [2022-01-28 13:01:54,666 INFO L276 IsEmpty]: Start isEmpty. Operand 24126 states and 78765 transitions. [2022-01-28 13:01:54,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:54,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:54,709 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] [2022-01-28 13:01:54,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-28 13:01:54,709 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:54,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:54,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1807242936, now seen corresponding path program 26 times [2022-01-28 13:01:54,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:54,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117460242] [2022-01-28 13:01:54,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:54,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:54,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:54,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:54,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117460242] [2022-01-28 13:01:54,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117460242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:54,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:54,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:01:54,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149828762] [2022-01-28 13:01:54,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:54,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:01:54,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:54,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:01:54,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:01:54,931 INFO L87 Difference]: Start difference. First operand 24126 states and 78765 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) [2022-01-28 13:01:56,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:56,137 INFO L93 Difference]: Finished difference Result 39935 states and 130531 transitions. [2022-01-28 13:01:56,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:01:56,138 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 [2022-01-28 13:01:56,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:56,239 INFO L225 Difference]: With dead ends: 39935 [2022-01-28 13:01:56,240 INFO L226 Difference]: Without dead ends: 39735 [2022-01-28 13:01:56,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2022-01-28 13:01:56,240 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 340 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:56,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 2073 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-28 13:01:56,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39735 states. [2022-01-28 13:01:56,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39735 to 25788. [2022-01-28 13:01:56,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25788 states, 25787 states have (on average 3.2641253344708576) internal successors, (84172), 25787 states have internal predecessors, (84172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:57,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25788 states to 25788 states and 84172 transitions. [2022-01-28 13:01:57,028 INFO L78 Accepts]: Start accepts. Automaton has 25788 states and 84172 transitions. Word has length 134 [2022-01-28 13:01:57,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:57,028 INFO L470 AbstractCegarLoop]: Abstraction has 25788 states and 84172 transitions. [2022-01-28 13:01:57,028 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) [2022-01-28 13:01:57,028 INFO L276 IsEmpty]: Start isEmpty. Operand 25788 states and 84172 transitions. [2022-01-28 13:01:57,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:57,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:57,080 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] [2022-01-28 13:01:57,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-28 13:01:57,080 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:57,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:57,081 INFO L85 PathProgramCache]: Analyzing trace with hash -774897258, now seen corresponding path program 27 times [2022-01-28 13:01:57,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:57,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981041133] [2022-01-28 13:01:57,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:57,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:57,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:57,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981041133] [2022-01-28 13:01:57,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981041133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:57,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:57,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-28 13:01:57,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303021510] [2022-01-28 13:01:57,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:57,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-28 13:01:57,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:57,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-28 13:01:57,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:01:57,369 INFO L87 Difference]: Start difference. First operand 25788 states and 84172 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) [2022-01-28 13:01:58,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:58,231 INFO L93 Difference]: Finished difference Result 39960 states and 131358 transitions. [2022-01-28 13:01:58,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:01:58,231 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 [2022-01-28 13:01:58,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:01:58,335 INFO L225 Difference]: With dead ends: 39960 [2022-01-28 13:01:58,335 INFO L226 Difference]: Without dead ends: 39348 [2022-01-28 13:01:58,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-01-28 13:01:58,336 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 431 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:01:58,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1444 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:01:58,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39348 states. [2022-01-28 13:01:59,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39348 to 25860. [2022-01-28 13:01:59,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25860 states, 25859 states have (on average 3.26130167446537) internal successors, (84334), 25859 states have internal predecessors, (84334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:01:59,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25860 states to 25860 states and 84334 transitions. [2022-01-28 13:01:59,131 INFO L78 Accepts]: Start accepts. Automaton has 25860 states and 84334 transitions. Word has length 134 [2022-01-28 13:01:59,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:01:59,132 INFO L470 AbstractCegarLoop]: Abstraction has 25860 states and 84334 transitions. [2022-01-28 13:01:59,132 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) [2022-01-28 13:01:59,132 INFO L276 IsEmpty]: Start isEmpty. Operand 25860 states and 84334 transitions. [2022-01-28 13:01:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:01:59,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:01:59,183 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] [2022-01-28 13:01:59,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-28 13:01:59,183 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:01:59,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:01:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash 788065912, now seen corresponding path program 28 times [2022-01-28 13:01:59,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:01:59,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164116564] [2022-01-28 13:01:59,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:01:59,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:01:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:01:59,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:01:59,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:01:59,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164116564] [2022-01-28 13:01:59,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164116564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:01:59,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:01:59,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 13:01:59,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471243172] [2022-01-28 13:01:59,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:01:59,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 13:01:59,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:01:59,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 13:01:59,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:01:59,369 INFO L87 Difference]: Start difference. First operand 25860 states and 84334 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) [2022-01-28 13:01:59,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:01:59,796 INFO L93 Difference]: Finished difference Result 33217 states and 108342 transitions. [2022-01-28 13:01:59,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:01:59,796 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 [2022-01-28 13:01:59,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:00,080 INFO L225 Difference]: With dead ends: 33217 [2022-01-28 13:02:00,081 INFO L226 Difference]: Without dead ends: 32307 [2022-01-28 13:02:00,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:00,081 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 289 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:00,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 735 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:00,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32307 states. [2022-01-28 13:02:00,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32307 to 23604. [2022-01-28 13:02:00,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23604 states, 23603 states have (on average 3.2810235986950813) internal successors, (77442), 23603 states have internal predecessors, (77442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:00,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23604 states to 23604 states and 77442 transitions. [2022-01-28 13:02:00,551 INFO L78 Accepts]: Start accepts. Automaton has 23604 states and 77442 transitions. Word has length 134 [2022-01-28 13:02:00,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:00,551 INFO L470 AbstractCegarLoop]: Abstraction has 23604 states and 77442 transitions. [2022-01-28 13:02:00,551 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) [2022-01-28 13:02:00,551 INFO L276 IsEmpty]: Start isEmpty. Operand 23604 states and 77442 transitions. [2022-01-28 13:02:00,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:00,772 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:00,772 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] [2022-01-28 13:02:00,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-28 13:02:00,773 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:00,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:00,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1713655916, now seen corresponding path program 29 times [2022-01-28 13:02:00,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:00,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920679570] [2022-01-28 13:02:00,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:00,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:00,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:00,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920679570] [2022-01-28 13:02:00,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920679570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:00,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:00,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 13:02:00,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250680308] [2022-01-28 13:02:00,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:00,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 13:02:00,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:00,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 13:02:00,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:02:00,926 INFO L87 Difference]: Start difference. First operand 23604 states and 77442 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) [2022-01-28 13:02:01,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:01,256 INFO L93 Difference]: Finished difference Result 28485 states and 92404 transitions. [2022-01-28 13:02:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:02:01,257 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 [2022-01-28 13:02:01,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:01,321 INFO L225 Difference]: With dead ends: 28485 [2022-01-28 13:02:01,322 INFO L226 Difference]: Without dead ends: 26928 [2022-01-28 13:02:01,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:01,322 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 236 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:01,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 604 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26928 states. [2022-01-28 13:02:01,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26928 to 25068. [2022-01-28 13:02:01,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25068 states, 25067 states have (on average 3.265568277017593) internal successors, (81858), 25067 states have internal predecessors, (81858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25068 states to 25068 states and 81858 transitions. [2022-01-28 13:02:01,931 INFO L78 Accepts]: Start accepts. Automaton has 25068 states and 81858 transitions. Word has length 134 [2022-01-28 13:02:01,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:01,931 INFO L470 AbstractCegarLoop]: Abstraction has 25068 states and 81858 transitions. [2022-01-28 13:02:01,931 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) [2022-01-28 13:02:01,931 INFO L276 IsEmpty]: Start isEmpty. Operand 25068 states and 81858 transitions. [2022-01-28 13:02:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:01,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:01,977 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] [2022-01-28 13:02:01,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-28 13:02:01,977 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:01,978 INFO L85 PathProgramCache]: Analyzing trace with hash -981233378, now seen corresponding path program 30 times [2022-01-28 13:02:01,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:01,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029844640] [2022-01-28 13:02:01,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:01,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:02,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:02,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029844640] [2022-01-28 13:02:02,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029844640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:02,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:02,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:02,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234938116] [2022-01-28 13:02:02,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:02,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:02,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:02,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:02,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:02,228 INFO L87 Difference]: Start difference. First operand 25068 states and 81858 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) [2022-01-28 13:02:02,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:02,568 INFO L93 Difference]: Finished difference Result 26342 states and 85800 transitions. [2022-01-28 13:02:02,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:02:02,568 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 [2022-01-28 13:02:02,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:02,813 INFO L225 Difference]: With dead ends: 26342 [2022-01-28 13:02:02,813 INFO L226 Difference]: Without dead ends: 26342 [2022-01-28 13:02:02,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:02,814 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 196 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:02,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 722 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:02,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26342 states. [2022-01-28 13:02:03,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26342 to 25628. [2022-01-28 13:02:03,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25628 states, 25627 states have (on average 3.260545518398564) internal successors, (83558), 25627 states have internal predecessors, (83558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25628 states to 25628 states and 83558 transitions. [2022-01-28 13:02:03,259 INFO L78 Accepts]: Start accepts. Automaton has 25628 states and 83558 transitions. Word has length 134 [2022-01-28 13:02:03,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:03,259 INFO L470 AbstractCegarLoop]: Abstraction has 25628 states and 83558 transitions. [2022-01-28 13:02:03,259 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) [2022-01-28 13:02:03,260 INFO L276 IsEmpty]: Start isEmpty. Operand 25628 states and 83558 transitions. [2022-01-28 13:02:03,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:03,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:03,516 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] [2022-01-28 13:02:03,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-28 13:02:03,516 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:03,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:03,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1255525630, now seen corresponding path program 31 times [2022-01-28 13:02:03,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:03,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189549413] [2022-01-28 13:02:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:03,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:03,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:03,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189549413] [2022-01-28 13:02:03,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189549413] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:03,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:03,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:03,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373139645] [2022-01-28 13:02:03,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:03,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:03,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:03,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:03,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:03,772 INFO L87 Difference]: Start difference. First operand 25628 states and 83558 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) [2022-01-28 13:02:04,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:04,319 INFO L93 Difference]: Finished difference Result 37645 states and 122228 transitions. [2022-01-28 13:02:04,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:02:04,320 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 [2022-01-28 13:02:04,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:04,426 INFO L225 Difference]: With dead ends: 37645 [2022-01-28 13:02:04,426 INFO L226 Difference]: Without dead ends: 35560 [2022-01-28 13:02:04,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:02:04,427 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 544 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:04,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [544 Valid, 748 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:02:04,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35560 states. [2022-01-28 13:02:05,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35560 to 24022. [2022-01-28 13:02:05,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24022 states, 24021 states have (on average 3.245077224095583) internal successors, (77950), 24021 states have internal predecessors, (77950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:05,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24022 states to 24022 states and 77950 transitions. [2022-01-28 13:02:05,122 INFO L78 Accepts]: Start accepts. Automaton has 24022 states and 77950 transitions. Word has length 134 [2022-01-28 13:02:05,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:05,122 INFO L470 AbstractCegarLoop]: Abstraction has 24022 states and 77950 transitions. [2022-01-28 13:02:05,123 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) [2022-01-28 13:02:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 24022 states and 77950 transitions. [2022-01-28 13:02:05,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:05,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:05,164 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] [2022-01-28 13:02:05,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-28 13:02:05,164 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:05,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:05,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1988824622, now seen corresponding path program 32 times [2022-01-28 13:02:05,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:05,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773703303] [2022-01-28 13:02:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:05,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:05,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:05,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:05,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773703303] [2022-01-28 13:02:05,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773703303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:05,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:05,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 13:02:05,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678781154] [2022-01-28 13:02:05,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:05,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 13:02:05,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:05,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 13:02:05,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-28 13:02:05,318 INFO L87 Difference]: Start difference. First operand 24022 states and 77950 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) [2022-01-28 13:02:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:05,766 INFO L93 Difference]: Finished difference Result 26082 states and 84215 transitions. [2022-01-28 13:02:05,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 13:02:05,766 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 [2022-01-28 13:02:05,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:05,833 INFO L225 Difference]: With dead ends: 26082 [2022-01-28 13:02:05,833 INFO L226 Difference]: Without dead ends: 25766 [2022-01-28 13:02:05,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:05,834 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 158 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:05,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 719 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:05,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25766 states. [2022-01-28 13:02:06,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25766 to 23986. [2022-01-28 13:02:06,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23986 states, 23985 states have (on average 3.2438607462997706) internal successors, (77804), 23985 states have internal predecessors, (77804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:06,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23986 states to 23986 states and 77804 transitions. [2022-01-28 13:02:06,496 INFO L78 Accepts]: Start accepts. Automaton has 23986 states and 77804 transitions. Word has length 134 [2022-01-28 13:02:06,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:06,496 INFO L470 AbstractCegarLoop]: Abstraction has 23986 states and 77804 transitions. [2022-01-28 13:02:06,496 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) [2022-01-28 13:02:06,496 INFO L276 IsEmpty]: Start isEmpty. Operand 23986 states and 77804 transitions. [2022-01-28 13:02:06,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:06,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:06,536 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] [2022-01-28 13:02:06,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-28 13:02:06,537 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:06,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:06,537 INFO L85 PathProgramCache]: Analyzing trace with hash 124516400, now seen corresponding path program 33 times [2022-01-28 13:02:06,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:06,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310590375] [2022-01-28 13:02:06,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:06,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:06,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:06,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:06,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310590375] [2022-01-28 13:02:06,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310590375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:06,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:06,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 13:02:06,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173267568] [2022-01-28 13:02:06,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:06,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 13:02:06,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:06,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 13:02:06,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:02:06,665 INFO L87 Difference]: Start difference. First operand 23986 states and 77804 