/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:25:49,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:25:49,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:25:49,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:25:49,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:25:49,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:25:49,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:25:49,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:25:49,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:25:49,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:25:49,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:25:49,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:25:49,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:25:49,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:25:49,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:25:49,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:25:49,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:25:49,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:25:49,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:25:49,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:25:49,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:25:49,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:25:49,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:25:49,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:25:49,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:25:49,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:25:49,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:25:49,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:25:49,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:25:49,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:25:49,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:25:49,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:25:49,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:25:49,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:25:49,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:25:49,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:25:49,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:25:49,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:25:49,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:25:49,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:25:49,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:25:49,974 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:25:50,016 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:25:50,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:25:50,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:25:50,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:25:50,018 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:25:50,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:25:50,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:25:50,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:25:50,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:25:50,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:25:50,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:25:50,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:25:50,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:25:50,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:25:50,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:25:50,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:25:50,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:25:50,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:25:50,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:25:50,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:25:50,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:25:50,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:25:50,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:25:50,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:25:50,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:25:50,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:25:50,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:25:50,024 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:25:50,025 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:25:50,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:25:50,025 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:25:50,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:25:50,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:25:50,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:25:50,317 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:25:50,317 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:25:50,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2020-10-22 02:25:50,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a635d63e1/a34a3c50258342c690fd12531ca22160/FLAG52212614a [2020-10-22 02:25:51,066 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:25:51,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2020-10-22 02:25:51,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a635d63e1/a34a3c50258342c690fd12531ca22160/FLAG52212614a [2020-10-22 02:25:51,227 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a635d63e1/a34a3c50258342c690fd12531ca22160 [2020-10-22 02:25:51,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:25:51,243 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:25:51,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:25:51,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:25:51,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:25:51,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:25:51" (1/1) ... [2020-10-22 02:25:51,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4be7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:51, skipping insertion in model container [2020-10-22 02:25:51,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:25:51" (1/1) ... [2020-10-22 02:25:51,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:25:51,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:25:51,512 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-22 02:25:52,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:25:52,048 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:25:52,062 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-22 02:25:52,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:25:52,501 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:25:52,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52 WrapperNode [2020-10-22 02:25:52,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:25:52,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:25:52,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:25:52,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:25:52,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52" (1/1) ... [2020-10-22 02:25:52,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52" (1/1) ... [2020-10-22 02:25:52,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:25:52,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:25:52,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:25:52,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:25:52,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52" (1/1) ... [2020-10-22 02:25:52,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52" (1/1) ... [2020-10-22 02:25:52,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52" (1/1) ... [2020-10-22 02:25:52,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52" (1/1) ... [2020-10-22 02:25:52,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52" (1/1) ... [2020-10-22 02:25:52,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52" (1/1) ... [2020-10-22 02:25:52,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52" (1/1) ... [2020-10-22 02:25:52,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:25:52,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:25:52,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:25:52,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:25:52,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:25:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:25:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:25:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:25:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-22 02:25:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-22 02:25:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:25:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:25:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-10-22 02:25:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-10-22 02:25:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:25:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:25:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:25:52,724 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:25:53,471 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:25:53,471 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-10-22 02:25:53,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:25:53 BoogieIcfgContainer [2020-10-22 02:25:53,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:25:53,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:25:53,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:25:53,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:25:53,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:25:51" (1/3) ... [2020-10-22 02:25:53,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb3c353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:25:53, skipping insertion in model container [2020-10-22 02:25:53,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:52" (2/3) ... [2020-10-22 02:25:53,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb3c353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:25:53, skipping insertion in model container [2020-10-22 02:25:53,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:25:53" (3/3) ... [2020-10-22 02:25:53,487 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2020-10-22 02:25:53,500 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:25:53,501 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:25:53,510 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-22 02:25:53,511 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:25:53,546 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,546 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,546 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,546 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,547 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,547 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,548 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,548 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,548 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,548 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,549 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,549 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,549 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,549 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,550 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,550 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,550 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,551 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,551 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,551 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,551 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,554 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,554 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,554 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,555 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,555 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,556 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,560 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,560 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,560 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,562 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,562 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,565 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,565 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,565 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,566 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,566 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,566 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,566 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,567 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,567 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:53,576 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-22 02:25:53,591 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-22 02:25:53,610 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:25:53,611 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:25:53,611 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:25:53,611 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:25:53,611 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:25:53,611 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:25:53,611 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:25:53,612 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:25:53,629 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:25:53,630 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 178 transitions, 378 flow [2020-10-22 02:25:53,632 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 178 transitions, 378 flow [2020-10-22 02:25:53,634 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 168 places, 178 transitions, 378 flow [2020-10-22 02:25:53,749 INFO L129 PetriNetUnfolder]: 19/226 cut-off events. [2020-10-22 02:25:53,753 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-22 02:25:53,762 INFO L80 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 226 events. 19/226 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 444 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 126. Up to 4 conditions per place. [2020-10-22 02:25:53,768 INFO L116 LiptonReduction]: Number of co-enabled transitions 1872 [2020-10-22 02:25:55,274 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 02:25:55,297 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 02:25:55,301 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 02:25:55,313 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 02:25:55,315 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-22 02:25:55,315 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:95, output treesize:67 [2020-10-22 02:25:56,084 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-22 02:25:57,263 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-22 02:25:57,950 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-22 02:25:57,977 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 02:25:58,063 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 02:25:58,075 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 02:25:58,154 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 02:25:58,155 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-22 02:25:58,155 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:163, output treesize:135 [2020-10-22 02:25:58,490 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-22 02:25:58,506 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 02:25:58,596 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 02:25:58,603 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 02:25:58,692 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 02:25:58,693 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-22 02:25:58,693 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:172, output treesize:144 [2020-10-22 02:26:00,023 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 144 [2020-10-22 02:26:00,353 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-22 02:26:00,542 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-22 02:26:02,294 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 173 DAG size of output: 171 [2020-10-22 02:26:02,343 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 02:26:03,405 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 152 [2020-10-22 02:26:03,407 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 02:26:03,427 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-22 02:26:04,169 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-22 02:26:04,170 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 02:26:04,172 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-22 02:26:04,172 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:350, output treesize:362 [2020-10-22 02:26:04,899 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-22 