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) [2022-01-28 13:02:07,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:07,019 INFO L93 Difference]: Finished difference Result 25562 states and 82706 transitions. [2022-01-28 13:02:07,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:02:07,020 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 [2022-01-28 13:02:07,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:07,082 INFO L225 Difference]: With dead ends: 25562 [2022-01-28 13:02:07,082 INFO L226 Difference]: Without dead ends: 25562 [2022-01-28 13:02:07,083 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 [2022-01-28 13:02:07,085 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 269 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:07,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 765 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:07,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25562 states. [2022-01-28 13:02:07,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25562 to 24138. [2022-01-28 13:02:07,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24138 states, 24137 states have (on average 3.240750714670423) internal successors, (78222), 24137 states have internal predecessors, (78222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:07,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24138 states to 24138 states and 78222 transitions. [2022-01-28 13:02:07,645 INFO L78 Accepts]: Start accepts. Automaton has 24138 states and 78222 transitions. Word has length 134 [2022-01-28 13:02:07,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:07,645 INFO L470 AbstractCegarLoop]: Abstraction has 24138 states and 78222 transitions. [2022-01-28 13:02:07,645 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) [2022-01-28 13:02:07,645 INFO L276 IsEmpty]: Start isEmpty. Operand 24138 states and 78222 transitions. [2022-01-28 13:02:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:07,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:07,686 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] [2022-01-28 13:02:07,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-28 13:02:07,686 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:07,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:07,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1304860150, now seen corresponding path program 34 times [2022-01-28 13:02:07,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:07,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101657982] [2022-01-28 13:02:07,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:07,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:07,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:07,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101657982] [2022-01-28 13:02:07,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101657982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:07,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:07,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:07,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672034440] [2022-01-28 13:02:07,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:07,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:07,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:07,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:07,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:07,869 INFO L87 Difference]: Start difference. First operand 24138 states and 78222 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) [2022-01-28 13:02:08,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:08,598 INFO L93 Difference]: Finished difference Result 31036 states and 98650 transitions. [2022-01-28 13:02:08,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-28 13:02:08,598 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 [2022-01-28 13:02:08,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:08,681 INFO L225 Difference]: With dead ends: 31036 [2022-01-28 13:02:08,682 INFO L226 Difference]: Without dead ends: 28000 [2022-01-28 13:02:08,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:02:08,682 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 309 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:08,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 1077 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-28 13:02:08,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28000 states. [2022-01-28 13:02:09,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28000 to 20970. [2022-01-28 13:02:09,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20970 states, 20969 states have (on average 3.1879441079689066) internal successors, (66848), 20969 states have internal predecessors, (66848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20970 states to 20970 states and 66848 transitions. [2022-01-28 13:02:09,104 INFO L78 Accepts]: Start accepts. Automaton has 20970 states and 66848 transitions. Word has length 134 [2022-01-28 13:02:09,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:09,104 INFO L470 AbstractCegarLoop]: Abstraction has 20970 states and 66848 transitions. [2022-01-28 13:02:09,104 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) [2022-01-28 13:02:09,104 INFO L276 IsEmpty]: Start isEmpty. Operand 20970 states and 66848 transitions. [2022-01-28 13:02:09,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:09,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:09,142 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] [2022-01-28 13:02:09,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-28 13:02:09,142 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:09,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:09,142 INFO L85 PathProgramCache]: Analyzing trace with hash -978686880, now seen corresponding path program 35 times [2022-01-28 13:02:09,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:09,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220875819] [2022-01-28 13:02:09,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:09,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:09,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:09,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:09,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220875819] [2022-01-28 13:02:09,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220875819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:09,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:09,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:09,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573076088] [2022-01-28 13:02:09,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:09,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:09,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:09,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:09,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:09,529 INFO L87 Difference]: Start difference. First operand 20970 states and 66848 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) [2022-01-28 13:02:09,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:09,989 INFO L93 Difference]: Finished difference Result 21946 states and 69800 transitions. [2022-01-28 13:02:09,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:02:09,990 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 [2022-01-28 13:02:09,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:10,061 INFO L225 Difference]: With dead ends: 21946 [2022-01-28 13:02:10,061 INFO L226 Difference]: Without dead ends: 21238 [2022-01-28 13:02:10,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-01-28 13:02:10,062 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 230 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:10,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 985 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:02:10,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21238 states. [2022-01-28 13:02:10,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21238 to 20914. [2022-01-28 13:02:10,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20914 states, 20913 states have (on average 3.1862477884569405) internal successors, (66634), 20913 states have internal predecessors, (66634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:10,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20914 states to 20914 states and 66634 transitions. [2022-01-28 13:02:10,660 INFO L78 Accepts]: Start accepts. Automaton has 20914 states and 66634 transitions. Word has length 134 [2022-01-28 13:02:10,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:10,660 INFO L470 AbstractCegarLoop]: Abstraction has 20914 states and 66634 transitions. [2022-01-28 13:02:10,660 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) [2022-01-28 13:02:10,660 INFO L276 IsEmpty]: Start isEmpty. Operand 20914 states and 66634 transitions. [2022-01-28 13:02:10,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:10,694 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:10,694 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] [2022-01-28 13:02:10,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-28 13:02:10,694 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:10,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:10,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1793566766, now seen corresponding path program 36 times [2022-01-28 13:02:10,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:10,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570779628] [2022-01-28 13:02:10,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:10,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:10,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:10,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:10,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570779628] [2022-01-28 13:02:10,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570779628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:10,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:10,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:10,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388119490] [2022-01-28 13:02:10,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:10,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:10,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:10,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:10,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:10,908 INFO L87 Difference]: Start difference. First operand 20914 states and 66634 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) [2022-01-28 13:02:11,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:11,224 INFO L93 Difference]: Finished difference Result 21034 states and 66996 transitions. [2022-01-28 13:02:11,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 13:02:11,224 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 [2022-01-28 13:02:11,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:11,269 INFO L225 Difference]: With dead ends: 21034 [2022-01-28 13:02:11,269 INFO L226 Difference]: Without dead ends: 20624 [2022-01-28 13:02:11,270 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 [2022-01-28 13:02:11,270 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 132 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:11,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 923 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:11,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20624 states. [2022-01-28 13:02:11,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20624 to 20504. [2022-01-28 13:02:11,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20504 states, 20503 states have (on average 3.193337560357021) internal successors, (65473), 20503 states have internal predecessors, (65473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:11,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20504 states to 20504 states and 65473 transitions. [2022-01-28 13:02:11,750 INFO L78 Accepts]: Start accepts. Automaton has 20504 states and 65473 transitions. Word has length 134 [2022-01-28 13:02:11,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:11,750 INFO L470 AbstractCegarLoop]: Abstraction has 20504 states and 65473 transitions. [2022-01-28 13:02:11,751 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) [2022-01-28 13:02:11,751 INFO L276 IsEmpty]: Start isEmpty. Operand 20504 states and 65473 transitions. [2022-01-28 13:02:11,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:11,783 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:11,783 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] [2022-01-28 13:02:11,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-28 13:02:11,784 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:11,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:11,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1792368620, now seen corresponding path program 37 times [2022-01-28 13:02:11,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:11,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271992082] [2022-01-28 13:02:11,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:11,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:11,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:11,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271992082] [2022-01-28 13:02:11,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271992082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:11,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:11,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:11,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656366584] [2022-01-28 13:02:11,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:11,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:11,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:11,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:11,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:11,951 INFO L87 Difference]: Start difference. First operand 20504 states and 65473 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) [2022-01-28 13:02:12,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:12,240 INFO L93 Difference]: Finished difference Result 20216 states and 64565 transitions. [2022-01-28 13:02:12,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:02:12,240 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 [2022-01-28 13:02:12,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:12,283 INFO L225 Difference]: With dead ends: 20216 [2022-01-28 13:02:12,283 INFO L226 Difference]: Without dead ends: 19946 [2022-01-28 13:02:12,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:12,284 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 184 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:12,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 770 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:12,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19946 states. [2022-01-28 13:02:12,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19946 to 19946. [2022-01-28 13:02:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19946 states, 19945 states have (on average 3.201203309100025) internal successors, (63848), 19945 states have internal predecessors, (63848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:12,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19946 states to 19946 states and 63848 transitions. [2022-01-28 13:02:12,773 INFO L78 Accepts]: Start accepts. Automaton has 19946 states and 63848 transitions. Word has length 134 [2022-01-28 13:02:12,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:12,773 INFO L470 AbstractCegarLoop]: Abstraction has 19946 states and 63848 transitions. [2022-01-28 13:02:12,773 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) [2022-01-28 13:02:12,773 INFO L276 IsEmpty]: Start isEmpty. Operand 19946 states and 63848 transitions. [2022-01-28 13:02:12,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:12,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:12,804 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] [2022-01-28 13:02:12,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-28 13:02:12,804 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:12,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:12,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1761556582, now seen corresponding path program 38 times [2022-01-28 13:02:12,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:12,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918211489] [2022-01-28 13:02:12,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:12,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:12,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:12,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:12,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918211489] [2022-01-28 13:02:12,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918211489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:12,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:12,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-28 13:02:12,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554463786] [2022-01-28 13:02:12,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:12,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-28 13:02:12,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:12,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-28 13:02:12,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:12,952 INFO L87 Difference]: Start difference. First operand 19946 states and 63848 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) [2022-01-28 13:02:13,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:13,362 INFO L93 Difference]: Finished difference Result 27238 states and 86896 transitions. [2022-01-28 13:02:13,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:02:13,362 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 [2022-01-28 13:02:13,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:13,427 INFO L225 Difference]: With dead ends: 27238 [2022-01-28 13:02:13,427 INFO L226 Difference]: Without dead ends: 27238 [2022-01-28 13:02:13,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2022-01-28 13:02:13,428 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 571 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:13,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 876 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:13,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27238 states. [2022-01-28 13:02:13,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27238 to 20586. [2022-01-28 13:02:13,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20586 states, 20585 states have (on average 3.1935875637600195) internal successors, (65740), 20585 states have internal predecessors, (65740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:13,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20586 states to 20586 states and 65740 transitions. [2022-01-28 13:02:13,992 INFO L78 Accepts]: Start accepts. Automaton has 20586 states and 65740 transitions. Word has length 134 [2022-01-28 13:02:13,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:13,993 INFO L470 AbstractCegarLoop]: Abstraction has 20586 states and 65740 transitions. [2022-01-28 13:02:13,993 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) [2022-01-28 13:02:13,993 INFO L276 IsEmpty]: Start isEmpty. Operand 20586 states and 65740 transitions. [2022-01-28 13:02:14,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:14,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:14,027 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] [2022-01-28 13:02:14,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-28 13:02:14,027 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:14,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:14,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2137391804, now seen corresponding path program 39 times [2022-01-28 13:02:14,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:14,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738928555] [2022-01-28 13:02:14,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:14,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:14,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:14,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:14,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738928555] [2022-01-28 13:02:14,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738928555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:14,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:14,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-28 13:02:14,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065017402] [2022-01-28 13:02:14,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:14,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-28 13:02:14,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:14,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-28 13:02:14,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:14,172 INFO L87 Difference]: Start difference. First operand 20586 states and 65740 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) [2022-01-28 13:02:14,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:14,843 INFO L93 Difference]: Finished difference Result 26104 states and 82730 transitions. [2022-01-28 13:02:14,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-28 13:02:14,844 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 [2022-01-28 13:02:14,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:14,894 INFO L225 Difference]: With dead ends: 26104 [2022-01-28 13:02:14,894 INFO L226 Difference]: Without dead ends: 24246 [2022-01-28 13:02:14,894 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 [2022-01-28 13:02:14,895 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 591 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:14,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [591 Valid, 1784 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:02:14,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24246 states. [2022-01-28 13:02:15,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24246 to 20116. [2022-01-28 13:02:15,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20116 states, 20115 states have (on average 3.1938354461844396) internal successors, (64244), 20115 states have internal predecessors, (64244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:15,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20116 states to 20116 states and 64244 transitions. [2022-01-28 13:02:15,451 INFO L78 Accepts]: Start accepts. Automaton has 20116 states and 64244 transitions. Word has length 134 [2022-01-28 13:02:15,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:15,451 INFO L470 AbstractCegarLoop]: Abstraction has 20116 states and 64244 transitions. [2022-01-28 13:02:15,451 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) [2022-01-28 13:02:15,451 INFO L276 IsEmpty]: Start isEmpty. Operand 20116 states and 64244 transitions. [2022-01-28 13:02:15,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:15,486 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:15,486 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] [2022-01-28 13:02:15,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-28 13:02:15,486 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:15,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:15,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1726449312, now seen corresponding path program 40 times [2022-01-28 13:02:15,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:15,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225281898] [2022-01-28 13:02:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:15,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:15,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:15,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:15,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225281898] [2022-01-28 13:02:15,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225281898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:15,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:15,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:15,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930448199] [2022-01-28 13:02:15,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:15,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:15,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:15,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:15,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:15,595 INFO L87 Difference]: Start difference. First operand 20116 states and 64244 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) [2022-01-28 13:02:16,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:16,011 INFO L93 Difference]: Finished difference Result 27716 states and 87842 transitions. [2022-01-28 13:02:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:02:16,011 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 [2022-01-28 13:02:16,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:16,071 INFO L225 Difference]: With dead ends: 27716 [2022-01-28 13:02:16,071 INFO L226 Difference]: Without dead ends: 26169 [2022-01-28 13:02:16,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:02:16,072 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 378 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:16,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 906 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:16,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26169 states. [2022-01-28 13:02:16,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26169 to 23324. [2022-01-28 13:02:16,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23324 states, 23323 states have (on average 3.184453114950907) internal successors, (74271), 23323 states have internal predecessors, (74271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:16,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23324 states to 23324 states and 74271 transitions. [2022-01-28 13:02:16,655 INFO L78 Accepts]: Start accepts. Automaton has 23324 states and 74271 transitions. Word has length 134 [2022-01-28 13:02:16,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:16,655 INFO L470 AbstractCegarLoop]: Abstraction has 23324 states and 74271 transitions. [2022-01-28 13:02:16,656 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) [2022-01-28 13:02:16,656 INFO L276 IsEmpty]: Start isEmpty. Operand 23324 states and 74271 transitions. [2022-01-28 13:02:16,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:16,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:16,693 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] [2022-01-28 13:02:16,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-28 13:02:16,694 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:16,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:16,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1363187750, now seen corresponding path program 41 times [2022-01-28 13:02:16,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:16,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796167227] [2022-01-28 13:02:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:16,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:16,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:16,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:16,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796167227] [2022-01-28 13:02:16,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796167227] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:16,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:16,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:02:16,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077816659] [2022-01-28 13:02:16,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:16,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:02:16,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:16,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:02:16,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:16,879 INFO L87 Difference]: Start difference. First operand 23324 states and 74271 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) [2022-01-28 13:02:17,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:17,328 INFO L93 Difference]: Finished difference Result 21469 states and 66658 transitions. [2022-01-28 13:02:17,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-28 13:02:17,328 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 [2022-01-28 13:02:17,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:17,371 INFO L225 Difference]: With dead ends: 21469 [2022-01-28 13:02:17,372 INFO L226 Difference]: Without dead ends: 20705 [2022-01-28 13:02:17,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:02:17,372 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 309 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:17,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 1051 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:02:17,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20705 states. [2022-01-28 13:02:17,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20705 to 19224. [2022-01-28 13:02:17,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19224 states, 19223 states have (on average 3.124798418561099) internal successors, (60068), 19223 states have internal predecessors, (60068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:17,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19224 states to 19224 states and 60068 transitions. [2022-01-28 13:02:17,849 INFO L78 Accepts]: Start accepts. Automaton has 19224 states and 60068 transitions. Word has length 134 [2022-01-28 13:02:17,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:17,849 INFO L470 AbstractCegarLoop]: Abstraction has 19224 states and 60068 transitions. [2022-01-28 13:02:17,849 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) [2022-01-28 13:02:17,849 INFO L276 IsEmpty]: Start isEmpty. Operand 19224 states and 60068 transitions. [2022-01-28 13:02:17,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:17,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:17,880 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] [2022-01-28 13:02:17,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-28 13:02:17,880 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:17,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:17,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1740413454, now seen corresponding path program 42 times [2022-01-28 13:02:17,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:17,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233497261] [2022-01-28 13:02:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:17,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:18,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:18,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233497261] [2022-01-28 13:02:18,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233497261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:18,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:18,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:18,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517408857] [2022-01-28 13:02:18,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:18,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:18,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:18,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:18,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:18,073 INFO L87 Difference]: Start difference. First operand 19224 states and 60068 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) [2022-01-28 13:02:18,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:18,644 INFO L93 Difference]: Finished difference Result 20864 states and 64883 transitions. [2022-01-28 13:02:18,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:02:18,644 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 [2022-01-28 13:02:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:18,876 INFO L225 Difference]: With dead ends: 20864 [2022-01-28 13:02:18,876 INFO L226 Difference]: Without dead ends: 20864 [2022-01-28 13:02:18,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-01-28 13:02:18,876 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 217 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:18,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 1504 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:02:18,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20864 states. [2022-01-28 13:02:19,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20864 to 19000. [2022-01-28 13:02:19,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19000 states, 18999 states have (on average 3.120374756566135) internal successors, (59284), 18999 states have internal predecessors, (59284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19000 states to 19000 states and 59284 transitions. [2022-01-28 13:02:19,191 INFO L78 Accepts]: Start accepts. Automaton has 19000 states and 59284 transitions. Word has length 134 [2022-01-28 13:02:19,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:19,191 INFO L470 AbstractCegarLoop]: Abstraction has 19000 states and 59284 transitions. [2022-01-28 13:02:19,192 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) [2022-01-28 13:02:19,192 INFO L276 IsEmpty]: Start isEmpty. Operand 19000 states and 59284 transitions. [2022-01-28 13:02:19,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:19,230 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:19,230 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] [2022-01-28 13:02:19,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-28 13:02:19,231 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:19,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:19,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1796426514, now seen corresponding path program 43 times [2022-01-28 13:02:19,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:19,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843346606] [2022-01-28 13:02:19,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:19,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:19,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:19,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:19,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843346606] [2022-01-28 13:02:19,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843346606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:19,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:19,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-28 13:02:19,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861087026] [2022-01-28 13:02:19,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:19,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-28 13:02:19,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:19,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-28 13:02:19,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:19,375 INFO L87 Difference]: Start difference. First operand 19000 states and 59284 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) [2022-01-28 13:02:20,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:20,065 INFO L93 Difference]: Finished difference Result 22027 states and 68229 transitions. [2022-01-28 13:02:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-28 13:02:20,065 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 [2022-01-28 13:02:20,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:20,104 INFO L225 Difference]: With dead ends: 22027 [2022-01-28 13:02:20,104 INFO L226 Difference]: Without dead ends: 19588 [2022-01-28 13:02:20,105 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 [2022-01-28 13:02:20,105 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 491 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:20,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [491 Valid, 1814 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:02:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19588 states. [2022-01-28 13:02:20,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19588 to 17303. [2022-01-28 13:02:20,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17303 states, 17302 states have (on average 3.093341810195353) internal successors, (53521), 17302 states have internal predecessors, (53521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:20,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17303 states to 17303 states and 53521 transitions. [2022-01-28 13:02:20,402 INFO L78 Accepts]: Start accepts. Automaton has 17303 states and 53521 transitions. Word has length 134 [2022-01-28 13:02:20,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:20,403 INFO L470 AbstractCegarLoop]: Abstraction has 17303 states and 53521 transitions. [2022-01-28 13:02:20,403 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) [2022-01-28 13:02:20,403 INFO L276 IsEmpty]: Start isEmpty. Operand 17303 states and 53521 transitions. [2022-01-28 13:02:20,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:20,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:20,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:02:20,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-28 13:02:20,439 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:20,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:20,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1817270418, now seen corresponding path program 44 times [2022-01-28 13:02:20,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:20,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288522165] [2022-01-28 13:02:20,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:20,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:20,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:20,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:20,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288522165] [2022-01-28 13:02:20,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288522165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:20,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:20,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-28 13:02:20,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795481682] [2022-01-28 13:02:20,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:20,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-28 13:02:20,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:20,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-28 13:02:20,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:20,584 INFO L87 Difference]: Start difference. First operand 17303 states and 53521 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) [2022-01-28 13:02:21,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:21,199 INFO L93 Difference]: Finished difference Result 20710 states and 63755 transitions. [2022-01-28 13:02:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-28 13:02:21,199 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 [2022-01-28 13:02:21,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:21,235 INFO L225 Difference]: With dead ends: 20710 [2022-01-28 13:02:21,235 INFO L226 Difference]: Without dead ends: 17931 [2022-01-28 13:02:21,236 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 [2022-01-28 13:02:21,236 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 478 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:21,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 1797 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:02:21,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17931 states. [2022-01-28 13:02:21,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17931 to 15499. [2022-01-28 13:02:21,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15499 states, 15498 states have (on average 3.0700735578784357) internal successors, (47580), 15498 states have internal predecessors, (47580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:21,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15499 states to 15499 states and 47580 transitions. [2022-01-28 13:02:21,518 INFO L78 Accepts]: Start accepts. Automaton has 15499 states and 47580 transitions. Word has length 134 [2022-01-28 13:02:21,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:21,518 INFO L470 AbstractCegarLoop]: Abstraction has 15499 states and 47580 transitions. [2022-01-28 13:02:21,518 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) [2022-01-28 13:02:21,518 INFO L276 IsEmpty]: Start isEmpty. Operand 15499 states and 47580 transitions. [2022-01-28 13:02:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:21,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:21,544 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] [2022-01-28 13:02:21,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-28 13:02:21,544 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:21,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1277466228, now seen corresponding path program 45 times [2022-01-28 13:02:21,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:21,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87629937] [2022-01-28 13:02:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:21,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:21,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:21,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:21,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87629937] [2022-01-28 13:02:21,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87629937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:21,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:21,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:02:21,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239751543] [2022-01-28 13:02:21,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:21,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:02:21,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:21,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:02:21,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:21,702 INFO L87 Difference]: Start difference. First operand 15499 states and 47580 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) [2022-01-28 13:02:22,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:22,164 INFO L93 Difference]: Finished difference Result 16191 states and 49607 transitions. [2022-01-28 13:02:22,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 13:02:22,165 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 [2022-01-28 13:02:22,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:22,204 INFO L225 Difference]: With dead ends: 16191 [2022-01-28 13:02:22,205 INFO L226 Difference]: Without dead ends: 15579 [2022-01-28 13:02:22,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:22,207 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 220 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:22,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 661 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:22,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15579 states. [2022-01-28 13:02:22,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15579 to 15503. [2022-01-28 13:02:22,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15503 states, 15502 states have (on average 3.0684427815765707) internal successors, (47567), 15502 states have internal predecessors, (47567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:22,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15503 states to 15503 states and 47567 transitions. [2022-01-28 13:02:22,515 INFO L78 Accepts]: Start accepts. Automaton has 15503 states and 47567 transitions. Word has length 134 [2022-01-28 13:02:22,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:22,515 INFO L470 AbstractCegarLoop]: Abstraction has 15503 states and 47567 transitions. [2022-01-28 13:02:22,515 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) [2022-01-28 13:02:22,515 INFO L276 IsEmpty]: Start isEmpty. Operand 15503 states and 47567 transitions. [2022-01-28 13:02:22,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:22,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:22,541 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] [2022-01-28 13:02:22,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-28 13:02:22,542 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:22,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:22,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1618028618, now seen corresponding path program 46 times [2022-01-28 13:02:22,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:22,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485372636] [2022-01-28 13:02:22,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:22,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:22,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:22,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:22,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485372636] [2022-01-28 13:02:22,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485372636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:22,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:22,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:22,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062451825] [2022-01-28 13:02:22,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:22,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:22,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:22,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:22,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:22,710 INFO L87 Difference]: Start difference. First operand 15503 states and 47567 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) [2022-01-28 13:02:23,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:23,212 INFO L93 Difference]: Finished difference Result 17195 states and 52605 transitions. [2022-01-28 13:02:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:02:23,213 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 [2022-01-28 13:02:23,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:23,244 INFO L225 Difference]: With dead ends: 17195 [2022-01-28 13:02:23,244 INFO L226 Difference]: Without dead ends: 16163 [2022-01-28 13:02:23,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:02:23,244 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 216 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:23,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 1340 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:02:23,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16163 states. [2022-01-28 13:02:23,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16163 to 15459. [2022-01-28 13:02:23,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15459 states, 15458 states have (on average 3.068055375857161) internal successors, (47426), 15458 states have internal predecessors, (47426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:23,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15459 states to 15459 states and 47426 transitions. [2022-01-28 13:02:23,489 INFO L78 Accepts]: Start accepts. Automaton has 15459 states and 47426 transitions. Word has length 134 [2022-01-28 13:02:23,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:23,489 INFO L470 AbstractCegarLoop]: Abstraction has 15459 states and 47426 transitions. [2022-01-28 13:02:23,489 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) [2022-01-28 13:02:23,489 INFO L276 IsEmpty]: Start isEmpty. Operand 15459 states and 47426 transitions. [2022-01-28 13:02:23,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:23,515 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:23,515 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] [2022-01-28 13:02:23,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-28 13:02:23,515 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:23,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:23,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1215762510, now seen corresponding path program 47 times [2022-01-28 13:02:23,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:23,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433032629] [2022-01-28 13:02:23,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:23,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:23,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:23,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433032629] [2022-01-28 13:02:23,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433032629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:23,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:23,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:23,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829302410] [2022-01-28 13:02:23,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:23,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:23,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:23,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:23,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:23,698 INFO L87 Difference]: Start difference. First operand 15459 states and 47426 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) [2022-01-28 13:02:24,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:24,041 INFO L93 Difference]: Finished difference Result 17027 states and 52115 transitions. [2022-01-28 13:02:24,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:02:24,042 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 [2022-01-28 13:02:24,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:24,077 INFO L225 Difference]: With dead ends: 17027 [2022-01-28 13:02:24,077 INFO L226 Difference]: Without dead ends: 16055 [2022-01-28 13:02:24,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:02:24,078 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 272 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:24,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 917 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:24,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16055 states. [2022-01-28 13:02:24,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16055 to 15303. [2022-01-28 13:02:24,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15303 states, 15302 states have (on average 3.067638217226506) internal successors, (46941), 15302 states have internal predecessors, (46941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:24,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15303 states to 15303 states and 46941 transitions. [2022-01-28 13:02:24,427 INFO L78 Accepts]: Start accepts. Automaton has 15303 states and 46941 transitions. Word has length 134 [2022-01-28 13:02:24,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:24,427 INFO L470 AbstractCegarLoop]: Abstraction has 15303 states and 46941 transitions. [2022-01-28 13:02:24,427 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) [2022-01-28 13:02:24,428 INFO L276 IsEmpty]: Start isEmpty. Operand 15303 states and 46941 transitions. [2022-01-28 13:02:24,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:24,452 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:24,453 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] [2022-01-28 13:02:24,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-28 13:02:24,453 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:24,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:24,453 INFO L85 PathProgramCache]: Analyzing trace with hash -483912430, now seen corresponding path program 48 times [2022-01-28 13:02:24,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:24,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547742092] [2022-01-28 13:02:24,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:24,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:24,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:24,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547742092] [2022-01-28 13:02:24,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547742092] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:24,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:24,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:02:24,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499734011] [2022-01-28 13:02:24,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:24,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:02:24,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:24,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:02:24,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:24,618 