02:26:05,762 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 159 [2020-10-22 02:26:06,157 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-22 02:26:06,166 INFO L131 LiptonReduction]: Checked pairs total: 3600 [2020-10-22 02:26:06,166 INFO L133 LiptonReduction]: Total number of compositions: 222 [2020-10-22 02:26:06,172 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 32 transitions, 86 flow [2020-10-22 02:26:06,184 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 121 states. [2020-10-22 02:26:06,186 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2020-10-22 02:26:06,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-22 02:26:06,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:06,193 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-22 02:26:06,193 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:06,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:06,199 INFO L82 PathProgramCache]: Analyzing trace with hash 688, now seen corresponding path program 1 times [2020-10-22 02:26:06,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:06,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201304134] [2020-10-22 02:26:06,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:06,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:06,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201304134] [2020-10-22 02:26:06,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:06,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-22 02:26:06,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [98570196] [2020-10-22 02:26:06,465 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:06,467 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:06,475 INFO L252 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-10-22 02:26:06,475 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:06,479 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:06,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 02:26:06,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:06,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 02:26:06,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:26:06,498 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 2 states. [2020-10-22 02:26:06,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:06,535 INFO L93 Difference]: Finished difference Result 119 states and 236 transitions. [2020-10-22 02:26:06,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 02:26:06,537 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-22 02:26:06,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:06,547 INFO L225 Difference]: With dead ends: 119 [2020-10-22 02:26:06,547 INFO L226 Difference]: Without dead ends: 108 [2020-10-22 02:26:06,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:26:06,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-22 02:26:06,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-22 02:26:06,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-22 02:26:06,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 213 transitions. [2020-10-22 02:26:06,592 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 213 transitions. Word has length 1 [2020-10-22 02:26:06,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:06,593 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 213 transitions. [2020-10-22 02:26:06,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 02:26:06,593 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 213 transitions. [2020-10-22 02:26:06,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-22 02:26:06,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:06,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-22 02:26:06,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:26:06,594 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:06,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:06,595 INFO L82 PathProgramCache]: Analyzing trace with hash 654434250, now seen corresponding path program 1 times [2020-10-22 02:26:06,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:06,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083014423] [2020-10-22 02:26:06,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:06,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:06,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083014423] [2020-10-22 02:26:06,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:06,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:26:06,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [313156662] [2020-10-22 02:26:06,858 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:06,859 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:06,861 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-22 02:26:06,861 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:06,862 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:06,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:26:06,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:06,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:26:06,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:26:06,864 INFO L87 Difference]: Start difference. First operand 108 states and 213 transitions. Second operand 4 states. [2020-10-22 02:26:07,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:07,017 INFO L93 Difference]: Finished difference Result 146 states and 291 transitions. [2020-10-22 02:26:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:26:07,018 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-22 02:26:07,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:07,022 INFO L225 Difference]: With dead ends: 146 [2020-10-22 02:26:07,022 INFO L226 Difference]: Without dead ends: 146 [2020-10-22 02:26:07,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:26:07,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-22 02:26:07,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 130. [2020-10-22 02:26:07,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-22 02:26:07,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 263 transitions. [2020-10-22 02:26:07,041 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 263 transitions. Word has length 5 [2020-10-22 02:26:07,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:07,041 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 263 transitions. [2020-10-22 02:26:07,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:26:07,042 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 263 transitions. [2020-10-22 02:26:07,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-22 02:26:07,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:07,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-22 02:26:07,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:26:07,043 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:07,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:07,043 INFO L82 PathProgramCache]: Analyzing trace with hash 654434302, now seen corresponding path program 1 times [2020-10-22 02:26:07,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:07,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367409023] [2020-10-22 02:26:07,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:07,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:07,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367409023] [2020-10-22 02:26:07,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:07,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:26:07,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [651657347] [2020-10-22 02:26:07,143 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:07,145 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:07,146 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-22 02:26:07,146 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:07,147 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:07,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:26:07,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:07,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:26:07,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:26:07,149 INFO L87 Difference]: Start difference. First operand 130 states and 263 transitions. Second operand 3 states. [2020-10-22 02:26:07,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:07,216 INFO L93 Difference]: Finished difference Result 160 states and 315 transitions. [2020-10-22 02:26:07,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:26:07,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-22 02:26:07,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:07,219 INFO L225 Difference]: With dead ends: 160 [2020-10-22 02:26:07,219 INFO L226 Difference]: Without dead ends: 153 [2020-10-22 02:26:07,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:26:07,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-22 02:26:07,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 145. [2020-10-22 02:26:07,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-22 02:26:07,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 297 transitions. [2020-10-22 02:26:07,237 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 297 transitions. Word has length 5 [2020-10-22 02:26:07,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:07,237 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 297 transitions. [2020-10-22 02:26:07,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:26:07,237 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 297 transitions. [2020-10-22 02:26:07,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:26:07,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:07,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:07,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:26:07,239 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:07,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:07,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1212118520, now seen corresponding path program 1 times [2020-10-22 02:26:07,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:07,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274151380] [2020-10-22 02:26:07,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:07,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:07,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274151380] [2020-10-22 02:26:07,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:07,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:26:07,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [675156908] [2020-10-22 02:26:07,311 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:07,313 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:07,316 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 02:26:07,316 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:07,317 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:07,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:26:07,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:07,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:26:07,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:26:07,319 INFO L87 Difference]: Start difference. First operand 145 states and 297 transitions. Second operand 3 states. [2020-10-22 02:26:07,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:07,338 INFO L93 Difference]: Finished difference Result 57 states and 101 transitions. [2020-10-22 02:26:07,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:26:07,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 02:26:07,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:07,340 INFO L225 Difference]: With dead ends: 57 [2020-10-22 02:26:07,340 INFO L226 Difference]: Without dead ends: 57 [2020-10-22 02:26:07,341 INFO L677 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 [2020-10-22 02:26:07,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-22 02:26:07,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-22 02:26:07,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-22 02:26:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 101 transitions. [2020-10-22 02:26:07,352 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 101 transitions. Word has length 10 [2020-10-22 02:26:07,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:07,353 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 101 transitions. [2020-10-22 02:26:07,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:26:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 101 transitions. [2020-10-22 02:26:07,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:07,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:07,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:07,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:26:07,354 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:07,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1197590593, now seen corresponding path program 1 times [2020-10-22 02:26:07,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:07,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420169275] [2020-10-22 02:26:07,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:07,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:07,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420169275] [2020-10-22 02:26:07,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:07,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 02:26:07,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [733202321] [2020-10-22 02:26:07,680 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:07,685 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:07,690 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 02:26:07,690 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:07,835 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 24 [2020-10-22 02:26:07,847 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:07,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:26:07,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:07,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:26:07,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:26:07,849 INFO L87 Difference]: Start difference. First operand 57 states and 101 transitions. Second operand 7 states. [2020-10-22 02:26:08,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:08,147 INFO L93 Difference]: Finished difference Result 98 states and 161 transitions. [2020-10-22 02:26:08,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:08,147 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-22 02:26:08,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:08,149 INFO L225 Difference]: With dead ends: 98 [2020-10-22 02:26:08,149 INFO L226 Difference]: Without dead ends: 98 [2020-10-22 02:26:08,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2020-10-22 02:26:08,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-22 02:26:08,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 74. [2020-10-22 02:26:08,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-22 02:26:08,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 124 transitions. [2020-10-22 02:26:08,156 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 124 transitions. Word has length 16 [2020-10-22 02:26:08,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:08,157 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 124 transitions. [2020-10-22 02:26:08,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:26:08,157 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 124 transitions. [2020-10-22 02:26:08,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:08,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:08,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:08,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:26:08,158 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:08,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:08,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1197590631, now seen corresponding path program 1 times [2020-10-22 02:26:08,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:08,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988811911] [2020-10-22 02:26:08,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:08,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:08,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988811911] [2020-10-22 02:26:08,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:08,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:08,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [520320037] [2020-10-22 02:26:08,776 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:08,781 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:08,787 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 02:26:08,787 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:08,852 