INFO L87 Difference]: Start difference. First operand 15303 states and 46941 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) [2022-01-28 13:02:24,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:24,901 INFO L93 Difference]: Finished difference Result 16983 states and 51985 transitions. [2022-01-28 13:02:24,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 13:02:24,901 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 [2022-01-28 13:02:24,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:24,936 INFO L225 Difference]: With dead ends: 16983 [2022-01-28 13:02:24,936 INFO L226 Difference]: Without dead ends: 15967 [2022-01-28 13:02:24,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:24,937 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 177 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:24,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 840 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:24,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15967 states. [2022-01-28 13:02:25,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15967 to 15299. [2022-01-28 13:02:25,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15299 states, 15298 states have (on average 3.0658909661393645) internal successors, (46902), 15298 states have internal predecessors, (46902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:25,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15299 states to 15299 states and 46902 transitions. [2022-01-28 13:02:25,300 INFO L78 Accepts]: Start accepts. Automaton has 15299 states and 46902 transitions. Word has length 134 [2022-01-28 13:02:25,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:25,300 INFO L470 AbstractCegarLoop]: Abstraction has 15299 states and 46902 transitions. [2022-01-28 13:02:25,300 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) [2022-01-28 13:02:25,300 INFO L276 IsEmpty]: Start isEmpty. Operand 15299 states and 46902 transitions. [2022-01-28 13:02:25,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:25,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:25,325 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] [2022-01-28 13:02:25,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-28 13:02:25,325 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:25,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:25,326 INFO L85 PathProgramCache]: Analyzing trace with hash -453718160, now seen corresponding path program 49 times [2022-01-28 13:02:25,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:25,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427212448] [2022-01-28 13:02:25,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:25,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:25,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:25,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:25,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427212448] [2022-01-28 13:02:25,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427212448] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:25,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:25,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:25,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041136914] [2022-01-28 13:02:25,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:25,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:25,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:25,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:25,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:25,536 INFO L87 Difference]: Start difference. First operand 15299 states and 46902 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) [2022-01-28 13:02:25,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:25,942 INFO L93 Difference]: Finished difference Result 17123 states and 52399 transitions. [2022-01-28 13:02:25,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:02:25,942 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 [2022-01-28 13:02:25,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:25,979 INFO L225 Difference]: With dead ends: 17123 [2022-01-28 13:02:25,979 INFO L226 Difference]: Without dead ends: 17123 [2022-01-28 13:02:25,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:02:25,979 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 200 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:25,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 1107 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:02:26,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17123 states. [2022-01-28 13:02:26,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17123 to 15171. [2022-01-28 13:02:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15171 states, 15170 states have (on average 3.067501647989453) internal successors, (46534), 15170 states have internal predecessors, (46534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:26,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15171 states to 15171 states and 46534 transitions. [2022-01-28 13:02:26,350 INFO L78 Accepts]: Start accepts. Automaton has 15171 states and 46534 transitions. Word has length 134 [2022-01-28 13:02:26,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:26,350 INFO L470 AbstractCegarLoop]: Abstraction has 15171 states and 46534 transitions. [2022-01-28 13:02:26,350 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) [2022-01-28 13:02:26,350 INFO L276 IsEmpty]: Start isEmpty. Operand 15171 states and 46534 transitions. [2022-01-28 13:02:26,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:26,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:26,374 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] [2022-01-28 13:02:26,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-28 13:02:26,374 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:26,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:26,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1121340530, now seen corresponding path program 50 times [2022-01-28 13:02:26,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:26,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253826815] [2022-01-28 13:02:26,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:26,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:26,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:26,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:26,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253826815] [2022-01-28 13:02:26,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253826815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:26,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:26,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:02:26,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625046308] [2022-01-28 13:02:26,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:26,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:02:26,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:26,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:02:26,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:26,573 INFO L87 Difference]: Start difference. First operand 15171 states and 46534 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) [2022-01-28 13:02:26,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:26,813 INFO L93 Difference]: Finished difference Result 16203 states and 49624 transitions. [2022-01-28 13:02:26,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:02:26,813 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 [2022-01-28 13:02:26,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:26,845 INFO L225 Difference]: With dead ends: 16203 [2022-01-28 13:02:26,845 INFO L226 Difference]: Without dead ends: 14805 [2022-01-28 13:02:26,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:26,846 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 162 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:26,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 786 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:26,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14805 states. [2022-01-28 13:02:27,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14805 to 14661. [2022-01-28 13:02:27,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14661 states, 14660 states have (on average 3.0489768076398365) internal successors, (44698), 14660 states have internal predecessors, (44698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14661 states to 14661 states and 44698 transitions. [2022-01-28 13:02:27,208 INFO L78 Accepts]: Start accepts. Automaton has 14661 states and 44698 transitions. Word has length 134 [2022-01-28 13:02:27,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:27,209 INFO L470 AbstractCegarLoop]: Abstraction has 14661 states and 44698 transitions. [2022-01-28 13:02:27,209 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) [2022-01-28 13:02:27,209 INFO L276 IsEmpty]: Start isEmpty. Operand 14661 states and 44698 transitions. [2022-01-28 13:02:27,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:27,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:27,232 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] [2022-01-28 13:02:27,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-28 13:02:27,232 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:27,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:27,232 INFO L85 PathProgramCache]: Analyzing trace with hash -818074086, now seen corresponding path program 51 times [2022-01-28 13:02:27,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:27,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818892959] [2022-01-28 13:02:27,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:27,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:27,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:27,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:27,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818892959] [2022-01-28 13:02:27,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818892959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:27,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:27,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:02:27,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120664093] [2022-01-28 13:02:27,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:27,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:02:27,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:27,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:02:27,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:27,419 INFO L87 Difference]: Start difference. First operand 14661 states and 44698 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) [2022-01-28 13:02:27,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:27,740 INFO L93 Difference]: Finished difference Result 15959 states and 48567 transitions. [2022-01-28 13:02:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 13:02:27,740 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 [2022-01-28 13:02:27,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:27,774 INFO L225 Difference]: With dead ends: 15959 [2022-01-28 13:02:27,774 INFO L226 Difference]: Without dead ends: 15387 [2022-01-28 13:02:27,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:27,775 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 238 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:27,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1004 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:27,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15387 states. [2022-01-28 13:02:27,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15387 to 14613. [2022-01-28 13:02:28,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14613 states, 14612 states have (on average 3.0425677525321655) internal successors, (44458), 14612 states have internal predecessors, (44458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:28,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14613 states to 14613 states and 44458 transitions. [2022-01-28 13:02:28,219 INFO L78 Accepts]: Start accepts. Automaton has 14613 states and 44458 transitions. Word has length 134 [2022-01-28 13:02:28,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:28,219 INFO L470 AbstractCegarLoop]: Abstraction has 14613 states and 44458 transitions. [2022-01-28 13:02:28,219 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) [2022-01-28 13:02:28,219 INFO L276 IsEmpty]: Start isEmpty. Operand 14613 states and 44458 transitions. [2022-01-28 13:02:28,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:28,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:28,242 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] [2022-01-28 13:02:28,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-28 13:02:28,242 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:28,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:28,243 INFO L85 PathProgramCache]: Analyzing trace with hash 511737310, now seen corresponding path program 52 times [2022-01-28 13:02:28,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:28,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205584012] [2022-01-28 13:02:28,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:28,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:28,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:28,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:28,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205584012] [2022-01-28 13:02:28,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205584012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:28,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:28,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:28,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991867038] [2022-01-28 13:02:28,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:28,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:28,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:28,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:28,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:28,437 INFO L87 Difference]: Start difference. First operand 14613 states and 44458 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) [2022-01-28 13:02:29,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:29,017 INFO L93 Difference]: Finished difference Result 15323 states and 46070 transitions. [2022-01-28 13:02:29,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-28 13:02:29,018 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 [2022-01-28 13:02:29,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:29,047 INFO L225 Difference]: With dead ends: 15323 [2022-01-28 13:02:29,047 INFO L226 Difference]: Without dead ends: 13809 [2022-01-28 13:02:29,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-01-28 13:02:29,048 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 266 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:29,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 1552 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:02:29,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13809 states. [2022-01-28 13:02:29,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13809 to 12903. [2022-01-28 13:02:29,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12903 states, 12902 states have (on average 3.016431560998295) internal successors, (38918), 12902 states have internal predecessors, (38918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12903 states to 12903 states and 38918 transitions. [2022-01-28 13:02:29,278 INFO L78 Accepts]: Start accepts. Automaton has 12903 states and 38918 transitions. Word has length 134 [2022-01-28 13:02:29,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:29,278 INFO L470 AbstractCegarLoop]: Abstraction has 12903 states and 38918 transitions. [2022-01-28 13:02:29,278 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) [2022-01-28 13:02:29,278 INFO L276 IsEmpty]: Start isEmpty. Operand 12903 states and 38918 transitions. [2022-01-28 13:02:29,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:29,300 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:29,300 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] [2022-01-28 13:02:29,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-28 13:02:29,300 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:29,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:29,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1843283084, now seen corresponding path program 53 times [2022-01-28 13:02:29,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:29,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800538717] [2022-01-28 13:02:29,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:29,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:29,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:29,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:29,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800538717] [2022-01-28 13:02:29,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800538717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:29,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:29,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:02:29,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78435034] [2022-01-28 13:02:29,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:29,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:02:29,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:29,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:02:29,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:29,439 INFO L87 Difference]: Start difference. First operand 12903 states and 38918 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) [2022-01-28 13:02:29,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:29,980 INFO L93 Difference]: Finished difference Result 16942 states and 51106 transitions. [2022-01-28 13:02:29,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-28 13:02:29,981 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 [2022-01-28 13:02:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:30,024 INFO L225 Difference]: With dead ends: 16942 [2022-01-28 13:02:30,024 INFO L226 Difference]: Without dead ends: 15455 [2022-01-28 13:02:30,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-01-28 13:02:30,025 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 330 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:30,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 1216 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:02:30,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15455 states. [2022-01-28 13:02:30,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15455 to 12455. [2022-01-28 13:02:30,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12455 states, 12454 states have (on average 3.0154167335795727) internal successors, (37554), 12454 states have internal predecessors, (37554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12455 states to 12455 states and 37554 transitions. [2022-01-28 13:02:30,262 INFO L78 Accepts]: Start accepts. Automaton has 12455 states and 37554 transitions. Word has length 134 [2022-01-28 13:02:30,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:30,262 INFO L470 AbstractCegarLoop]: Abstraction has 12455 states and 37554 transitions. [2022-01-28 13:02:30,262 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) [2022-01-28 13:02:30,262 INFO L276 IsEmpty]: Start isEmpty. Operand 12455 states and 37554 transitions. [2022-01-28 13:02:30,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:30,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:30,283 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] [2022-01-28 13:02:30,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-28 13:02:30,283 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:30,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:30,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1511839170, now seen corresponding path program 54 times [2022-01-28 13:02:30,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:30,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299916147] [2022-01-28 13:02:30,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:30,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:30,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:30,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:30,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299916147] [2022-01-28 13:02:30,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299916147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:30,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:30,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 13:02:30,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573279156] [2022-01-28 13:02:30,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:30,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 13:02:30,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:30,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 13:02:30,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:02:30,361 INFO L87 Difference]: Start difference. First operand 12455 states and 37554 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) [2022-01-28 13:02:30,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:30,586 INFO L93 Difference]: Finished difference Result 11990 states and 35928 transitions. [2022-01-28 13:02:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:02:30,587 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 [2022-01-28 13:02:30,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:30,606 INFO L225 Difference]: With dead ends: 11990 [2022-01-28 13:02:30,607 INFO L226 Difference]: Without dead ends: 8409 [2022-01-28 13:02:30,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:30,607 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 435 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:30,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [435 Valid, 554 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:02:30,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8409 states. [2022-01-28 13:02:30,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8409 to 8318. [2022-01-28 13:02:30,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8318 states, 8317 states have (on average 2.972105326439822) internal successors, (24719), 8317 states have internal predecessors, (24719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:30,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8318 states to 8318 states and 24719 transitions. [2022-01-28 13:02:30,881 INFO L78 Accepts]: Start accepts. Automaton has 8318 states and 24719 transitions. Word has length 134 [2022-01-28 13:02:30,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:30,881 INFO L470 AbstractCegarLoop]: Abstraction has 8318 states and 24719 transitions. [2022-01-28 13:02:30,881 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) [2022-01-28 13:02:30,881 INFO L276 IsEmpty]: Start isEmpty. Operand 8318 states and 24719 transitions. [2022-01-28 13:02:30,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:30,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:30,894 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] [2022-01-28 13:02:30,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-28 13:02:30,894 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:30,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:30,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1885099948, now seen corresponding path program 55 times [2022-01-28 13:02:30,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:30,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748755268] [2022-01-28 13:02:30,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:30,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:31,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:31,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:31,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748755268] [2022-01-28 13:02:31,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748755268] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:31,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:31,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:31,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832633039] [2022-01-28 13:02:31,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:31,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:31,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:31,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:31,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:31,071 INFO L87 Difference]: Start difference. First operand 8318 states and 24719 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) [2022-01-28 13:02:31,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:31,306 INFO L93 Difference]: Finished difference Result 9319 states and 27671 transitions. [2022-01-28 13:02:31,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:02:31,307 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 [2022-01-28 13:02:31,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:31,323 INFO L225 Difference]: With dead ends: 9319 [2022-01-28 13:02:31,323 INFO L226 Difference]: Without dead ends: 8434 [2022-01-28 13:02:31,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:31,324 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 139 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:31,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 866 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8434 states. [2022-01-28 13:02:31,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8434 to 8382. [2022-01-28 13:02:31,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8382 states, 8381 states have (on average 2.9628922562939985) internal successors, (24832), 8381 states have internal predecessors, (24832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:31,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8382 states to 8382 states and 24832 transitions. [2022-01-28 13:02:31,466 INFO L78 Accepts]: Start accepts. Automaton has 8382 states and 24832 transitions. Word has length 134 [2022-01-28 13:02:31,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:31,467 INFO L470 AbstractCegarLoop]: Abstraction has 8382 states and 24832 transitions. [2022-01-28 13:02:31,467 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) [2022-01-28 13:02:31,467 INFO L276 IsEmpty]: Start isEmpty. Operand 8382 states and 24832 transitions. [2022-01-28 13:02:31,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:31,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:31,481 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] [2022-01-28 13:02:31,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-28 13:02:31,481 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:31,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:31,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1638115794, now seen corresponding path program 56 times [2022-01-28 13:02:31,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:31,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853374659] [2022-01-28 13:02:31,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:31,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:31,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:31,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:31,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853374659] [2022-01-28 13:02:31,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853374659] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:31,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:31,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:31,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95959952] [2022-01-28 13:02:31,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:31,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:31,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:31,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:31,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:31,661 INFO L87 Difference]: Start difference. First operand 8382 states and 24832 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) [2022-01-28 13:02:31,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:31,992 INFO L93 Difference]: Finished difference Result 11271 states and 33604 transitions. [2022-01-28 13:02:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:02:31,992 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 [2022-01-28 13:02:31,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:32,009 INFO L225 Difference]: With dead ends: 11271 [2022-01-28 13:02:32,009 INFO L226 Difference]: Without dead ends: 10176 [2022-01-28 13:02:32,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:02:32,010 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 339 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:32,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 1006 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:02:32,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10176 states. [2022-01-28 13:02:32,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10176 to 8032. [2022-01-28 13:02:32,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8032 states, 8031 states have (on average 2.9574150168098616) internal successors, (23751), 8031 states have internal predecessors, (23751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:32,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8032 states to 8032 states and 23751 transitions. [2022-01-28 13:02:32,135 INFO L78 Accepts]: Start accepts. Automaton has 8032 states and 23751 transitions. Word has length 134 [2022-01-28 13:02:32,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:32,135 INFO L470 AbstractCegarLoop]: Abstraction has 8032 states and 23751 transitions. [2022-01-28 13:02:32,135 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) [2022-01-28 13:02:32,135 INFO L276 IsEmpty]: Start isEmpty. Operand 8032 states and 23751 transitions. [2022-01-28 13:02:32,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:32,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:32,147 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] [2022-01-28 13:02:32,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-28 13:02:32,147 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:32,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:32,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1784824628, now seen corresponding path program 57 times [2022-01-28 13:02:32,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:32,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157908507] [2022-01-28 13:02:32,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:32,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:32,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:32,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:32,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157908507] [2022-01-28 13:02:32,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157908507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:32,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:32,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:32,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257533586] [2022-01-28 13:02:32,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:32,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:32,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:32,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:32,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:32,314 INFO L87 Difference]: Start difference. First operand 8032 states and 23751 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) [2022-01-28 13:02:32,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:32,563 INFO L93 Difference]: Finished difference Result 8281 states and 24218 transitions. [2022-01-28 13:02:32,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 13:02:32,563 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 [2022-01-28 13:02:32,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:32,576 INFO L225 Difference]: With dead ends: 8281 [2022-01-28 13:02:32,576 INFO L226 Difference]: Without dead ends: 7357 [2022-01-28 13:02:32,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:32,577 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 178 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:32,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 937 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:32,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7357 states. [2022-01-28 13:02:32,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7357 to 7109. [2022-01-28 13:02:32,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7109 states, 7108 states have (on average 2.9433033202025887) internal successors, (20921), 7108 states have internal predecessors, (20921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:32,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7109 states to 7109 states and 20921 transitions. [2022-01-28 13:02:32,679 INFO L78 Accepts]: Start accepts. Automaton has 7109 states and 20921 transitions. Word has length 134 [2022-01-28 13:02:32,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:32,679 INFO L470 AbstractCegarLoop]: Abstraction has 7109 states and 20921 transitions. [2022-01-28 13:02:32,679 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) [2022-01-28 13:02:32,679 INFO L276 IsEmpty]: Start isEmpty. Operand 7109 states and 20921 transitions. [2022-01-28 13:02:32,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:32,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:32,689 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] [2022-01-28 13:02:32,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-28 13:02:32,690 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:32,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:32,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1860242304, now seen corresponding path program 58 times [2022-01-28 13:02:32,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:32,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270845546] [2022-01-28 13:02:32,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:32,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:32,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:32,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270845546] [2022-01-28 13:02:32,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270845546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:32,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:32,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:32,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094371390] [2022-01-28 13:02:32,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:32,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:32,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:32,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:32,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:32,859 INFO L87 Difference]: Start difference. First operand 7109 states and 20921 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) [2022-01-28 13:02:33,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:33,156 INFO L93 Difference]: Finished difference Result 8379 states and 24739 transitions. [2022-01-28 13:02:33,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 13:02:33,156 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 [2022-01-28 13:02:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:33,170 INFO L225 Difference]: With dead ends: 8379 [2022-01-28 13:02:33,170 INFO L226 Difference]: Without dead ends: 7633 [2022-01-28 13:02:33,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:02:33,170 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 206 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:33,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 1054 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:33,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2022-01-28 13:02:33,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 7318. [2022-01-28 13:02:33,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7318 states, 7317 states have (on average 2.944239442394424) internal successors, (21543), 7317 states have internal predecessors, (21543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:33,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7318 states to 7318 states and 21543 transitions. [2022-01-28 13:02:33,301 INFO L78 Accepts]: Start accepts. Automaton has 7318 states and 21543 transitions. Word has length 134 [2022-01-28 13:02:33,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:33,301 INFO L470 AbstractCegarLoop]: Abstraction has 7318 states and 21543 transitions. [2022-01-28 13:02:33,301 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) [2022-01-28 13:02:33,301 INFO L276 IsEmpty]: Start isEmpty. Operand 7318 states and 21543 transitions. [2022-01-28 13:02:33,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:33,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:33,312 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] [2022-01-28 13:02:33,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-28 13:02:33,312 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:33,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:33,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1088490750, now seen corresponding path program 59 times [2022-01-28 13:02:33,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:33,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758289918] [2022-01-28 13:02:33,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:33,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:33,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:33,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758289918] [2022-01-28 13:02:33,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758289918] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:33,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:33,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:33,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115178962] [2022-01-28 13:02:33,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:33,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:33,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:33,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:33,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:33,525 INFO L87 Difference]: Start difference. First operand 7318 states and 21543 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) [2022-01-28 13:02:33,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:33,749 INFO L93 Difference]: Finished difference Result 7318 states and 21483 transitions. [2022-01-28 13:02:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 13:02:33,749 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 [2022-01-28 13:02:33,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:33,760 INFO L225 Difference]: With dead ends: 7318 [2022-01-28 13:02:33,761 INFO L226 Difference]: Without dead ends: 6639 [2022-01-28 13:02:33,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:33,761 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 137 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:33,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 947 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:33,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6639 states. [2022-01-28 13:02:33,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6639 to 6639. [2022-01-28 13:02:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6639 states, 6638 states have (on average 2.9435070804459174) internal successors, (19539), 6638 states have internal predecessors, (19539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:33,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6639 states to 6639 states and 19539 transitions. [2022-01-28 13:02:33,854 INFO L78 Accepts]: Start accepts. Automaton has 6639 states and 19539 transitions. Word has length 134 [2022-01-28 13:02:33,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:33,854 INFO L470 AbstractCegarLoop]: Abstraction has 6639 states and 19539 transitions. [2022-01-28 13:02:33,855 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) [2022-01-28 13:02:33,855 INFO L276 IsEmpty]: Start isEmpty. Operand 6639 states and 19539 transitions. [2022-01-28 13:02:33,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:33,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:33,864 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] [2022-01-28 13:02:33,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-28 13:02:33,864 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:33,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:33,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1448889988, now seen corresponding path program 60 times [2022-01-28 13:02:33,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:33,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710319898] [2022-01-28 13:02:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:33,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:33,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:33,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710319898] [2022-01-28 13:02:33,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710319898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:33,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:33,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:02:33,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161536138] [2022-01-28 13:02:33,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:33,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:02:33,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:33,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:02:33,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:33,998 INFO L87 Difference]: Start difference. First operand 6639 states and 19539 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) [2022-01-28 13:02:34,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:34,336 INFO L93 Difference]: Finished difference Result 9180 states and 27073 transitions. [2022-01-28 13:02:34,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:02:34,336 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 [2022-01-28 13:02:34,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:34,352 INFO L225 Difference]: With dead ends: 9180 [2022-01-28 13:02:34,352 INFO L226 Difference]: Without dead ends: 8316 [2022-01-28 13:02:34,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:02:34,352 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 658 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:34,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [658 Valid, 987 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:34,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8316 states. [2022-01-28 13:02:34,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8316 to 6003. [2022-01-28 13:02:34,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 6002 states have (on average 2.928857047650783) internal successors, (17579), 6002 states have internal predecessors, (17579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:34,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 17579 transitions. [2022-01-28 13:02:34,450 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 17579 transitions. Word has length 134 [2022-01-28 13:02:34,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:34,451 INFO L470 AbstractCegarLoop]: Abstraction has 6003 states and 17579 transitions. [2022-01-28 13:02:34,451 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) [2022-01-28 13:02:34,451 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 17579 transitions. [2022-01-28 13:02:34,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:34,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:34,459 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] [2022-01-28 13:02:34,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-28 13:02:34,459 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:34,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:34,459 INFO L85 PathProgramCache]: Analyzing trace with hash 964872656, now seen corresponding path program 61 times [2022-01-28 13:02:34,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:34,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632099522] [2022-01-28 13:02:34,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:34,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:34,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:34,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:34,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632099522] [2022-01-28 13:02:34,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632099522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:34,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:34,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:34,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334975890] [2022-01-28 13:02:34,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:34,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:34,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:34,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:34,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:34,697 INFO L87 Difference]: Start difference. First operand 6003 states and 17579 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) [2022-01-28 13:02:34,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:34,974 INFO L93 Difference]: Finished difference Result 5778 states and 16829 transitions. [2022-01-28 13:02:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:02:34,974 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 [2022-01-28 13:02:34,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:34,982 INFO L225 Difference]: With dead ends: 5778 [2022-01-28 13:02:34,982 INFO L226 Difference]: Without dead ends: 4833 [2022-01-28 13:02:34,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:02:34,982 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 144 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:34,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 967 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:34,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2022-01-28 13:02:35,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4833. [2022-01-28 13:02:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4833 states, 4832 states have (on average 2.939155629139073) internal successors, (14202), 4832 states have internal predecessors, (14202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:35,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4833 states to 4833 states and 14202 transitions. [2022-01-28 13:02:35,046 INFO L78 Accepts]: Start accepts. Automaton has 4833 states and 14202 transitions. Word has length 134 [2022-01-28 13:02:35,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:35,046 INFO L470 AbstractCegarLoop]: Abstraction has 4833 states and 14202 transitions. [2022-01-28 13:02:35,046 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) [2022-01-28 13:02:35,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4833 states and 14202 transitions. [2022-01-28 13:02:35,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:35,052 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:35,052 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] [2022-01-28 13:02:35,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-28 13:02:35,053 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:35,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:35,053 INFO L85 PathProgramCache]: Analyzing trace with hash 820531348, now seen corresponding path program 62 times [2022-01-28 13:02:35,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:35,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513044767] [2022-01-28 13:02:35,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:35,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:35,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:35,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:35,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513044767] [2022-01-28 13:02:35,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513044767] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:35,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:35,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 13:02:35,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053282836] [2022-01-28 13:02:35,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:35,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 13:02:35,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:35,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 13:02:35,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:02:35,151 INFO L87 Difference]: Start difference. First operand 4833 states and 14202 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) [2022-01-28 13:02:35,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:35,313 INFO L93 Difference]: Finished difference Result 6249 states and 18560 transitions. [2022-01-28 13:02:35,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:02:35,313 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 [2022-01-28 13:02:35,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:35,322 INFO L225 Difference]: With dead ends: 6249 [2022-01-28 13:02:35,322 INFO L226 Difference]: Without dead ends: 5485 [2022-01-28 13:02:35,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:35,322 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 176 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:35,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 553 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:02:35,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5485 states. [2022-01-28 13:02:35,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5485 to 4645. [2022-01-28 13:02:35,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4645 states, 4644 states have (on average 2.9261412575366066) internal successors, (13589), 4644 states have internal predecessors, (13589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:35,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4645 states to 4645 states and 13589 transitions. [2022-01-28 13:02:35,384 INFO L78 Accepts]: Start accepts. Automaton has 4645 states and 13589 transitions. Word has length 134 [2022-01-28 13:02:35,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:35,384 INFO L470 AbstractCegarLoop]: Abstraction has 4645 states and 13589 transitions. [2022-01-28 13:02:35,384 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) [2022-01-28 13:02:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 4645 states and 13589 transitions. [2022-01-28 13:02:35,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:35,389 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:35,390 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] [2022-01-28 13:02:35,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-28 13:02:35,390 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:35,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:35,390 INFO L85 PathProgramCache]: Analyzing trace with hash 798129936, now seen corresponding path program 63 times [2022-01-28 13:02:35,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:35,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916183332] [2022-01-28 13:02:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:35,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:35,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:35,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:35,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916183332] [2022-01-28 13:02:35,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916183332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:35,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:35,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-28 13:02:35,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004078561] [2022-01-28 13:02:35,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:35,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-28 13:02:35,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:35,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-28 13:02:35,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:02:35,625 INFO L87 Difference]: Start difference. First operand 4645 states