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:08,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:08,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:08,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:08,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:08,853 INFO L87 Difference]: Start difference. First operand 74 states and 124 transitions. Second operand 10 states. [2020-10-22 02:26:09,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:09,238 INFO L93 Difference]: Finished difference Result 88 states and 141 transitions. [2020-10-22 02:26:09,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:09,239 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:09,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:09,241 INFO L225 Difference]: With dead ends: 88 [2020-10-22 02:26:09,241 INFO L226 Difference]: Without dead ends: 77 [2020-10-22 02:26:09,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:09,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-22 02:26:09,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 72. [2020-10-22 02:26:09,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-22 02:26:09,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 120 transitions. [2020-10-22 02:26:09,248 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 120 transitions. Word has length 16 [2020-10-22 02:26:09,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:09,248 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 120 transitions. [2020-10-22 02:26:09,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:09,248 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 120 transitions. [2020-10-22 02:26:09,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:09,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:09,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:09,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:26:09,250 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:09,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:09,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1365975115, now seen corresponding path program 2 times [2020-10-22 02:26:09,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:09,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188956584] [2020-10-22 02:26:09,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:09,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188956584] [2020-10-22 02:26:09,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:09,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:09,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1610819695] [2020-10-22 02:26:09,798 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:09,802 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:09,807 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 02:26:09,807 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:09,831 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:09,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:09,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:09,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:09,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:09,832 INFO L87 Difference]: Start difference. First operand 72 states and 120 transitions. Second operand 10 states. [2020-10-22 02:26:10,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:10,235 INFO L93 Difference]: Finished difference Result 77 states and 127 transitions. [2020-10-22 02:26:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 02:26:10,235 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:10,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:10,236 INFO L225 Difference]: With dead ends: 77 [2020-10-22 02:26:10,236 INFO L226 Difference]: Without dead ends: 62 [2020-10-22 02:26:10,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:10,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-22 02:26:10,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2020-10-22 02:26:10,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-22 02:26:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 99 transitions. [2020-10-22 02:26:10,241 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 99 transitions. Word has length 16 [2020-10-22 02:26:10,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:10,241 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 99 transitions. [2020-10-22 02:26:10,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:10,242 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 99 transitions. [2020-10-22 02:26:10,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:10,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:10,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:10,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:26:10,243 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:10,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:10,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1825504767, now seen corresponding path program 2 times [2020-10-22 02:26:10,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:10,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62120805] [2020-10-22 02:26:10,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:10,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:10,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62120805] [2020-10-22 02:26:10,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:10,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 02:26:10,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [563476987] [2020-10-22 02:26:10,508 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:10,512 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:10,516 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:10,517 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:10,517 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:10,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:26:10,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:10,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:26:10,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:26:10,518 INFO L87 Difference]: Start difference. First operand 57 states and 99 transitions. Second operand 7 states. [2020-10-22 02:26:10,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:10,818 INFO L93 Difference]: Finished difference Result 86 states and 145 transitions. [2020-10-22 02:26:10,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:26:10,818 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-22 02:26:10,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:10,820 INFO L225 Difference]: With dead ends: 86 [2020-10-22 02:26:10,820 INFO L226 Difference]: Without dead ends: 86 [2020-10-22 02:26:10,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-22 02:26:10,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-22 02:26:10,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 70. [2020-10-22 02:26:10,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-22 02:26:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 116 transitions. [2020-10-22 02:26:10,825 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 116 transitions. Word has length 16 [2020-10-22 02:26:10,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:10,825 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 116 transitions. [2020-10-22 02:26:10,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:26:10,825 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 116 transitions. [2020-10-22 02:26:10,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:10,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:10,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:10,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:26:10,827 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:10,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:10,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1825504729, now seen corresponding path program 3 times [2020-10-22 02:26:10,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:10,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724240398] [2020-10-22 02:26:10,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:11,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:11,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724240398] [2020-10-22 02:26:11,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:11,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:11,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1778167069] [2020-10-22 02:26:11,290 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:11,293 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:11,298 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:11,298 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:11,298 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:11,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:11,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:11,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:11,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:11,300 INFO L87 Difference]: Start difference. First operand 70 states and 116 transitions. Second operand 10 states. [2020-10-22 02:26:11,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:11,702 INFO L93 Difference]: Finished difference Result 91 states and 146 transitions. [2020-10-22 02:26:11,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:11,705 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:11,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:11,705 INFO L225 Difference]: With dead ends: 91 [2020-10-22 02:26:11,705 INFO L226 Difference]: Without dead ends: 70 [2020-10-22 02:26:11,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:11,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-22 02:26:11,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-10-22 02:26:11,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-22 02:26:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 108 transitions. [2020-10-22 02:26:11,714 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 108 transitions. Word has length 16 [2020-10-22 02:26:11,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:11,715 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 108 transitions. [2020-10-22 02:26:11,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:11,715 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 108 transitions. [2020-10-22 02:26:11,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:11,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:11,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:11,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 02:26:11,721 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:11,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:11,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1400756409, now seen corresponding path program 3 times [2020-10-22 02:26:11,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:11,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552809868] [2020-10-22 02:26:11,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:12,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:12,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552809868] [2020-10-22 02:26:12,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:12,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-22 02:26:12,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1043816631] [2020-10-22 02:26:12,130 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:12,133 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:12,139 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 02:26:12,139 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:12,272 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 24 [2020-10-22 02:26:12,398 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 31 [2020-10-22 02:26:12,406 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:12,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-22 02:26:12,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:12,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-22 02:26:12,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-22 02:26:12,407 INFO L87 Difference]: Start difference. First operand 66 states and 108 transitions. Second operand 9 states. [2020-10-22 02:26:12,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:12,884 INFO L93 Difference]: Finished difference Result 118 states and 181 transitions. [2020-10-22 02:26:12,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-22 02:26:12,884 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-22 02:26:12,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:12,885 INFO L225 Difference]: With dead ends: 118 [2020-10-22 02:26:12,886 INFO L226 Difference]: Without dead ends: 118 [2020-10-22 02:26:12,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-10-22 02:26:12,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-22 02:26:12,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 77. [2020-10-22 02:26:12,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-22 02:26:12,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 128 transitions. [2020-10-22 02:26:12,891 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 128 transitions. Word has length 16 [2020-10-22 02:26:12,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:12,891 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 128 transitions. [2020-10-22 02:26:12,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-22 02:26:12,891 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 128 transitions. [2020-10-22 02:26:12,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:12,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:12,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:12,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 02:26:12,892 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:12,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:12,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1400756371, now seen corresponding path program 4 times [2020-10-22 02:26:12,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:12,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394735668] [2020-10-22 02:26:12,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:13,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394735668] [2020-10-22 02:26:13,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:13,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:13,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1009608431] [2020-10-22 02:26:13,288 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:13,291 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:13,295 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 02:26:13,295 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:13,451 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:13,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:13,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:13,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:13,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:13,453 INFO L87 Difference]: Start difference. First operand 77 states and 128 transitions. Second operand 10 states. [2020-10-22 02:26:13,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:13,802 INFO L93 Difference]: Finished difference Result 110 states and 181 transitions. [2020-10-22 02:26:13,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:13,802 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:13,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:13,803 INFO L225 Difference]: With dead ends: 110 [2020-10-22 02:26:13,803 INFO L226 Difference]: Without dead ends: 99 [2020-10-22 02:26:13,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:13,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-22 02:26:13,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 81. [2020-10-22 02:26:13,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-22 02:26:13,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 136 transitions. [2020-10-22 02:26:13,807 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 136 transitions. Word has length 16 [2020-10-22 02:26:13,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:13,808 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 136 transitions. [2020-10-22 02:26:13,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:13,808 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 136 transitions. [2020-10-22 02:26:13,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:13,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:13,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:13,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-22 02:26:13,809 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:13,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:13,810 