and 13589 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) [2022-01-28 13:02:35,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:35,922 INFO L93 Difference]: Finished difference Result 5173 states and 15153 transitions. [2022-01-28 13:02:35,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 13:02:35,922 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 [2022-01-28 13:02:35,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:35,930 INFO L225 Difference]: With dead ends: 5173 [2022-01-28 13:02:35,930 INFO L226 Difference]: Without dead ends: 4465 [2022-01-28 13:02:35,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:02:35,931 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 190 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:35,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 1333 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:35,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4465 states. [2022-01-28 13:02:35,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4465 to 4417. [2022-01-28 13:02:35,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4416 states have (on average 2.9365942028985508) internal successors, (12968), 4416 states have internal predecessors, (12968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:35,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 12968 transitions. [2022-01-28 13:02:35,996 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 12968 transitions. Word has length 134 [2022-01-28 13:02:35,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:35,997 INFO L470 AbstractCegarLoop]: Abstraction has 4417 states and 12968 transitions. [2022-01-28 13:02:35,997 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) [2022-01-28 13:02:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 12968 transitions. [2022-01-28 13:02:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:36,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:36,002 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] [2022-01-28 13:02:36,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-28 13:02:36,002 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:36,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1564054122, now seen corresponding path program 64 times [2022-01-28 13:02:36,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:36,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448942679] [2022-01-28 13:02:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:36,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:36,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:36,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448942679] [2022-01-28 13:02:36,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448942679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:36,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:36,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:36,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314829463] [2022-01-28 13:02:36,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:36,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:36,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:36,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:36,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:36,164 INFO L87 Difference]: Start difference. First operand 4417 states and 12968 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) [2022-01-28 13:02:36,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:36,353 INFO L93 Difference]: Finished difference Result 4897 states and 14404 transitions. [2022-01-28 13:02:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 13:02:36,353 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 [2022-01-28 13:02:36,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:36,360 INFO L225 Difference]: With dead ends: 4897 [2022-01-28 13:02:36,361 INFO L226 Difference]: Without dead ends: 4195 [2022-01-28 13:02:36,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:36,361 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 112 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:36,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 948 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:02:36,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4195 states. [2022-01-28 13:02:36,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4195 to 4015. [2022-01-28 13:02:36,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 4014 states have (on average 2.9240159441953164) internal successors, (11737), 4014 states have internal predecessors, (11737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:36,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 11737 transitions. [2022-01-28 13:02:36,416 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 11737 transitions. Word has length 134 [2022-01-28 13:02:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:36,416 INFO L470 AbstractCegarLoop]: Abstraction has 4015 states and 11737 transitions. [2022-01-28 13:02:36,416 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) [2022-01-28 13:02:36,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 11737 transitions. [2022-01-28 13:02:36,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:36,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:36,422 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] [2022-01-28 13:02:36,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-28 13:02:36,422 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:36,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:36,422 INFO L85 PathProgramCache]: Analyzing trace with hash 684318656, now seen corresponding path program 65 times [2022-01-28 13:02:36,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:36,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205095738] [2022-01-28 13:02:36,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:36,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:36,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:36,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205095738] [2022-01-28 13:02:36,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205095738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:36,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:36,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:36,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39681372] [2022-01-28 13:02:36,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:36,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:36,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:36,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:36,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:36,652 INFO L87 Difference]: Start difference. First operand 4015 states and 11737 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) [2022-01-28 13:02:36,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:36,853 INFO L93 Difference]: Finished difference Result 5168 states and 15151 transitions. [2022-01-28 13:02:36,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:02:36,854 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 [2022-01-28 13:02:36,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:36,862 INFO L225 Difference]: With dead ends: 5168 [2022-01-28 13:02:36,862 INFO L226 Difference]: Without dead ends: 4940 [2022-01-28 13:02:36,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:02:36,863 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 235 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:36,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 835 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:36,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4940 states. [2022-01-28 13:02:36,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4940 to 4159. [2022-01-28 13:02:36,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4159 states, 4158 states have (on average 2.9314574314574315) internal successors, (12189), 4158 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:36,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4159 states to 4159 states and 12189 transitions. [2022-01-28 13:02:36,921 INFO L78 Accepts]: Start accepts. Automaton has 4159 states and 12189 transitions. Word has length 134 [2022-01-28 13:02:36,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:36,921 INFO L470 AbstractCegarLoop]: Abstraction has 4159 states and 12189 transitions. [2022-01-28 13:02:36,921 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) [2022-01-28 13:02:36,921 INFO L276 IsEmpty]: Start isEmpty. Operand 4159 states and 12189 transitions. [2022-01-28 13:02:36,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:36,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:36,927 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] [2022-01-28 13:02:36,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-28 13:02:36,927 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:36,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:36,927 INFO L85 PathProgramCache]: Analyzing trace with hash 555405876, now seen corresponding path program 66 times [2022-01-28 13:02:36,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:36,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677089805] [2022-01-28 13:02:36,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:36,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:37,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:37,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:37,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677089805] [2022-01-28 13:02:37,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677089805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:37,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:37,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 13:02:37,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146516448] [2022-01-28 13:02:37,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:37,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 13:02:37,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:37,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 13:02:37,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:02:37,139 INFO L87 Difference]: Start difference. First operand 4159 states and 12189 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) [2022-01-28 13:02:37,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:37,361 INFO L93 Difference]: Finished difference Result 5392 states and 15845 transitions. [2022-01-28 13:02:37,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 13:02:37,361 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 [2022-01-28 13:02:37,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:37,372 INFO L225 Difference]: With dead ends: 5392 [2022-01-28 13:02:37,372 INFO L226 Difference]: Without dead ends: 4912 [2022-01-28 13:02:37,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:37,375 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 240 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:37,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 712 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:37,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4912 states. [2022-01-28 13:02:37,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4912 to 4039. [2022-01-28 13:02:37,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4039 states, 4038 states have (on average 2.906884596334819) internal successors, (11738), 4038 states have internal predecessors, (11738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:37,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4039 states to 4039 states and 11738 transitions. [2022-01-28 13:02:37,454 INFO L78 Accepts]: Start accepts. Automaton has 4039 states and 11738 transitions. Word has length 134 [2022-01-28 13:02:37,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:37,454 INFO L470 AbstractCegarLoop]: Abstraction has 4039 states and 11738 transitions. [2022-01-28 13:02:37,454 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) [2022-01-28 13:02:37,454 INFO L276 IsEmpty]: Start isEmpty. Operand 4039 states and 11738 transitions. [2022-01-28 13:02:37,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:37,461 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:37,461 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] [2022-01-28 13:02:37,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-28 13:02:37,461 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:37,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:37,462 INFO L85 PathProgramCache]: Analyzing trace with hash -481996642, now seen corresponding path program 67 times [2022-01-28 13:02:37,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:37,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849775805] [2022-01-28 13:02:37,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:37,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:37,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:37,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:37,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849775805] [2022-01-28 13:02:37,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849775805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:37,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:37,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:37,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832407460] [2022-01-28 13:02:37,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:37,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:37,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:37,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:37,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:37,620 INFO L87 Difference]: Start difference. First operand 4039 states and 11738 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) [2022-01-28 13:02:37,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:37,795 INFO L93 Difference]: Finished difference Result 4459 states and 12993 transitions. [2022-01-28 13:02:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 13:02:37,796 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 [2022-01-28 13:02:37,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:37,802 INFO L225 Difference]: With dead ends: 4459 [2022-01-28 13:02:37,802 INFO L226 Difference]: Without dead ends: 3931 [2022-01-28 13:02:37,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:37,802 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 102 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:37,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 794 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:02:37,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3931 states. [2022-01-28 13:02:37,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3931 to 3907. [2022-01-28 13:02:37,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3907 states, 3906 states have (on average 2.912442396313364) internal successors, (11376), 3906 states have internal predecessors, (11376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:37,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3907 states to 3907 states and 11376 transitions. [2022-01-28 13:02:37,848 INFO L78 Accepts]: Start accepts. Automaton has 3907 states and 11376 transitions. Word has length 134 [2022-01-28 13:02:37,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:37,849 INFO L470 AbstractCegarLoop]: Abstraction has 3907 states and 11376 transitions. [2022-01-28 13:02:37,849 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) [2022-01-28 13:02:37,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3907 states and 11376 transitions. [2022-01-28 13:02:37,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:37,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:37,853 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] [2022-01-28 13:02:37,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-28 13:02:37,854 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:37,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:37,854 INFO L85 PathProgramCache]: Analyzing trace with hash -886322154, now seen corresponding path program 68 times [2022-01-28 13:02:37,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:37,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420019022] [2022-01-28 13:02:37,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:37,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:38,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:38,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:38,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420019022] [2022-01-28 13:02:38,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420019022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:38,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:38,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-28 13:02:38,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471313578] [2022-01-28 13:02:38,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:38,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-28 13:02:38,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:38,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-28 13:02:38,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-01-28 13:02:38,092 INFO L87 Difference]: Start difference. First operand 3907 states and 11376 transitions. Second operand has 15 states, 15 states have (on average 8.933333333333334) internal successors, (134), 15 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:38,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:38,437 INFO L93 Difference]: Finished difference Result 4147 states and 12064 transitions. [2022-01-28 13:02:38,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:02:38,439 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.933333333333334) internal successors, (134), 15 states have internal predecessors, (134), 0 states have call successors, (0), 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 [2022-01-28 13:02:38,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:38,446 INFO L225 Difference]: With dead ends: 4147 [2022-01-28 13:02:38,446 INFO L226 Difference]: Without dead ends: 3919 [2022-01-28 13:02:38,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-01-28 13:02:38,446 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 272 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:38,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 1520 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:38,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2022-01-28 13:02:38,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3919. [2022-01-28 13:02:38,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3919 states, 3918 states have (on average 2.910923940786115) internal successors, (11405), 3918 states have internal predecessors, (11405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:38,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 11405 transitions. [2022-01-28 13:02:38,496 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 11405 transitions. Word has length 134 [2022-01-28 13:02:38,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:38,496 INFO L470 AbstractCegarLoop]: Abstraction has 3919 states and 11405 transitions. [2022-01-28 13:02:38,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.933333333333334) internal successors, (134), 15 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:38,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 11405 transitions. [2022-01-28 13:02:38,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:38,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:38,502 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] [2022-01-28 13:02:38,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-28 13:02:38,502 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:38,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:38,503 INFO L85 PathProgramCache]: Analyzing trace with hash -760800234, now seen corresponding path program 69 times [2022-01-28 13:02:38,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:38,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073799065] [2022-01-28 13:02:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:38,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:38,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:38,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:38,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073799065] [2022-01-28 13:02:38,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073799065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:38,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:38,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:38,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283753045] [2022-01-28 13:02:38,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:38,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:38,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:38,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:38,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:38,701 INFO L87 Difference]: Start difference. First operand 3919 states and 11405 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) [2022-01-28 13:02:38,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:38,955 INFO L93 Difference]: Finished difference Result 4363 states and 12742 transitions. [2022-01-28 13:02:38,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:02:38,955 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 [2022-01-28 13:02:38,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:38,962 INFO L225 Difference]: With dead ends: 4363 [2022-01-28 13:02:38,962 INFO L226 Difference]: Without dead ends: 3839 [2022-01-28 13:02:38,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-01-28 13:02:38,962 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 179 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:38,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1246 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:38,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2022-01-28 13:02:38,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3839. [2022-01-28 13:02:39,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3839 states, 3838 states have (on average 2.9080250130276184) internal successors, (11161), 3838 states have internal predecessors, (11161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:39,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3839 states to 3839 states and 11161 transitions. [2022-01-28 13:02:39,010 INFO L78 Accepts]: Start accepts. Automaton has 3839 states and 11161 transitions. Word has length 134 [2022-01-28 13:02:39,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:39,010 INFO L470 AbstractCegarLoop]: Abstraction has 3839 states and 11161 transitions. [2022-01-28 13:02:39,010 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) [2022-01-28 13:02:39,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3839 states and 11161 transitions. [2022-01-28 13:02:39,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:39,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:39,015 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] [2022-01-28 13:02:39,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-28 13:02:39,015 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:39,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:39,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1462519168, now seen corresponding path program 70 times [2022-01-28 13:02:39,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:39,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406682535] [2022-01-28 13:02:39,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:39,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:39,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:39,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406682535] [2022-01-28 13:02:39,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406682535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:39,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:39,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:39,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96688615] [2022-01-28 13:02:39,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:39,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:39,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:39,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:39,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:39,130 INFO L87 Difference]: Start difference. First operand 3839 states and 11161 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) [2022-01-28 13:02:39,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:39,374 INFO L93 Difference]: Finished difference Result 4436 states and 12882 transitions. [2022-01-28 13:02:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-28 13:02:39,374 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 [2022-01-28 13:02:39,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:39,380 INFO L225 Difference]: With dead ends: 4436 [2022-01-28 13:02:39,380 INFO L226 Difference]: Without dead ends: 3448 [2022-01-28 13:02:39,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-28 13:02:39,381 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 359 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:39,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 895 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:39,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2022-01-28 13:02:39,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 3271. [2022-01-28 13:02:39,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 3270 states have (on average 2.896330275229358) internal successors, (9471), 3270 states have internal predecessors, (9471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:39,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 9471 transitions. [2022-01-28 13:02:39,428 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 9471 transitions. Word has length 134 [2022-01-28 13:02:39,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:39,428 INFO L470 AbstractCegarLoop]: Abstraction has 3271 states and 9471 transitions. [2022-01-28 13:02:39,428 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) [2022-01-28 