INFO L82 PathProgramCache]: Analyzing trace with hash 330645179, now seen corresponding path program 5 times [2020-10-22 02:26:13,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:13,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430958336] [2020-10-22 02:26:13,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:14,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430958336] [2020-10-22 02:26:14,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:14,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:14,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1529294474] [2020-10-22 02:26:14,270 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:14,272 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:14,277 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 02:26:14,277 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:14,415 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 23 [2020-10-22 02:26:14,416 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:14,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:14,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:14,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:14,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:14,417 INFO L87 Difference]: Start difference. First operand 81 states and 136 transitions. Second operand 10 states. [2020-10-22 02:26:14,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:14,786 INFO L93 Difference]: Finished difference Result 116 states and 191 transitions. [2020-10-22 02:26:14,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 02:26:14,787 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:14,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:14,789 INFO L225 Difference]: With dead ends: 116 [2020-10-22 02:26:14,789 INFO L226 Difference]: Without dead ends: 101 [2020-10-22 02:26:14,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:14,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-22 02:26:14,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 79. [2020-10-22 02:26:14,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-22 02:26:14,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 132 transitions. [2020-10-22 02:26:14,794 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 132 transitions. Word has length 16 [2020-10-22 02:26:14,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:14,794 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 132 transitions. [2020-10-22 02:26:14,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:14,794 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 132 transitions. [2020-10-22 02:26:14,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:14,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:14,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:14,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-22 02:26:14,797 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:14,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:14,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1002549257, now seen corresponding path program 6 times [2020-10-22 02:26:14,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:14,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041373369] [2020-10-22 02:26:14,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:15,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041373369] [2020-10-22 02:26:15,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:15,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:15,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1273569084] [2020-10-22 02:26:15,200 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:15,202 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:15,206 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 02:26:15,207 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:15,374 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:15,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:15,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:15,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:15,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:15,376 INFO L87 Difference]: Start difference. First operand 79 states and 132 transitions. Second operand 10 states. [2020-10-22 02:26:15,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:15,740 INFO L93 Difference]: Finished difference Result 104 states and 167 transitions. [2020-10-22 02:26:15,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:15,740 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:15,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:15,741 INFO L225 Difference]: With dead ends: 104 [2020-10-22 02:26:15,741 INFO L226 Difference]: Without dead ends: 93 [2020-10-22 02:26:15,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:15,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-22 02:26:15,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81. [2020-10-22 02:26:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-22 02:26:15,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 134 transitions. [2020-10-22 02:26:15,745 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 134 transitions. Word has length 16 [2020-10-22 02:26:15,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:15,746 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 134 transitions. [2020-10-22 02:26:15,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:15,746 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 134 transitions. [2020-10-22 02:26:15,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:15,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:15,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:15,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-22 02:26:15,747 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:15,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:15,747 INFO L82 PathProgramCache]: Analyzing trace with hash 615893921, now seen corresponding path program 7 times [2020-10-22 02:26:15,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:15,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244042176] [2020-10-22 02:26:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:16,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:16,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244042176] [2020-10-22 02:26:16,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:16,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:16,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [280533507] [2020-10-22 02:26:16,205 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:16,207 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:16,212 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 02:26:16,212 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:16,325 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:16,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:16,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:16,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:16,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:16,327 INFO L87 Difference]: Start difference. First operand 81 states and 134 transitions. Second operand 10 states. [2020-10-22 02:26:16,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:16,692 INFO L93 Difference]: Finished difference Result 110 states and 177 transitions. [2020-10-22 02:26:16,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 02:26:16,692 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:16,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:16,693 INFO L225 Difference]: With dead ends: 110 [2020-10-22 02:26:16,693 INFO L226 Difference]: Without dead ends: 95 [2020-10-22 02:26:16,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:16,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-22 02:26:16,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 79. [2020-10-22 02:26:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-22 02:26:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 130 transitions. [2020-10-22 02:26:16,697 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 130 transitions. Word has length 16 [2020-10-22 02:26:16,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:16,697 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 130 transitions. [2020-10-22 02:26:16,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:16,697 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 130 transitions. [2020-10-22 02:26:16,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:16,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:16,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:16,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-22 02:26:16,699 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:16,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:16,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1037223855, now seen corresponding path program 8 times [2020-10-22 02:26:16,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:16,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805466003] [2020-10-22 02:26:16,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:17,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805466003] [2020-10-22 02:26:17,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:17,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:17,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [96546850] [2020-10-22 02:26:17,189 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:17,194 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:17,200 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 02:26:17,200 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:17,246 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:17,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:17,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:17,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:17,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:17,248 INFO L87 Difference]: Start difference. First operand 79 states and 130 transitions. Second operand 10 states. [2020-10-22 02:26:17,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:17,674 INFO L93 Difference]: Finished difference Result 99 states and 159 transitions. [2020-10-22 02:26:17,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:17,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:17,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:17,676 INFO L225 Difference]: With dead ends: 99 [2020-10-22 02:26:17,676 INFO L226 Difference]: Without dead ends: 86 [2020-10-22 02:26:17,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:17,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-22 02:26:17,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 80. [2020-10-22 02:26:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-22 02:26:17,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 131 transitions. [2020-10-22 02:26:17,680 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 131 transitions. Word has length 16 [2020-10-22 02:26:17,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:17,681 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 131 transitions. [2020-10-22 02:26:17,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:17,681 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 131 transitions. [2020-10-22 02:26:17,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:17,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:17,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:17,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-22 02:26:17,682 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:17,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:17,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1150182227, now seen corresponding path program 9 times [2020-10-22 02:26:17,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:17,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730100940] [2020-10-22 02:26:17,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:18,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:18,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730100940] [2020-10-22 02:26:18,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:18,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:18,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1731899399] [2020-10-22 02:26:18,215 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:18,218 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:18,223 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 02:26:18,223 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:18,274 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:18,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:18,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:18,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:18,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:18,276 INFO L87 Difference]: Start difference. First operand 80 states and 131 transitions. Second operand 10 states. [2020-10-22 02:26:18,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:18,675 INFO L93 Difference]: Finished difference Result 95 states and 151 transitions. [2020-10-22 02:26:18,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:18,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:18,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:18,676 INFO L225 Difference]: With dead ends: 95 [2020-10-22 02:26:18,677 INFO L226 Difference]: Without dead ends: 79 [2020-10-22 02:26:18,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:18,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-22 02:26:18,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2020-10-22 02:26:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-22 02:26:18,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 126 transitions. [2020-10-22 02:26:18,681 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 126 transitions. Word has length 16 [2020-10-22 02:26:18,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:18,681 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 126 transitions. [2020-10-22 02:26:18,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:18,681 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 126 transitions. [2020-10-22 02:26:18,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:18,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:18,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:18,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-22 02:26:18,682 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:18,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:18,683 INFO L82 PathProgramCache]: Analyzing trace with hash -123632883, now seen corresponding path program 10 times [2020-10-22 02:26:18,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:18,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235010060] [2020-10-22 02:26:18,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:19,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:19,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235010060] [2020-10-22 02:26:19,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:19,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:19,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1536712831] [2020-10-22 02:26:19,176 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:19,179 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:19,183 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:19,183 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:19,184 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:19,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:19,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:19,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:19,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:19,186 INFO L87 Difference]: Start difference. First operand 77 states and 126 transitions. Second operand 10 states. [2020-10-22 02:26:19,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:19,659 INFO L93 Difference]: Finished difference Result 99 states and 158 transitions. [2020-10-22 02:26:19,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:19,660 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:19,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:19,661 INFO L225 Difference]: With dead ends: 99 [2020-10-22 02:26:19,661 INFO L226 Difference]: Without dead ends: 82 [2020-10-22 02:26:19,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:19,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-22 02:26:19,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2020-10-22 02:26:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-22 02:26:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 