13:02:39,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 9471 transitions. [2022-01-28 13:02:39,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:39,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:39,432 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] [2022-01-28 13:02:39,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-28 13:02:39,433 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:39,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:39,433 INFO L85 PathProgramCache]: Analyzing trace with hash 775472158, now seen corresponding path program 71 times [2022-01-28 13:02:39,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:39,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737297430] [2022-01-28 13:02:39,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:39,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:39,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:39,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:39,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737297430] [2022-01-28 13:02:39,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737297430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:39,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:39,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:39,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553117242] [2022-01-28 13:02:39,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:39,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:39,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:39,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:39,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:39,669 INFO L87 Difference]: Start difference. First operand 3271 states and 9471 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) [2022-01-28 13:02:39,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:39,879 INFO L93 Difference]: Finished difference Result 4204 states and 12244 transitions. [2022-01-28 13:02:39,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:02:39,879 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 [2022-01-28 13:02:39,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:39,886 INFO L225 Difference]: With dead ends: 4204 [2022-01-28 13:02:39,886 INFO L226 Difference]: Without dead ends: 3832 [2022-01-28 13:02:39,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:39,887 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 189 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:39,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 1026 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:39,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3832 states. [2022-01-28 13:02:39,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3832 to 3427. [2022-01-28 13:02:39,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3427 states, 3426 states have (on average 2.8955049620548743) internal successors, (9920), 3426 states have internal predecessors, (9920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 9920 transitions. [2022-01-28 13:02:39,938 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 9920 transitions. Word has length 134 [2022-01-28 13:02:39,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:39,938 INFO L470 AbstractCegarLoop]: Abstraction has 3427 states and 9920 transitions. [2022-01-28 13:02:39,939 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) [2022-01-28 13:02:39,939 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 9920 transitions. [2022-01-28 13:02:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:39,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:39,943 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] [2022-01-28 13:02:39,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-28 13:02:39,944 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:39,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:39,944 INFO L85 PathProgramCache]: Analyzing trace with hash 900994078, now seen corresponding path program 72 times [2022-01-28 13:02:39,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:39,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748354307] [2022-01-28 13:02:39,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:39,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:40,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:40,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748354307] [2022-01-28 13:02:40,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748354307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:40,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:40,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:02:40,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447361200] [2022-01-28 13:02:40,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:40,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:02:40,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:40,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:02:40,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:40,273 INFO L87 Difference]: Start difference. First operand 3427 states and 9920 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) [2022-01-28 13:02:40,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:40,485 INFO L93 Difference]: Finished difference Result 3679 states and 10661 transitions. [2022-01-28 13:02:40,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:02:40,485 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 [2022-01-28 13:02:40,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:40,493 INFO L225 Difference]: With dead ends: 3679 [2022-01-28 13:02:40,493 INFO L226 Difference]: Without dead ends: 3379 [2022-01-28 13:02:40,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:40,494 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 119 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:40,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 728 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:40,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3379 states. [2022-01-28 13:02:40,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3379 to 3379. [2022-01-28 13:02:40,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3379 states, 3378 states have (on average 2.892835997631735) internal successors, (9772), 3378 states have internal predecessors, (9772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:40,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3379 states to 3379 states and 9772 transitions. [2022-01-28 13:02:40,554 INFO L78 Accepts]: Start accepts. Automaton has 3379 states and 9772 transitions. Word has length 134 [2022-01-28 13:02:40,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:40,554 INFO L470 AbstractCegarLoop]: Abstraction has 3379 states and 9772 transitions. [2022-01-28 13:02:40,554 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) [2022-01-28 13:02:40,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3379 states and 9772 transitions. [2022-01-28 13:02:40,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:40,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:40,561 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] [2022-01-28 13:02:40,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-28 13:02:40,561 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:40,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:40,561 INFO L85 PathProgramCache]: Analyzing trace with hash -52630960, now seen corresponding path program 73 times [2022-01-28 13:02:40,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:40,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180438752] [2022-01-28 13:02:40,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:40,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:40,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:40,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180438752] [2022-01-28 13:02:40,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180438752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:40,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:40,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:40,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097543660] [2022-01-28 13:02:40,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:40,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:40,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:40,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:40,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:40,758 INFO L87 Difference]: Start difference. First operand 3379 states and 9772 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) [2022-01-28 13:02:40,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:40,962 INFO L93 Difference]: Finished difference Result 3379 states and 9748 transitions. [2022-01-28 13:02:40,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:02:40,963 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 [2022-01-28 13:02:40,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:40,968 INFO L225 Difference]: With dead ends: 3379 [2022-01-28 13:02:40,968 INFO L226 Difference]: Without dead ends: 2939 [2022-01-28 13:02:40,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:02:40,968 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 119 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:40,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 1017 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:40,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2022-01-28 13:02:41,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 2939. [2022-01-28 13:02:41,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2939 states, 2938 states have (on average 2.8900612661674607) internal successors, (8491), 2938 states have internal predecessors, (8491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:41,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2939 states to 2939 states and 8491 transitions. [2022-01-28 13:02:41,011 INFO L78 Accepts]: Start accepts. Automaton has 2939 states and 8491 transitions. Word has length 134 [2022-01-28 13:02:41,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:41,011 INFO L470 AbstractCegarLoop]: Abstraction has 2939 states and 8491 transitions. [2022-01-28 13:02:41,011 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) [2022-01-28 13:02:41,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2939 states and 8491 transitions. [2022-01-28 13:02:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:41,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:41,015 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] [2022-01-28 13:02:41,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-28 13:02:41,015 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:41,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:41,015 INFO L85 PathProgramCache]: Analyzing trace with hash -190268274, now seen corresponding path program 74 times [2022-01-28 13:02:41,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:41,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642441411] [2022-01-28 13:02:41,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:41,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:41,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:41,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:41,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642441411] [2022-01-28 13:02:41,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642441411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:41,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:41,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 13:02:41,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599976916] [2022-01-28 13:02:41,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:41,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 13:02:41,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:41,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 13:02:41,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:02:41,186 INFO L87 Difference]: Start difference. First operand 2939 states and 8491 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) [2022-01-28 13:02:41,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:41,327 INFO L93 Difference]: Finished difference Result 2519 states and 7126 transitions. [2022-01-28 13:02:41,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-28 13:02:41,328 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 [2022-01-28 13:02:41,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:41,332 INFO L225 Difference]: With dead ends: 2519 [2022-01-28 13:02:41,332 INFO L226 Difference]: Without dead ends: 2065 [2022-01-28 13:02:41,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:41,333 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 109 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:41,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 518 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:02:41,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2022-01-28 13:02:41,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 2065. [2022-01-28 13:02:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2065 states, 2064 states have (on average 2.869186046511628) internal successors, (5922), 2064 states have internal predecessors, (5922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:41,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 5922 transitions. [2022-01-28 13:02:41,359 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 5922 transitions. Word has length 134 [2022-01-28 13:02:41,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:41,359 INFO L470 AbstractCegarLoop]: Abstraction has 2065 states and 5922 transitions. [2022-01-28 13:02:41,359 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) [2022-01-28 13:02:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 5922 transitions. [2022-01-28 13:02:41,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:41,361 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:41,362 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] [2022-01-28 13:02:41,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-28 13:02:41,362 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:41,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:41,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1160138798, now seen corresponding path program 75 times [2022-01-28 13:02:41,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:41,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659957566] [2022-01-28 13:02:41,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:41,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:41,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:41,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:41,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659957566] [2022-01-28 13:02:41,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659957566] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:41,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:41,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-28 13:02:41,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908257215] [2022-01-28 13:02:41,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:41,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:02:41,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:41,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:02:41,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:41,528 INFO L87 Difference]: Start difference. First operand 2065 states and 5922 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) [2022-01-28 13:02:41,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:41,781 INFO L93 Difference]: Finished difference Result 2341 states and 6697 transitions. [2022-01-28 13:02:41,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:02:41,782 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 [2022-01-28 13:02:41,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:41,785 INFO L225 Difference]: With dead ends: 2341 [2022-01-28 13:02:41,785 INFO L226 Difference]: Without dead ends: 1913 [2022-01-28 13:02:41,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-01-28 13:02:41,785 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 132 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:41,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1090 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:41,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1913 states. [2022-01-28 13:02:41,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1913 to 1889. [2022-01-28 13:02:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1888 states have (on average 2.871822033898305) internal successors, (5422), 1888 states have internal predecessors, (5422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 5422 transitions. [2022-01-28 13:02:41,808 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 5422 transitions. Word has length 134 [2022-01-28 13:02:41,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:41,809 INFO L470 AbstractCegarLoop]: Abstraction has 1889 states and 5422 transitions. [2022-01-28 13:02:41,809 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) [2022-01-28 13:02:41,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 5422 transitions. [2022-01-28 13:02:41,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:41,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:41,811 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] [2022-01-28 13:02:41,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-28 13:02:41,811 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:41,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:41,812 INFO L85 PathProgramCache]: Analyzing trace with hash 262358674, now seen corresponding path program 76 times [2022-01-28 13:02:41,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:41,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394577750] [2022-01-28 13:02:41,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:41,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:41,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:41,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:41,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394577750] [2022-01-28 13:02:41,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394577750] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:41,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:41,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:41,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804304953] [2022-01-28 13:02:41,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:41,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:41,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:41,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:41,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:41,945 INFO L87 Difference]: Start difference. First operand 1889 states and 5422 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) [2022-01-28 13:02:42,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:42,139 INFO L93 Difference]: Finished difference Result 2721 states and 7818 transitions. [2022-01-28 13:02:42,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:02:42,139 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 [2022-01-28 13:02:42,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:42,143 INFO L225 Difference]: With dead ends: 2721 [2022-01-28 13:02:42,144 INFO L226 Difference]: Without dead ends: 2509 [2022-01-28 13:02:42,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:42,144 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 92 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:42,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 621 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:02:42,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2022-01-28 13:02:42,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 1917. [2022-01-28 13:02:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1916 states have (on average 2.8616910229645094) internal successors, (5483), 1916 states have internal predecessors, (5483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:42,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 5483 transitions. [2022-01-28 13:02:42,173 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 5483 transitions. Word has length 134 [2022-01-28 13:02:42,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:42,174 INFO L470 AbstractCegarLoop]: Abstraction has 1917 states and 5483 transitions. [2022-01-28 13:02:42,174 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) [2022-01-28 13:02:42,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 5483 transitions. [2022-01-28 13:02:42,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:42,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:42,176 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] [2022-01-28 13:02:42,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-28 13:02:42,177 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:42,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:42,177 INFO L85 PathProgramCache]: Analyzing trace with hash 468108176, now seen corresponding path program 77 times [2022-01-28 13:02:42,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:42,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003688365] [2022-01-28 13:02:42,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:42,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:42,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:42,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003688365] [2022-01-28 13:02:42,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003688365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:42,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:42,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-28 13:02:42,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606949671] [2022-01-28 13:02:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:42,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-28 13:02:42,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:42,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-28 13:02:42,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:42,402 INFO L87 Difference]: Start difference. First operand 1917 states and 5483 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) [2022-01-28 13:02:42,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:42,661 INFO L93 Difference]: Finished difference Result 2169 states and 6188 transitions. [2022-01-28 13:02:42,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 13:02:42,662 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 [2022-01-28 13:02:42,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:42,665 INFO L225 Difference]: With dead ends: 2169 [2022-01-28 13:02:42,665 INFO L226 Difference]: Without dead ends: 1745 [2022-01-28 13:02:42,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-01-28 13:02:42,665 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 150 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:42,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 1050 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:42,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2022-01-28 13:02:42,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1721. [2022-01-28 13:02:42,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1720 states have (on average 2.891279069767442) internal successors, (4973), 1720 states have internal predecessors, (4973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:42,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 4973 transitions. [2022-01-28 13:02:42,685 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 4973 transitions. Word has length 134 [2022-01-28 13:02:42,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:42,685 INFO L470 AbstractCegarLoop]: Abstraction has 1721 states and 4973 transitions. [2022-01-28 13:02:42,686 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) [2022-01-28 13:02:42,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 4973 transitions. [2022-01-28 13:02:42,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:42,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:42,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:02:42,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-28 13:02:42,688 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:42,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:42,688 INFO L85 PathProgramCache]: Analyzing trace with hash 357829236, now seen corresponding path program 78 times [2022-01-28 13:02:42,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:42,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727407468] [2022-01-28 13:02:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:42,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:42,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:42,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727407468] [2022-01-28 13:02:42,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727407468] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:42,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:42,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-28 13:02:42,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162596369] [2022-01-28 13:02:42,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:42,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-28 13:02:42,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:42,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-28 13:02:42,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:02:42,857 INFO L87 Difference]: Start difference. First operand 1721 states and 4973 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) [2022-01-28 13:02:43,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:43,032 INFO L93 Difference]: Finished difference Result 2249 states and 6521 transitions. [2022-01-28 13:02:43,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:02:43,033 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 [2022-01-28 13:02:43,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:43,035 INFO L225 Difference]: With dead ends: 2249 [2022-01-28 13:02:43,035 INFO L226 Difference]: Without dead ends: 1709 [2022-01-28 13:02:43,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:02:43,036 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 193 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:43,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 1148 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:02:43,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2022-01-28 13:02:43,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1709. [2022-01-28 13:02:43,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1708 states have (on average 2.889929742388759) internal successors, (4936), 1708 states have internal predecessors, (4936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:43,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 4936 transitions. [2022-01-28 13:02:43,054 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 4936 transitions. Word has length 134 [2022-01-28 13:02:43,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:43,054 INFO L470 AbstractCegarLoop]: Abstraction has 1709 states and 4936 transitions. [2022-01-28 13:02:43,054 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) [2022-01-28 13:02:43,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 4936 transitions. [2022-01-28 13:02:43,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:43,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:43,057 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] [2022-01-28 13:02:43,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-28 13:02:43,057 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:43,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1687039256, now seen corresponding path program 79 times [2022-01-28 13:02:43,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:43,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016905846] [2022-01-28 13:02:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:43,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:43,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:43,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:43,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016905846] [2022-01-28 13:02:43,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016905846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:43,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:43,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:02:43,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090585823] [2022-01-28 13:02:43,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:43,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:02:43,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:43,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:02:43,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:43,172 INFO L87 Difference]: Start difference. First operand 1709 states and 4936 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) [2022-01-28 13:02:43,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:43,353 INFO L93 Difference]: Finished difference Result 2756 states and 8001 transitions. [2022-01-28 13:02:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 13:02:43,353 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 [2022-01-28 13:02:43,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:43,357 INFO L225 Difference]: With dead ends: 2756 [2022-01-28 13:02:43,357 INFO L226 Difference]: Without dead ends: 2408 [2022-01-28 13:02:43,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-01-28 13:02:43,357 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 512 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:43,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 650 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:02:43,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2022-01-28 13:02:43,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 1613. [2022-01-28 13:02:43,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1612 states have (on average 2.8734491315136474) internal successors, (4632), 1612 states have internal predecessors, (4632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:43,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 4632 transitions. [2022-01-28 13:02:43,377 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 4632 transitions. Word has length 134 [2022-01-28 13:02:43,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:43,377 INFO L470 AbstractCegarLoop]: Abstraction has 1613 states and 4632 transitions. [2022-01-28 13:02:43,377 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) [2022-01-28 13:02:43,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 4632 transitions. [2022-01-28 13:02:43,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:43,379 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:43,380 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] [2022-01-28 13:02:43,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-28 13:02:43,380 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:43,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:43,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1098654282, now seen corresponding path program 80 times [2022-01-28 13:02:43,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:43,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479605863] [2022-01-28 13:02:43,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:43,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:43,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:43,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:43,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479605863] [2022-01-28 13:02:43,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479605863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:43,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:43,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-28 13:02:43,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748707219] [2022-01-28 13:02:43,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:43,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:02:43,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:43,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:02:43,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:02:43,547 INFO L87 Difference]: Start difference. First operand 1613 states and 4632 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) [2022-01-28 13:02:43,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:43,727 INFO L93 Difference]: Finished difference Result 1817 states and 5197 transitions. [2022-01-28 13:02:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:02:43,728 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 [2022-01-28 13:02:43,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:43,730 INFO L225 Difference]: With dead ends: 1817 [2022-01-28 13:02:43,730 INFO L226 Difference]: Without dead ends: 1529 [2022-01-28 13:02:43,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:43,730 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 143 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:43,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 832 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:02:43,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2022-01-28 13:02:43,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1529. [2022-01-28 13:02:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1528 states have (on average 2.8776178010471205) internal successors, (4397), 1528 states have internal predecessors, (4397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:43,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 4397 transitions. [2022-01-28 13:02:43,746 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 4397 transitions. Word has length 134 [2022-01-28 13:02:43,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:43,746 INFO L470 AbstractCegarLoop]: Abstraction has 1529 states and 4397 transitions. [2022-01-28 13:02:43,746 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) [2022-01-28 13:02:43,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 4397 transitions. [2022-01-28 13:02:43,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:43,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:43,748 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] [2022-01-28 13:02:43,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-28 13:02:43,748 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:43,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:43,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1296546248, now seen corresponding path program 81 times [2022-01-28 13:02:43,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:43,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641338850] [2022-01-28 13:02:43,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:43,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:43,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:43,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:43,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641338850] [2022-01-28 13:02:43,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641338850] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:43,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:43,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-28 13:02:43,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112965383] [2022-01-28 13:02:43,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:43,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-28 13:02:43,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:43,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-28 13:02:43,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:02:43,952 INFO L87 Difference]: Start difference. First operand 1529 states and 4397 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) [2022-01-28 13:02:44,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:44,166 INFO L93 Difference]: Finished difference Result 2405 states and 6994 transitions. [2022-01-28 13:02:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:02:44,166 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 [2022-01-28 13:02:44,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:44,169 INFO L225 Difference]: With dead ends: 2405 [2022-01-28 13:02:44,169 INFO L226 Difference]: Without dead ends: 2201 [2022-01-28 13:02:44,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:02:44,170 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 204 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:44,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 1223 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:44,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2022-01-28 13:02:44,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 1757. [2022-01-28 13:02:44,188 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) [2022-01-28 13:02:44,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 5020 transitions. [2022-01-28 13:02:44,191 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 5020 transitions. Word has length 134 [2022-01-28 13:02:44,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:44,191 INFO L470 AbstractCegarLoop]: Abstraction has 1757 states and 5020 transitions. [2022-01-28 13:02:44,191 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) [2022-01-28 13:02:44,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 5020 transitions. [2022-01-28 13:02:44,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:44,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:44,193 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] [2022-01-28 13:02:44,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-28 13:02:44,193 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:44,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:44,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1001182776, now seen corresponding path program 82 times [2022-01-28 13:02:44,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:44,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17923737] [2022-01-28 13:02:44,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:44,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:44,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:44,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:44,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17923737] [2022-01-28 13:02:44,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17923737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:44,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:44,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-28 13:02:44,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153150386] [2022-01-28 13:02:44,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:44,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-28 13:02:44,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:44,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-28 13:02:44,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-01-28 13:02:44,410 INFO L87 Difference]: Start difference. First operand 1757 states and 5020 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) [2022-01-28 13:02:44,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:44,646 INFO L93 Difference]: Finished difference Result 1889 states and 5375 transitions. [2022-01-28 13:02:44,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:02:44,646 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 [2022-01-28 13:02:44,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:44,649 INFO L225 Difference]: With dead ends: 1889 [2022-01-28 13:02:44,649 INFO L226 Difference]: Without dead ends: 1733 [2022-01-28 13:02:44,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:02:44,649 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 169 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:44,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 1281 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:44,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2022-01-28 13:02:44,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1733. [2022-01-28 13:02:44,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1732 states have (on average 2.855658198614319) internal successors, (4946), 1732 states have internal predecessors, (4946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:44,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 4946 transitions. [2022-01-28 13:02:44,669 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 4946 transitions. Word has length 134 [2022-01-28 13:02:44,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:44,669 INFO L470 AbstractCegarLoop]: Abstraction has 1733 states and 4946 transitions. [2022-01-28 13:02:44,669 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) [2022-01-28 13:02:44,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 4946 transitions. [2022-01-28 13:02:44,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:44,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:44,671 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] [2022-01-28 13:02:44,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-28 13:02:44,672 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:44,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:44,672 INFO L85 PathProgramCache]: Analyzing trace with hash 546157752, now seen corresponding path program 83 times [2022-01-28 13:02:44,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:44,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534361694] [2022-01-28 13:02:44,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:44,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:44,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:44,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:44,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534361694] [2022-01-28 13:02:44,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534361694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:44,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:44,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-28 13:02:44,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730575215] [2022-01-28 13:02:44,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:44,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-28 13:02:44,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:44,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-28 13:02:44,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:02:44,894 INFO L87 Difference]: Start difference. First operand 1733 states and 4946 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) [2022-01-28 13:02:45,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:45,115 INFO L93 Difference]: Finished difference Result 2993 states and 8747 transitions. [2022-01-28 13:02:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:02:45,115 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 [2022-01-28 13:02:45,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:45,118 INFO L225 Difference]: With dead ends: 2993 [2022-01-28 13:02:45,118 INFO L226 Difference]: Without dead ends: 2093 [2022-01-28 13:02:45,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:02:45,119 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 184 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:45,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 1064 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:02:45,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2022-01-28 13:02:45,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 1241. [2022-01-28 13:02:45,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1240 states have (on average 2.7846774193548387) internal successors, (3453), 1240 states have internal predecessors, (3453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:02:45,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 3453 transitions. [2022-01-28 13:02:45,143 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 3453 transitions. Word has length 134 [2022-01-28 13:02:45,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:45,143 INFO L470 AbstractCegarLoop]: Abstraction has 1241 states and 3453 transitions. [2022-01-28 13:02:45,143 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) [2022-01-28 13:02:45,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 3453 transitions. [2022-01-28 13:02:45,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-28 13:02:45,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:02:45,145 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] [2022-01-28 13:02:45,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-28 13:02:45,145 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:02:45,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:02:45,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1865435434, now seen corresponding path program 84 times [2022-01-28 13:02:45,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:02:45,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285396706] [2022-01-28 13:02:45,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:02:45,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:02:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:02:45,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:02:45,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:02:45,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285396706] [2022-01-28 13:02:45,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285396706] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:02:45,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:02:45,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-28 13:02:45,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001594585] [2022-01-28 13:02:45,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:02:45,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:02:45,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:02:45,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:02:45,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:02:45,343 INFO L87 Difference]: Start difference. First operand 1241 states and 3453 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) [2022-01-28 13:02:45,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:02:45,433 INFO L93 Difference]: Finished difference Result 602 states and 1494 transitions. [2022-01-28 13:02:45,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 13:02:45,433 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 [2022-01-28 13:02:45,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:02:45,434 INFO L225 Difference]: With dead ends: 602 [2022-01-28 13:02:45,434 INFO L226 Difference]: Without dead ends: 0 [2022-01-28 13:02:45,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:02:45,434 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 125 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:02:45,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 533 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:02:45,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-28 13:02:45,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-28 13:02:45,434 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) [2022-01-28 13:02:45,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-28 13:02:45,435 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2022-01-28 13:02:45,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:02:45,435 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-28 13:02:45,435 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) [2022-01-28 13:02:45,435 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-28 13:02:45,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-28 13:02:45,437 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-28 13:02:45,440 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-28 13:02:45,440 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-28 13:02:45,440 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-28 13:02:45,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-28 13:02:45,443 INFO L732 BasicCegarLoop]: Path program histogram: [84] [2022-01-28 13:02:45,445 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-28 13:02:45,445 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-28 13:02:45,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 01:02:45 BasicIcfg [2022-01-28 13:02:45,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-28 13:02:45,447 INFO L158 Benchmark]: Toolchain (without parser) took 96549.75ms. Allocated memory was 192.9MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 135.5MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 4.5GB. Max. memory is 8.0GB. [2022-01-28 13:02:45,447 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 192.9MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 13:02:45,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.83ms. Allocated memory was 192.9MB in the beginning and 282.1MB in the end (delta: 89.1MB). Free memory was 135.3MB in the beginning and 250.5MB in the end (delta: -115.2MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. [2022-01-28 13:02:45,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.44ms. Allocated memory is still 282.1MB. Free memory was 250.5MB in the beginning and 248.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-28 13:02:45,448 INFO L158 Benchmark]: Boogie Preprocessor took 32.95ms. Allocated memory is still 282.1MB. Free memory was 248.4MB in the beginning and 246.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-28 13:02:45,448 INFO L158 Benchmark]: RCFGBuilder took 618.91ms. Allocated memory is still 282.1MB. Free memory was 246.8MB in the beginning and 217.9MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-01-28 13:02:45,448 INFO L158 Benchmark]: TraceAbstraction took 95577.82ms. Allocated memory was 282.1MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 217.4MB in the beginning and 3.4GB in the end (delta: -3.2GB). Peak memory consumption was 4.5GB. Max. memory is 8.0GB. [2022-01-28 13:02:45,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 192.9MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 267.83ms. Allocated memory was 192.9MB in the beginning and 282.1MB in the end (delta: 89.1MB). Free memory was 135.3MB in the beginning and 250.5MB in the end (delta: -115.2MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.44ms. Allocated memory is still 282.1MB. Free memory was 250.5MB in the beginning and 248.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.95ms. Allocated memory is still 282.1MB. Free memory was 248.4MB in the beginning and 246.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 618.91ms. Allocated memory is still 282.1MB. Free memory was 246.8MB in the beginning and 217.9MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 95577.82ms. Allocated memory was 282.1MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 217.4MB in the beginning and 3.4GB in the end (delta: -3.2GB). Peak memory consumption was 4.5GB. 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: 95.4s, OverallIterations: 84, TraceHistogramMax: 1, PathProgramHistogramMax: 84, EmptinessCheckTime: 3.2s, AutomataDifference: 41.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22285 SdHoareTripleChecker+Valid, 21.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22285 mSDsluCounter, 88568 SdHoareTripleChecker+Invalid, 17.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88611 mSDsCounter, 2699 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44471 IncrementalHoareTripleChecker+Invalid, 47170 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2699 mSolverCounterUnsat, 14566 mSDtfsCounter, 44471 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1466 GetRequests, 371 SyntacticMatches, 36 SemanticMatches, 1059 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2450 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27673occurred in iteration=15, InterpolantAutomatonStates: 1009, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 32.3s AutomataMinimizationTime, 84 MinimizatonAttempts, 271341 StatesRemovedByMinimization, 65 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 11256 NumberOfCodeBlocks, 11256 NumberOfCodeBlocksAsserted, 84 NumberOfCheckSat, 11172 ConstructedInterpolants, 0 QuantifiedInterpolants, 49477 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 84 InterpolantComputations, 84 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! [2022-01-28 13:02:45,482 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...