125 transitions. [2020-10-22 02:26:19,665 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 125 transitions. Word has length 16 [2020-10-22 02:26:19,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:19,665 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 125 transitions. [2020-10-22 02:26:19,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:19,667 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 125 transitions. [2020-10-22 02:26:19,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:19,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:19,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:19,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-22 02:26:19,668 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:19,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:19,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1031972303, now seen corresponding path program 11 times [2020-10-22 02:26:19,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:19,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480805813] [2020-10-22 02:26:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:20,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:20,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480805813] [2020-10-22 02:26:20,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:20,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:20,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [947906422] [2020-10-22 02:26:20,202 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:20,205 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:20,209 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:20,209 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:20,209 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:20,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:20,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:20,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:20,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:20,210 INFO L87 Difference]: Start difference. First operand 77 states and 125 transitions. Second operand 10 states. [2020-10-22 02:26:20,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:20,694 INFO L93 Difference]: Finished difference Result 96 states and 152 transitions. [2020-10-22 02:26:20,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:20,695 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:20,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:20,696 INFO L225 Difference]: With dead ends: 96 [2020-10-22 02:26:20,697 INFO L226 Difference]: Without dead ends: 83 [2020-10-22 02:26:20,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:20,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-22 02:26:20,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2020-10-22 02:26:20,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-22 02:26:20,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 126 transitions. [2020-10-22 02:26:20,702 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 126 transitions. Word has length 16 [2020-10-22 02:26:20,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:20,703 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 126 transitions. [2020-10-22 02:26:20,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:20,703 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 126 transitions. [2020-10-22 02:26:20,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:20,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:20,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:20,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-22 02:26:20,708 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:20,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:20,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1144930675, now seen corresponding path program 12 times [2020-10-22 02:26:20,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:20,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730936048] [2020-10-22 02:26:20,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:21,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:21,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730936048] [2020-10-22 02:26:21,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:21,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:21,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2049073489] [2020-10-22 02:26:21,149 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:21,151 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:21,155 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:21,155 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:21,156 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:21,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:21,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:21,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:21,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:21,158 INFO L87 Difference]: Start difference. First operand 78 states and 126 transitions. Second operand 10 states. [2020-10-22 02:26:21,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:21,511 INFO L93 Difference]: Finished difference Result 96 states and 151 transitions. [2020-10-22 02:26:21,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:21,512 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:21,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:21,513 INFO L225 Difference]: With dead ends: 96 [2020-10-22 02:26:21,514 INFO L226 Difference]: Without dead ends: 77 [2020-10-22 02:26:21,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-22 02:26:21,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 72. [2020-10-22 02:26:21,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-22 02:26:21,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 116 transitions. [2020-10-22 02:26:21,517 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 116 transitions. Word has length 16 [2020-10-22 02:26:21,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:21,517 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 116 transitions. [2020-10-22 02:26:21,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:21,518 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 116 transitions. [2020-10-22 02:26:21,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:21,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:21,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:21,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-22 02:26:21,519 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:21,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:21,519 INFO L82 PathProgramCache]: Analyzing trace with hash 23037531, now seen corresponding path program 13 times [2020-10-22 02:26:21,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:21,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426326143] [2020-10-22 02:26:21,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:21,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426326143] [2020-10-22 02:26:21,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:21,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:21,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1019311928] [2020-10-22 02:26:21,941 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:21,943 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:21,948 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 24 transitions. [2020-10-22 02:26:21,948 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:22,143 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:22,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:22,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:22,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:22,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:22,144 INFO L87 Difference]: Start difference. First operand 72 states and 116 transitions. Second operand 10 states. [2020-10-22 02:26:22,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:22,460 INFO L93 Difference]: Finished difference Result 95 states and 147 transitions. [2020-10-22 02:26:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:22,461 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:22,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:22,462 INFO L225 Difference]: With dead ends: 95 [2020-10-22 02:26:22,462 INFO L226 Difference]: Without dead ends: 84 [2020-10-22 02:26:22,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:22,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-22 02:26:22,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 74. [2020-10-22 02:26:22,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-22 02:26:22,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 118 transitions. [2020-10-22 02:26:22,465 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 118 transitions. Word has length 16 [2020-10-22 02:26:22,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:22,466 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 118 transitions. [2020-10-22 02:26:22,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:22,466 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2020-10-22 02:26:22,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:22,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:22,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:22,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-22 02:26:22,467 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:22,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:22,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1641480709, now seen corresponding path program 14 times [2020-10-22 02:26:22,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:22,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236010509] [2020-10-22 02:26:22,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:22,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:22,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236010509] [2020-10-22 02:26:22,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:22,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:22,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [557501641] [2020-10-22 02:26:22,905 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:22,909 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:22,914 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 02:26:22,915 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:23,061 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 22 [2020-10-22 02:26:23,114 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:23,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:23,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:23,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:23,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:23,115 INFO L87 Difference]: Start difference. First operand 74 states and 118 transitions. Second operand 10 states. [2020-10-22 02:26:23,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:23,488 INFO L93 Difference]: Finished difference Result 97 states and 150 transitions. [2020-10-22 02:26:23,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 02:26:23,488 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:23,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:23,489 INFO L225 Difference]: With dead ends: 97 [2020-10-22 02:26:23,489 INFO L226 Difference]: Without dead ends: 82 [2020-10-22 02:26:23,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:23,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-22 02:26:23,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 72. [2020-10-22 02:26:23,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-22 02:26:23,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 114 transitions. [2020-10-22 02:26:23,493 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 114 transitions. Word has length 16 [2020-10-22 02:26:23,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:23,494 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 114 transitions. [2020-10-22 02:26:23,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 114 transitions. [2020-10-22 02:26:23,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:23,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:23,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:23,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-22 02:26:23,495 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:23,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:23,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1892099271, now seen corresponding path program 1 times [2020-10-22 02:26:23,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:23,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434090853] [2020-10-22 02:26:23,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:23,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:23,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434090853] [2020-10-22 02:26:23,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:23,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-22 02:26:23,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [166517149] [2020-10-22 02:26:23,603 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:23,607 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:23,614 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 02:26:23,614 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:23,735 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:23,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-22 02:26:23,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:23,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-22 02:26:23,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:26:23,737 INFO L87 Difference]: Start difference. First operand 72 states and 114 transitions. Second operand 8 states. [2020-10-22 02:26:24,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:24,020 INFO L93 Difference]: Finished difference Result 63 states and 95 transitions. [2020-10-22 02:26:24,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:24,021 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-10-22 02:26:24,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:24,021 INFO L225 Difference]: With dead ends: 63 [2020-10-22 02:26:24,022 INFO L226 Difference]: Without dead ends: 63 [2020-10-22 02:26:24,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:26:24,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-22 02:26:24,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-10-22 02:26:24,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-22 02:26:24,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 89 transitions. [2020-10-22 02:26:24,024 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 89 transitions. Word has length 16 [2020-10-22 02:26:24,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:24,025 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 89 transitions. [2020-10-22 02:26:24,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-22 02:26:24,025 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 89 transitions. [2020-10-22 02:26:24,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:24,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:24,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:24,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-22 02:26:24,026 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:24,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:24,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1908784089, now seen corresponding path program 15 times [2020-10-22 02:26:24,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:24,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109453920] [2020-10-22 02:26:24,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:24,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109453920] [2020-10-22 02:26:24,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:24,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:24,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [890567034] [2020-10-22 02:26:24,449 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:24,452 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:24,457 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 02:26:24,457 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:24,629 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 26 [2020-10-22 02:26:24,630 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:24,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:24,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:24,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:24,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:24,631 INFO L87 Difference]: Start difference. First operand 59 states and 89 transitions. Second operand 10 states. [2020-10-22 02:26:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:25,015 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2020-10-22 02:26:25,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:25,016 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:25,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:25,017 INFO L225 Difference]: With dead ends: 68 [2020-10-22 02:26:25,017 INFO L226 Difference]: Without dead ends: 58 [2020-10-22 02:26:25,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:25,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-22 02:26:25,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2020-10-22 02:26:25,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-22 02:26:25,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 85 transitions. [2020-10-22 02:26:25,020 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 85 transitions. Word has length 16 [2020-10-22 02:26:25,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:25,020 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 85 transitions. [2020-10-22 02:26:25,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:25,020 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 85 transitions. [2020-10-22 02:26:25,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:25,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:25,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:25,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-22 02:26:25,021 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:25,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:25,021 INFO L82 PathProgramCache]: Analyzing trace with hash -899896281, now seen corresponding path program 16 times [2020-10-22 02:26:25,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:25,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45118597] [2020-10-22 02:26:25,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:25,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:25,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45118597] [2020-10-22 02:26:25,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:25,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:25,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [534775720] [2020-10-22 02:26:25,451 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:25,454 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:25,459 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 24 transitions. [2020-10-22 02:26:25,459 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:25,712 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:25,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:25,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:25,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:25,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:25,714 INFO L87 Difference]: Start difference. First operand 57 states and 85 transitions. Second operand 10 states. [2020-10-22 02:26:26,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:26,082 INFO L93 Difference]: Finished difference Result 79 states and 113 transitions. [2020-10-22 02:26:26,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:26,083 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:26,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:26,083 INFO L225 Difference]: With dead ends: 79 [2020-10-22 02:26:26,083 INFO L226 Difference]: Without dead ends: 68 [2020-10-22 02:26:26,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:26,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-22 02:26:26,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2020-10-22 02:26:26,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-22 02:26:26,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 83 transitions. [2020-10-22 02:26:26,087 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 83 transitions. Word has length 16 [2020-10-22 02:26:26,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:26,087 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 83 transitions. [2020-10-22 02:26:26,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:26,087 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 83 transitions. [2020-10-22 02:26:26,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:26,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:26,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:26,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-22 02:26:26,088 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:26,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:26,088 INFO L82 PathProgramCache]: Analyzing trace with hash 831505269, now seen corresponding path program 17 times [2020-10-22 02:26:26,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:26,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019988323] [2020-10-22 02:26:26,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:26,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:26,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019988323] [2020-10-22 02:26:26,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:26,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:26,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [920498579] [2020-10-22 02:26:26,467 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:26,469 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:26,474 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 02:26:26,475 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:26,597 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:26,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:26,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:26,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:26,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:26,599 INFO L87 Difference]: Start difference. First operand 57 states and 83 transitions. Second operand 10 states. [2020-10-22 02:26:26,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:26,977 INFO L93 Difference]: Finished difference Result 79 states and 112 transitions. [2020-10-22 02:26:26,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 02:26:26,977 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:26,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:26,978 INFO L225 Difference]: With dead ends: 79 [2020-10-22 02:26:26,978 INFO L226 Difference]: Without dead ends: 64 [2020-10-22 02:26:26,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:26,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-22 02:26:26,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 54. [2020-10-22 02:26:26,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-22 02:26:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 77 transitions. [2020-10-22 02:26:26,981 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 77 transitions. Word has length 16 [2020-10-22 02:26:26,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:26,981 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 77 transitions. [2020-10-22 02:26:26,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2020-10-22 02:26:26,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:26,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:26,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:26,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-22 02:26:26,983 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:26,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:26,983 INFO L82 PathProgramCache]: Analyzing trace with hash -501689167, now seen corresponding path program 18 times [2020-10-22 02:26:26,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:26,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001000956] [2020-10-22 02:26:26,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:27,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:27,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001000956] [2020-10-22 02:26:27,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:27,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:27,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [860470293] [2020-10-22 02:26:27,388 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:27,392 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:27,396 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 24 transitions. [2020-10-22 02:26:27,397 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:27,610 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 23 [2020-10-22 02:26:27,723 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 26 [2020-10-22 02:26:27,724 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:27,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:27,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:27,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:27,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:27,725 INFO L87 Difference]: Start difference. First operand 54 states and 77 transitions. Second operand 10 states. [2020-10-22 02:26:28,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:28,097 INFO L93 Difference]: Finished difference Result 70 states and 97 transitions. [2020-10-22 02:26:28,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:28,098 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:28,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:28,099 INFO L225 Difference]: With dead ends: 70 [2020-10-22 02:26:28,099 INFO L226 Difference]: Without dead ends: 59 [2020-10-22 02:26:28,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:28,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-22 02:26:28,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2020-10-22 02:26:28,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-22 02:26:28,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2020-10-22 02:26:28,101 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 68 transitions. Word has length 16 [2020-10-22 02:26:28,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:28,101 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 68 transitions. [2020-10-22 02:26:28,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2020-10-22 02:26:28,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:28,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:28,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:28,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-22 02:26:28,103 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:28,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:28,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1116754011, now seen corresponding path program 19 times [2020-10-22 02:26:28,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:28,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968522193] [2020-10-22 02:26:28,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:28,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968522193] [2020-10-22 02:26:28,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:28,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:28,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [398014881] [2020-10-22 02:26:28,448 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:28,450 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:28,455 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-22 02:26:28,455 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:28,634 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:28,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:28,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:28,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:28,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:28,635 INFO L87 Difference]: Start difference. First operand 48 states and 68 transitions. Second operand 10 states. [2020-10-22 02:26:29,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:29,003 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2020-10-22 02:26:29,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 02:26:29,004 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:29,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:29,004 INFO L225 Difference]: With dead ends: 66 [2020-10-22 02:26:29,004 INFO L226 Difference]: Without dead ends: 57 [2020-10-22 02:26:29,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:29,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-22 02:26:29,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2020-10-22 02:26:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-22 02:26:29,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2020-10-22 02:26:29,007 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 16 [2020-10-22 02:26:29,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:29,007 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2020-10-22 02:26:29,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2020-10-22 02:26:29,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:29,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:29,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:29,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-22 02:26:29,008 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:29,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:29,009 INFO L82 PathProgramCache]: Analyzing trace with hash -536363765, now seen corresponding path program 20 times [2020-10-22 02:26:29,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:29,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709678925] [2020-10-22 02:26:29,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:29,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:29,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709678925] [2020-10-22 02:26:29,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:29,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:29,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [314088232] [2020-10-22 02:26:29,428 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:29,430 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:29,435 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 02:26:29,435 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:29,575 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:29,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:29,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:29,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:29,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:29,577 INFO L87 Difference]: Start difference. First operand 46 states and 64 transitions. Second operand 10 states. [2020-10-22 02:26:30,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:30,002 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2020-10-22 02:26:30,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:30,003 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:30,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:30,003 INFO L225 Difference]: With dead ends: 59 [2020-10-22 02:26:30,003 INFO L226 Difference]: Without dead ends: 49 [2020-10-22 02:26:30,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:30,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-22 02:26:30,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2020-10-22 02:26:30,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-22 02:26:30,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 65 transitions. [2020-10-22 02:26:30,010 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 65 transitions. Word has length 16 [2020-10-22 02:26:30,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:30,010 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 65 transitions. [2020-10-22 02:26:30,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:30,010 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2020-10-22 02:26:30,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:30,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:30,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:30,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-22 02:26:30,011 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:30,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:30,011 INFO L82 PathProgramCache]: Analyzing trace with hash -649322137, now seen corresponding path program 21 times [2020-10-22 02:26:30,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:30,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888034741] [2020-10-22 02:26:30,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:30,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:30,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888034741] [2020-10-22 02:26:30,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:30,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:30,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1892529744] [2020-10-22 02:26:30,400 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:30,402 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:30,407 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 20 transitions. [2020-10-22 02:26:30,407 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:30,566 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 26 [2020-10-22 02:26:30,567 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:30,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:30,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:30,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:30,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:30,569 INFO L87 Difference]: Start difference. First operand 47 states and 65 transitions. Second operand 10 states. [2020-10-22 02:26:30,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:30,937 INFO L93 Difference]: Finished difference Result 55 states and 73 transitions. [2020-10-22 02:26:30,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:30,938 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:30,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:30,938 INFO L225 Difference]: With dead ends: 55 [2020-10-22 02:26:30,938 INFO L226 Difference]: Without dead ends: 45 [2020-10-22 02:26:30,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:30,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-22 02:26:30,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2020-10-22 02:26:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-22 02:26:30,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2020-10-22 02:26:30,941 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 16 [2020-10-22 02:26:30,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:30,941 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2020-10-22 02:26:30,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:30,942 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2020-10-22 02:26:30,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:30,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:30,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:30,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-22 02:26:30,942 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:30,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:30,943 INFO L82 PathProgramCache]: Analyzing trace with hash -822569829, now seen corresponding path program 22 times [2020-10-22 02:26:30,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:30,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600761069] [2020-10-22 02:26:30,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:31,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600761069] [2020-10-22 02:26:31,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:31,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:31,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [161306875] [2020-10-22 02:26:31,361 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:31,365 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:31,371 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 02:26:31,371 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:31,420 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:31,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:31,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:31,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:31,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:31,421 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand 10 states. [2020-10-22 02:26:31,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:31,807 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2020-10-22 02:26:31,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:31,808 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:31,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:31,809 INFO L225 Difference]: With dead ends: 51 [2020-10-22 02:26:31,809 INFO L226 Difference]: Without dead ends: 43 [2020-10-22 02:26:31,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:31,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-22 02:26:31,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-22 02:26:31,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-22 02:26:31,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2020-10-22 02:26:31,812 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 16 [2020-10-22 02:26:31,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:31,812 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2020-10-22 02:26:31,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:31,812 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2020-10-22 02:26:31,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:31,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:31,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:31,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-22 02:26:31,813 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:31,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:31,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1074577193, now seen corresponding path program 23 times [2020-10-22 02:26:31,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:31,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929396600] [2020-10-22 02:26:31,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:32,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:32,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929396600] [2020-10-22 02:26:32,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:32,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:32,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2133055430] [2020-10-22 02:26:32,195 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:32,198 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:32,202 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 02:26:32,202 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:32,237 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:32,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:32,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:32,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:32,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:32,238 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand 10 states. [2020-10-22 02:26:32,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:32,633 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2020-10-22 02:26:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:32,633 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:32,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:32,634 INFO L225 Difference]: With dead ends: 53 [2020-10-22 02:26:32,634 INFO L226 Difference]: Without dead ends: 43 [2020-10-22 02:26:32,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:32,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-22 02:26:32,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-22 02:26:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-22 02:26:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2020-10-22 02:26:32,637 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 16 [2020-10-22 02:26:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:32,637 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2020-10-22 02:26:32,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2020-10-22 02:26:32,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:32,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:32,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:32,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-22 02:26:32,639 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:32,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:32,639 INFO L82 PathProgramCache]: Analyzing trace with hash 961618821, now seen corresponding path program 24 times [2020-10-22 02:26:32,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:32,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865320785] [2020-10-22 02:26:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:33,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:33,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865320785] [2020-10-22 02:26:33,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:33,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:33,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [350506919] [2020-10-22 02:26:33,091 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:33,094 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:33,099 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 18 transitions. [2020-10-22 02:26:33,099 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:33,144 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:33,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:33,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:33,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:33,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:33,145 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand 10 states. [2020-10-22 02:26:33,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:33,541 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2020-10-22 02:26:33,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:33,542 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:33,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:33,542 INFO L225 Difference]: With dead ends: 49 [2020-10-22 02:26:33,542 INFO L226 Difference]: Without dead ends: 38 [2020-10-22 02:26:33,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:33,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-22 02:26:33,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-22 02:26:33,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-22 02:26:33,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2020-10-22 02:26:33,545 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 16 [2020-10-22 02:26:33,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:33,545 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2020-10-22 02:26:33,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:33,545 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2020-10-22 02:26:33,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:33,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:33,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:33,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-22 02:26:33,546 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:33,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:33,547 INFO L82 PathProgramCache]: Analyzing trace with hash 540025319, now seen corresponding path program 25 times [2020-10-22 02:26:33,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:33,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402168703] [2020-10-22 02:26:33,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:34,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:34,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402168703] [2020-10-22 02:26:34,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:34,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:34,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [930706067] [2020-10-22 02:26:34,051 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:34,055 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:34,061 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:34,061 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:34,062 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:34,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:34,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:34,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:34,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:34,063 INFO L87 Difference]: Start difference. First operand 38 states and 50 transitions. Second operand 10 states. [2020-10-22 02:26:34,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:34,527 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2020-10-22 02:26:34,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:34,527 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:34,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:34,528 INFO L225 Difference]: With dead ends: 38 [2020-10-22 02:26:34,528 INFO L226 Difference]: Without dead ends: 24 [2020-10-22 02:26:34,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-22 02:26:34,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-22 02:26:34,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-22 02:26:34,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-10-22 02:26:34,530 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 16 [2020-10-22 02:26:34,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:34,531 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-10-22 02:26:34,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:34,531 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2020-10-22 02:26:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:34,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:34,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:34,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-22 02:26:34,532 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:34,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:34,533 INFO L82 PathProgramCache]: Analyzing trace with hash -368314139, now seen corresponding path program 4 times [2020-10-22 02:26:34,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:34,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387680497] [2020-10-22 02:26:34,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:34,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387680497] [2020-10-22 02:26:34,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:34,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-22 02:26:34,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [319362496] [2020-10-22 02:26:34,871 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:34,873 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:34,876 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:34,876 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:34,877 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:34,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-22 02:26:34,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:34,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-22 02:26:34,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-22 02:26:34,877 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 9 states. [2020-10-22 02:26:35,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:35,156 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-10-22 02:26:35,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:35,156 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-22 02:26:35,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:35,157 INFO L225 Difference]: With dead ends: 23 [2020-10-22 02:26:35,157 INFO L226 Difference]: Without dead ends: 23 [2020-10-22 02:26:35,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-22 02:26:35,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-22 02:26:35,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-22 02:26:35,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-22 02:26:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2020-10-22 02:26:35,159 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 16 [2020-10-22 02:26:35,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:35,159 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2020-10-22 02:26:35,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-22 02:26:35,159 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2020-10-22 02:26:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:35,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:35,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:35,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-22 02:26:35,160 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:35,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:35,160 INFO L82 PathProgramCache]: Analyzing trace with hash -368314101, now seen corresponding path program 26 times [2020-10-22 02:26:35,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:35,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277089904] [2020-10-22 02:26:35,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:35,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277089904] [2020-10-22 02:26:35,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:35,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:35,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1512676286] [2020-10-22 02:26:35,584 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:35,586 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:35,589 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:35,589 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:35,589 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:35,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:35,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:35,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:35,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:35,590 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand 10 states. [2020-10-22 02:26:35,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:35,904 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2020-10-22 02:26:35,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:35,904 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:35,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:35,905 INFO L225 Difference]: With dead ends: 35 [2020-10-22 02:26:35,905 INFO L226 Difference]: Without dead ends: 25 [2020-10-22 02:26:35,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:35,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-22 02:26:35,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2020-10-22 02:26:35,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-22 02:26:35,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-10-22 02:26:35,908 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 16 [2020-10-22 02:26:35,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:35,908 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-10-22 02:26:35,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2020-10-22 02:26:35,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:35,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:35,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:35,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-22 02:26:35,909 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:35,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:35,909 INFO L82 PathProgramCache]: Analyzing trace with hash -481272473, now seen corresponding path program 27 times [2020-10-22 02:26:35,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:35,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290781957] [2020-10-22 02:26:35,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:36,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290781957] [2020-10-22 02:26:36,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:36,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:36,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1331554809] [2020-10-22 02:26:36,257 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:36,259 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:36,262 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:36,262 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:36,263 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:36,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:36,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:36,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:36,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:36,263 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 10 states. [2020-10-22 02:26:36,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:36,587 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2020-10-22 02:26:36,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:36,588 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:36,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:36,588 INFO L225 Difference]: With dead ends: 31 [2020-10-22 02:26:36,588 INFO L226 Difference]: Without dead ends: 22 [2020-10-22 02:26:36,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:36,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-22 02:26:36,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-22 02:26:36,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-22 02:26:36,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-10-22 02:26:36,591 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 16 [2020-10-22 02:26:36,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:36,591 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-22 02:26:36,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:36,592 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-10-22 02:26:36,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:36,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:36,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:36,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-22 02:26:36,592 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:36,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:36,592 INFO L82 PathProgramCache]: Analyzing trace with hash -659771717, now seen corresponding path program 28 times [2020-10-22 02:26:36,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:36,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867104048] [2020-10-22 02:26:36,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:36,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867104048] [2020-10-22 02:26:36,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:36,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:36,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1330780950] [2020-10-22 02:26:36,948 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:36,951 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:36,955 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:36,955 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:36,955 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:36,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:36,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:36,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:36,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:36,956 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 10 states. [2020-10-22 02:26:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:37,204 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2020-10-22 02:26:37,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:37,205 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:37,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:37,206 INFO L225 Difference]: With dead ends: 29 [2020-10-22 02:26:37,206 INFO L226 Difference]: Without dead ends: 21 [2020-10-22 02:26:37,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:37,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-22 02:26:37,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-22 02:26:37,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-22 02:26:37,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-10-22 02:26:37,208 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 16 [2020-10-22 02:26:37,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:37,209 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-10-22 02:26:37,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:37,209 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-10-22 02:26:37,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:37,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:37,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:37,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-22 02:26:37,210 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:37,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:37,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1237375305, now seen corresponding path program 29 times [2020-10-22 02:26:37,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:37,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305825160] [2020-10-22 02:26:37,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:37,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305825160] [2020-10-22 02:26:37,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:37,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:37,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [208102030] [2020-10-22 02:26:37,668 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:37,673 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:37,679 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:37,679 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:37,680 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:37,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:37,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:37,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:37,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:37,681 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 10 states. [2020-10-22 02:26:38,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:38,152 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2020-10-22 02:26:38,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:38,153 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:38,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:38,154 INFO L225 Difference]: With dead ends: 27 [2020-10-22 02:26:38,154 INFO L226 Difference]: Without dead ends: 17 [2020-10-22 02:26:38,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:38,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-22 02:26:38,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-22 02:26:38,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-22 02:26:38,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2020-10-22 02:26:38,157 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2020-10-22 02:26:38,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:38,157 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2020-10-22 02:26:38,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2020-10-22 02:26:38,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:26:38,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:26:38,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:26:38,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-22 02:26:38,159 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:26:38,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:26:38,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1124416933, now seen corresponding path program 30 times [2020-10-22 02:26:38,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:26:38,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281147446] [2020-10-22 02:26:38,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:26:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:26:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:26:38,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281147446] [2020-10-22 02:26:38,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:26:38,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:26:38,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1238110310] [2020-10-22 02:26:38,699 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:26:38,704 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:26:38,710 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 02:26:38,710 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:26:38,710 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:26:38,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:26:38,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:26:38,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:26:38,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:26:38,712 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 10 states. [2020-10-22 02:26:39,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:26:39,093 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-22 02:26:39,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:26:39,093 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:26:39,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:26:39,094 INFO L225 Difference]: With dead ends: 16 [2020-10-22 02:26:39,094 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:26:39,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:26:39,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:26:39,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:26:39,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:26:39,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:26:39,095 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-22 02:26:39,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:26:39,095 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:26:39,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:26:39,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:26:39,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:26:39,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-22 02:26:39,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:26:39 BasicIcfg [2020-10-22 02:26:39,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:26:39,101 INFO L168 Benchmark]: Toolchain (without parser) took 47863.87 ms. Allocated memory was 141.6 MB in the beginning and 544.2 MB in the end (delta: 402.7 MB). Free memory was 100.8 MB in the beginning and 409.6 MB in the end (delta: -308.8 MB). Peak memory consumption was 93.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:26:39,101 INFO L168 Benchmark]: CDTParser took 3.05 ms. Allocated memory is still 141.6 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:26:39,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1257.38 ms. Allocated memory was 141.6 MB in the beginning and 235.9 MB in the end (delta: 94.4 MB). Free memory was 100.0 MB in the beginning and 170.1 MB in the end (delta: -70.1 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:26:39,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.34 ms. Allocated memory is still 235.9 MB. Free memory was 170.1 MB in the beginning and 167.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:26:39,102 INFO L168 Benchmark]: Boogie Preprocessor took 51.36 ms. Allocated memory is still 235.9 MB. Free memory was 167.2 MB in the beginning and 164.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-22 02:26:39,103 INFO L168 Benchmark]: RCFGBuilder took 823.78 ms. Allocated memory is still 235.9 MB. Free memory was 164.4 MB in the beginning and 111.0 MB in the end (delta: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:26:39,103 INFO L168 Benchmark]: TraceAbstraction took 45621.63 ms. Allocated memory was 235.9 MB in the beginning and 544.2 MB in the end (delta: 308.3 MB). Free memory was 111.0 MB in the beginning and 409.6 MB in the end (delta: -298.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:26:39,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.05 ms. Allocated memory is still 141.6 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1257.38 ms. Allocated memory was 141.6 MB in the beginning and 235.9 MB in the end (delta: 94.4 MB). Free memory was 100.0 MB in the beginning and 170.1 MB in the end (delta: -70.1 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 98.34 ms. Allocated memory is still 235.9 MB. Free memory was 170.1 MB in the beginning and 167.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.36 ms. Allocated memory is still 235.9 MB. Free memory was 167.2 MB in the beginning and 164.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 823.78 ms. Allocated memory is still 235.9 MB. Free memory was 164.4 MB in the beginning and 111.0 MB in the end (delta: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 45621.63 ms. Allocated memory was 235.9 MB in the beginning and 544.2 MB in the end (delta: 308.3 MB). Free memory was 111.0 MB in the beginning and 409.6 MB in the end (delta: -298.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 980 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 19 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 12.5s, 168 PlacesBefore, 34 PlacesAfterwards, 178 TransitionsBefore, 32 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 8 FixpointIterations, 112 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 22 TrivialYvCompositions, 24 ConcurrentYvCompositions, 12 ChoiceCompositions, 222 TotalNumberOfCompositions, 3600 MoverChecksTotal - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1671]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 153 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 45.4s, OverallIterations: 39, TraceHistogramMax: 1, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.5s, HoareTripleCheckerStatistics: 617 SDtfs, 507 SDslu, 1999 SDs, 0 SdLazy, 5154 SolverSat, 580 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 467 GetRequests, 75 SyntacticMatches, 16 SemanticMatches, 376 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 39 MinimizatonAttempts, 282 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 581 NumberOfCodeBlocks, 581 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 542 ConstructedInterpolants, 0 QuantifiedInterpolants, 185589 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 39 InterpolantComputations, 39 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...